TWI220817B - Antenna matching device and method thereof - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
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1220817 五、發明說明(1) 【發明所屬之技術領域】 本發明係有關於一種天線匹配裝置及方法,特別是指 利用一循環器和一雙工器達成匹配最佳化的天線匹配裝置 及方法。 【先前技術】 請參閱圖一所示,在傳統的傳輸系統如CDMA(Code
Division Multiple Access)或FDMA(Frequency Division
Multiple Access)調變系統 線1 1、一匹配電路1 2、一雙 模組1 6和一傳輸模組1 5。雙 號,隔絕器1 4具有單一方向 絕器1 4、雙工器1 3與匹配電 14具有單一方向性,可避免 組傳輸的功率經天線11所反 路1 2則可用來匹配天線負載 此收發機1 0通常利用實 天線11負載阻抗,並且決定 天候環境的不同,天線U的 當天線11的負載改變時,反 電路12就不再是最佳化之匹 低,在此狀態下會損耗收發 率和影響接收端所接收之訊 放大器的輸出功率來維持發 中,一收發機1 0包括有:一天 工器1 3、一隔絕器i 4、一接收 工器1 3可分頻傳送和接收訊 性,傳輸模組傳輸的功率經隔 路1 2傳輸至天線1 1,因隔絕器 傳輸模組1 5中的元件被傳輸模 射的反射功率所損壞,匹配電 阻抗’使反射功率降至最小。 際場測或假設理想情況下設定 =配電路1 2的阻抗。然而隨著 實際負載也會隨著環境變化, 射功率隨之變化,原本的匹配 配’其天線增益也會隨之降 機10中的功率放大器之輸出功 號的強度’於是必須藉由調整 射功率的穩定,但是如此便會
1220817 五、發明說明(2) 增加電流消 【發明内容 有鑑於 之天線匹配 佳化。此天 元、一循環 一接收模組 其中, 抗,且具有 號。循環器 配電路,匹 過第一端傳 分頻單 與該接收訊 至控制單元 依據反射訊 本發明 利用前述之 a•利用循環 輸至匹配電 配電路,並 值和參考值 界值。 耗且減低收發機的工作效益。 此,本發 裝置,使 線匹配裝 器和一控 ,其中傳 匹配電路 第一端與 則耦接至 配電路相 送該反射 元,可為 號,並依 與接收模 號估算調 之另一目 天線匹配 器獲取一 路所產生 且設定一 之差值以 ,,主要目的係提供一種用於收發機 传该收發機的天線匹配負載阻抗為最 置包含有:一匹配電路、一分頻單 制單元。收發機則具有一傳輸模組與 ^模組可發送一發射訊號。 可藉一調整信號調整其天線匹配阻 ,二端’第二端係用於接收一接收訊 第一端’並接收該發射訊號後導入匹 對於發射訊號產生一反射訊號,並透 訊號與該接收信號至循環器。 一雙工器,從循環器接收該反射訊號 反射訊號與接收訊號之頻率分別輸出 組。控制單元,則耦接至匹配電路, 整信號。 的則是提供一種天線匹配方法,其係 裝置來實施。此方法包括下列步驟: 反射值,其中反射值係為發射訊號傳 ;b•控制單元提供一調整信號至匹 參考值和一臨界值;以及c.依據反射 改變調整信號,使得此差值達到該臨
1220817 五、發明說明(3) 利用上述之天線匹配裝置和天線匹配方法,可使收發 =天線端#有最佳匹配狀態、’使得傳輸和接收的訊號強 度都能達到最大值。 一為使貴審查委員對本發明能有更進一步的了解與認 同’茲配合圖示作一詳細說明如后。 【實施方式】 請參閱圖二A所示,其為本發明之用於一收發機之天 線匹配裝置第-較佳實施例。此收發機具有一傳輸模組” 與一接收模組28,天線匹配裝置2〇則包括有:一匹配電路 21、一雙工器22、一循環器23、一控制單元24和一耦合器 2 5 ° 匹配電路21具第一端與第二端,第二端耦接至一天線 2 6匹配電路2 1可藉一調整信號調整其天線匹配阻抗,使 天線26反射訊號達到最小值,以達到匹配最佳化,並且回 應傳輸模組27之一發射訊號產生一反射訊號,在此較佳實 施=中,該調整信號其係為一電壓值,該電壓值在一最大 電壓值Vmax和一最小電壓值Vmin之間。 循壤器2 3係為三端的循環器,第一端耦接至耦合器2 5 且接收發射訊號,第二端耦接至匹配電路2 1的第二端且將 發射訊號導入匹配電路21,第三端耦接至雙工器22並將反 射訊號及一接收訊號導入雙工器2 2,然而循環器2 3具有單 二方向之特性,使得第一端接收訊號由第二端輸出,第二 端接收訊號由第三端輸出,第三端接收訊號由第一端輸
1220817
出,循環器2 3盔法诘&从紅 # · Μ έΒ 9 7 ^ 逆向作動,糟此防止該反射訊號傳入傳 輸模組27而導致損壞。 $ 呀 号卢盥^你Z If接收該反射訊號與該接收訊號,並依反射訊 2g 7 5 ^之頻率分別輸出至控制單元24與接收模組 制早tl24具有第一檢測器241和第二檢測器,並 ^匹配電路21與雙卫器2 2,其依據該反射訊號估算調 指號,用以控制匹配電路2 i *傳輸模組25發射該發射訊號時(該發射訊號具有第 一功率),耦合器25會從其中取樣一第二功率送至控制單 兀24中的第二檢測器242。循環器23會將該第一功率傳送 至匹配電路21,再經由天線26發射以及產生前述之反射訊 ^ (具有一反射功率)。該反射功率會輸入循環器2 3的第二 知,再傳送至循環器2 3之第三端所耦接的雙工器2 2中,藉 由雙工器2 2之分頻特性,使反射功率傳送至控制單元2 4中 的第一檢測器241,其中該第二功率係為某適當比例之第 一功率,所以由第二功率和第一功率的大小可得知反射功 率和發射功率相差的大小,並且以第二功率做為一第一參 考值與苐一檢測器2 4 1所偵測到的反射功率反覆進行比 較’得到一調整信號調整匹配電路2 1,使得天線反射功率 達到最小值,以達到匹配最佳化。 §匹配網路精由偵測反射功率機制量得功率反射匹配 最佳化時’此時天線的增益為最大,則無線接收訊號的品 質也同樣會最佳,當接收模組28接收一訊號時,由天線接
1220817
五、發明說明(5) 收後送入循環器23之第二端,再由循環器23之第三端輪出 至雙工器22中,雙工器22可將干擾濾除並且將該訊號送入 該接收模組。 請參閱圖二B所示,其係本發明之天線匹配裝置的第 二較佳實施例。與第一佳實施例之不同點在於第二較佳實 施例中省略輕合^§ 2 5 ’可直接將傳輸模組2 7所發射之第二 功率藉由循環器2 3送至匹配電路2 1中,再經由天線2 6發射 並且產生一反射功率,循環器2 3將該反射功率傳送至控制 單元24中的第一檢測器241,並且第二檢測器242中預設一 第二參考值,可與該反射功率作一計算,以得到一調整信 號調整匹配電路2 1,使得該反射功率達到最小值,以達到 匹配最佳化。 ^請參閱圖三所示,其係本發明之天線匹配裝置的第三 較佳實施例。其中收發機具有一傳輸模組27與一接收模組 =,該天線匹配裝置3〇係包括有:一匹配電路2丨、一分 早元3、-循環器23、耦合器25和一控制單元24。該作動 原理如同上述之第一較佳實施例在此不加以贅述, 則在於分頻單元3由一*、s诸、士口口 0 , j ^ 士人 組成,分頻單元3可、虐1和一苐一耦合器32所 ..^ , ^ T /慮除干擾和區分反射訊號與接收訊 就,並且藉由第一紅人 以;《 L ::=耦合器32將接收訊號送入接收模組28, 請參閱圖四所示第:”益241中。 程圖,該方法可實於二其係為本發明之天線匹配方法之流 送和接收訊號時,、圖架構中。當收發機開始傳 g由循環器2 3操取一反射功率,比較該
第9頁 1220817 五、發明說明(6) '~' -- 反射功率和傳輸模組27所發射之功率,利用兩者差值估算 所需之調整信號以調整匹配電路2 1,以達到匹配最佳化該 方法包括下列步驟: 步驟50 :設定一匹配臨界值〇pt、一臨界電壓值以“七 和匹配電路之調整信號範圍(Vmax〜Vm i η ),該匹配陟界值 〇Pt和臨界電壓值vtest為匹配電路可達成最/佳匹匹配配^界值 步驟51 :利用循環器23可獲取一反射功率; 步,2 :設定一參考值,該參考值係為傳輸模組 發射之功率; :驟53 :言十算反射功率和參考值之差值,是否為匹配 :界值〇Pt,若為、、否,,則改變該調整信號,直到該 達到匹配臨界值Opt ;
步=54 : 4出該調整信號以調整匹配 線匹配達到最佳化。 1 f X 如圖六所示,為本發明之天線匹配方法另一 ^流Ϊ圖’該方法可實施於圖二A之架構中。下列之步 :ΚΓΐ10:,Λ'為該天線匹配裝置尋找最佳匹配時 方法,利用索引(INDE)ouo暫存器, 值,檢查此差值是否達到=第二檢測器β之差 差值達到臨界匹配值Opt的匹電 0pt敫以求付使該 調整電壓調整匹配電路21即可配達電到 =之/整毋電壓,用此 效。 丨」這到匹配電路最佳化之功 步驛91 :設定匹配臨界值Opt、—臨界電壓值vtest#0
第10頁 1220817 五、發明說明(7) 匹配電路之調整信號範圍(Vmax,Vmin)、一索引(index) i = 1 和一匹配網路之調整電壓V[ i ]=Vtest ; 步驟92 :當V[i]= = Vtest 時,設定,A[i]=D2-Dl,其 中D1為第一檢測器之功率值,D 2為第二檢測器之功率值; 步驟93 ··設定V[i + l] = (Vmax + Vmin)/2,Vmax 其係為 匹配網路之調整電壓之最大電壓值,vmin其係為匹配網路 之調整電壓之最小電壓值; 步驟94 :當V[i + 1]= (Vmax + Vmin)/2 時,設定A[i + 1] =D2-D1 ; 步驟95 :設定第二暫存器B = A[i + 1],第一暫存器a = a [i]; 步驟96 :比較第二暫存器b是否大於第一暫存器a ,若 、是"執行步驟97,若、、否"則執行步驟98 ; 步驟97 :設定A[i + 1]=B,V[i + 2] = ( V[i + 1] +Vmin)/2 , A[i+2]=D2-Dl i = i + 1 ; 步驟98 :設定A[i + l]=A[i],V[i + 2] = ( V[i + 1] +Vmax)/2 , A[i+2]=D2-Dl i = i +1 ; 步驟99 :比較A[i + 2]是否大於匹配臨界值Qpt,若 a是夕執行步驟1 0 0,若、、否"則重新執行步驟9 5至步驟 9 9 ;以及 步驟100 :送出調整電壓V[i+ 2],以達到匹配最佳 化0
第11頁 1220817 五、發明說明(8) 請參閱圖五所示,其為本發明之天線匹配方法之設定 一匹配臨界值Opt之流程圖,其利用一可調式負載限定輸 入的負載阻抗範圍以及調整信號之電壓範圍(最大電壓值 Vmax和最小電壓Vmin),並且設定匹配臨界值〇pt和臨界電 壓值Vtest。該方法包括下列步驟: 步驟60 :在天線26 —端接上一可調式負載; 步驟6 1 ·限疋輸入的負載阻抗範圍以及調整信號範 圍; 步驟62 :量測發射功率和反射功率的差值; ^驟63 :找出兩者間最大功率差值,設定此最大功率 差值為匹配g品界值〇 P t, 係為臨界電諸二。此…電路21之的調整信號其 和雙匹配裝置結合循環器23單-方向性 ㈣送將發射功率經由該循環器23從天 信號調整匹配電路21:,查配所造成的反射功率’藉由調整 態,在最來;Γ配天線負載阻抗為最佳化狀 或傳送都能得到;好的效:增盈達到最大’所以不論接收 來限定t =述者’僅為本發明較佳實施例而已,* η 内。 ,、修飾皆因屬於本發明專利涵蓋之範圍 第12頁 1220817 圖式簡單說明 【圖式簡單說明】 圖一係為習知收發機之方塊圖。 圖二A係顯示本發明之用於一收發機之天線匹配裝置 第一較佳實施例。 圖二B係顯示本發明之用於一收發機之天線匹配裝置 第二較佳實施例。 圖三係顯示本發明之用於一收發機之天線匹配裝置第 三較佳實施例。 圖四係為本發明之天線匹配方法之流程圖。 圖五係為本發明之天線匹配方法之設定一匹配臨界值 Opt之流程圖。 圖六係為本發明之天線匹配方法之另一較佳實施例之 流程圖。 圖式之圖號說明: 1 0 -收發機 11、2 6 -天線 13- 雙工器 14- 隔絕器 15- 傳輸模組 1 6 -接收模組 2 0、3 0 -天線匹配裝置 1 2、2 1 -匹配電路 22-雙工器
第13頁 1220817 圖式簡單說明 2 3 -循環器 24-控制單元 2 5 -搞合器 27-傳輸模組 2 8 -接收模組 3-分頻單元 3 1 -帶通濾波器 3 2 -第一麵合器
第14頁
Claims (1)
1220817 六、申請專利範圍 - 1·二種用☆-收發機之天線匹配裝x,該收發冑具有一傳 輸模組與一接收模、组,該#輸模組發送一發射訊號至該 匹配裝置,該匹配裝置包含: 匹配電路可藉一調整信號調整其天線匹配阻抗,該 匹配電路具一第-端與一第二端,該第二端用於接收 一接收訊號;
一循環器,耦接至該第一端,並接收該發射訊號後導入 該匹配電路,該匹配電路相對於該發射訊號回應一反 射訊號,該匹配電路透過該第一端傳送該反射訊號與 該接收信號至該循環器; 一控制單元,耦接至該匹配電路,板據該反射訊號估算 該調整信號; 一分頻單元,耦接於該循環器,接收該反射訊號與該接 收吼號,並依該反射訊號與該接收訊號之頻率分別輸 出至該控制單元與該接收模組。 2·如申請專利範圍第1項所述之天線匹配裝置,其中該分 頻單元係為一雙工器(duplexer)。 3·如申請專利範圍第1項所述之天線匹配裝置,其中該分 頻單元包含一帶通濾波器和一耦合器。
4 ·如申請專利範圍第1項所述之天線匹配裝置,更包含一 第一耦合器,耦接至該循環器與該控制單元,將該發射 訊號送入循環器與該控制單元,該控制單元係依據該反 射訊號和該發射訊號,來調整該匹配電路。 5·如申請專利範圍第4項所述之天線匹配裝置,其中該發
第15頁 1220817 六、申請專利範圍 射訊號具一第一功率,該反射訊號具一反射功率,該控 制單元依據該第一功率和該反射功率之差值,以提供該 電壓來調整該匹配電路,直到該差值接近一預設之臨界 值0 6 · —種天線匹配方法,係用於一收發機中,該收發機包括 有-匹配電路、一循環器和一控制單元,該方法包括下 列步驟: a. b· 利用該循環器獲取一反射 發機所發射之功率傳輸至 該控制单元提供一電壓給 值和一臨界值; 值’其中該反射值係為該收 匹配電路所產生; 該匹配電路並且設定一參考 變該電壓,使得該 c·依據該反射值和參考值之差值來改 差值達到該臨界值。 7·如申請專利範圍第6項所述之方 收發機所發射之功率。 >、中該參考值係為 8·如申請專利範圍第6項所述之方 最佳化之標準值。 其中該臨界值係為
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Families Citing this family (304)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7720511B1 (en) * | 2006-12-13 | 2010-05-18 | United States Of America As Represented By The Secretary Of The Navy | Self-optimizing adaptive antenna |
US20080233869A1 (en) * | 2007-03-19 | 2008-09-25 | Thomas Baker | Method and system for a single-chip fm tuning system for transmit and receive antennas |
US7983627B2 (en) * | 2007-03-30 | 2011-07-19 | Infineon Technologies Ag | Circuit arrangement with improved decoupling |
US8351874B2 (en) * | 2008-04-08 | 2013-01-08 | Telefonaktiebolaget Lm Ericsson (Publ) | System and method for adaptive antenna impedance matching |
JP5003824B2 (ja) * | 2008-12-15 | 2012-08-15 | 日本電気株式会社 | 電力検出回路、送信装置および電力検出方法 |
KR20120115402A (ko) * | 2010-02-02 | 2012-10-17 | 쿄세라 코포레이션 | 무선 통신 장치 |
US8655299B2 (en) * | 2010-06-03 | 2014-02-18 | Broadcom Corporation | Saw-less receiver with RF frequency translated BPF |
US8599726B2 (en) * | 2010-06-03 | 2013-12-03 | Broadcom Corporation | Front end module with a tunable balancing network |
KR20120012864A (ko) * | 2010-08-03 | 2012-02-13 | 삼성전자주식회사 | 격리 기능을 갖는 송수신 스위치를 구비하는 통신 단말기 및 그의 동작 방법 |
US10009065B2 (en) | 2012-12-05 | 2018-06-26 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US9113347B2 (en) | 2012-12-05 | 2015-08-18 | At&T Intellectual Property I, Lp | Backhaul link for distributed antenna system |
US20140194074A1 (en) * | 2013-01-07 | 2014-07-10 | Motorola Mobility Llc | Method and apparatus for wireless communicationdevice multiband tunable radio architecture |
US9525524B2 (en) | 2013-05-31 | 2016-12-20 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US9246524B2 (en) * | 2013-09-05 | 2016-01-26 | Zte (Usa) Inc. | Outdoor coupler unit utilizing circulator network |
US8897697B1 (en) | 2013-11-06 | 2014-11-25 | At&T Intellectual Property I, Lp | Millimeter-wave surface-wave communications |
US9209902B2 (en) | 2013-12-10 | 2015-12-08 | At&T Intellectual Property I, L.P. | Quasi-optical coupler |
WO2015146316A1 (ja) * | 2014-03-24 | 2015-10-01 | 株式会社村田製作所 | 送受信装置 |
CN105099493B (zh) * | 2014-04-25 | 2018-05-18 | 华为技术有限公司 | 射频电路和移动终端 |
US9692101B2 (en) | 2014-08-26 | 2017-06-27 | At&T Intellectual Property I, L.P. | Guided wave couplers for coupling electromagnetic waves between a waveguide surface and a surface of a wire |
US9768833B2 (en) | 2014-09-15 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves |
US9628854B2 (en) | 2014-09-29 | 2017-04-18 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing content in a communication network |
US9615269B2 (en) | 2014-10-02 | 2017-04-04 | At&T Intellectual Property I, L.P. | Method and apparatus that provides fault tolerance in a communication network |
US9685992B2 (en) | 2014-10-03 | 2017-06-20 | At&T Intellectual Property I, L.P. | Circuit panel network and methods thereof |
US9503189B2 (en) | 2014-10-10 | 2016-11-22 | At&T Intellectual Property I, L.P. | Method and apparatus for arranging communication sessions in a communication system |
TWI533229B (zh) * | 2014-10-13 | 2016-05-11 | 啟碁科技股份有限公司 | Rfid讀取器 |
US9762289B2 (en) | 2014-10-14 | 2017-09-12 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting or receiving signals in a transportation system |
US9973299B2 (en) | 2014-10-14 | 2018-05-15 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a mode of communication in a communication network |
US9627768B2 (en) | 2014-10-21 | 2017-04-18 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9653770B2 (en) | 2014-10-21 | 2017-05-16 | At&T Intellectual Property I, L.P. | Guided wave coupler, coupling module and methods for use therewith |
US9520945B2 (en) | 2014-10-21 | 2016-12-13 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
US9769020B2 (en) | 2014-10-21 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for responding to events affecting communications in a communication network |
US9564947B2 (en) | 2014-10-21 | 2017-02-07 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with diversity and methods for use therewith |
US9780834B2 (en) | 2014-10-21 | 2017-10-03 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting electromagnetic waves |
US9312919B1 (en) | 2014-10-21 | 2016-04-12 | At&T Intellectual Property I, Lp | Transmission device with impairment compensation and methods for use therewith |
US10009067B2 (en) | 2014-12-04 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for configuring a communication interface |
US10340573B2 (en) | 2016-10-26 | 2019-07-02 | At&T Intellectual Property I, L.P. | Launcher with cylindrical coupling device and methods for use therewith |
US11025460B2 (en) | 2014-11-20 | 2021-06-01 | At&T Intellectual Property I, L.P. | Methods and apparatus for accessing interstitial areas of a cable |
US10554454B2 (en) | 2014-11-20 | 2020-02-04 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing electromagnetic waves in a cable |
US10516555B2 (en) | 2014-11-20 | 2019-12-24 | At&T Intellectual Property I, L.P. | Methods and apparatus for creating interstitial areas in a cable |
US9954287B2 (en) | 2014-11-20 | 2018-04-24 | At&T Intellectual Property I, L.P. | Apparatus for converting wireless signals and electromagnetic waves and methods thereof |
US9654173B2 (en) | 2014-11-20 | 2017-05-16 | At&T Intellectual Property I, L.P. | Apparatus for powering a communication device and methods thereof |
US10505250B2 (en) | 2014-11-20 | 2019-12-10 | At&T Intellectual Property I, L.P. | Communication system having a cable with a plurality of stranded uninsulated conductors forming interstitial areas for propagating guided wave modes therein and methods of use |
US9742462B2 (en) | 2014-12-04 | 2017-08-22 | At&T Intellectual Property I, L.P. | Transmission medium and communication interfaces and methods for use therewith |
US10505249B2 (en) | 2014-11-20 | 2019-12-10 | At&T Intellectual Property I, L.P. | Communication system having a cable with a plurality of stranded uninsulated conductors forming interstitial areas for guiding electromagnetic waves therein and method of use |
US10505252B2 (en) | 2014-11-20 | 2019-12-10 | At&T Intellectual Property I, L.P. | Communication system having a coupler for guiding electromagnetic waves through interstitial areas formed by a plurality of stranded uninsulated conductors and method of use |
US10505248B2 (en) | 2014-11-20 | 2019-12-10 | At&T Intellectual Property I, L.P. | Communication cable having a plurality of uninsulated conductors forming interstitial areas for propagating electromagnetic waves therein and method of use |
US10411920B2 (en) | 2014-11-20 | 2019-09-10 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing electromagnetic waves within pathways of a cable |
US9997819B2 (en) | 2015-06-09 | 2018-06-12 | At&T Intellectual Property I, L.P. | Transmission medium and method for facilitating propagation of electromagnetic waves via a core |
US9461706B1 (en) | 2015-07-31 | 2016-10-04 | At&T Intellectual Property I, Lp | Method and apparatus for exchanging communication signals |
US9544006B2 (en) | 2014-11-20 | 2017-01-10 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
US10243784B2 (en) | 2014-11-20 | 2019-03-26 | At&T Intellectual Property I, L.P. | System for generating topology information and methods thereof |
US10144036B2 (en) | 2015-01-30 | 2018-12-04 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium |
US9876570B2 (en) | 2015-02-20 | 2018-01-23 | At&T Intellectual Property I, Lp | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9749013B2 (en) | 2015-03-17 | 2017-08-29 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium |
US10224981B2 (en) | 2015-04-24 | 2019-03-05 | At&T Intellectual Property I, Lp | Passive electrical coupling device and methods for use therewith |
US9705561B2 (en) | 2015-04-24 | 2017-07-11 | At&T Intellectual Property I, L.P. | Directional coupling device and methods for use therewith |
US9793954B2 (en) | 2015-04-28 | 2017-10-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device and methods for use therewith |
US9948354B2 (en) | 2015-04-28 | 2018-04-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device with reflective plate and methods for use therewith |
US9871282B2 (en) | 2015-05-14 | 2018-01-16 | At&T Intellectual Property I, L.P. | At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric |
US10276907B2 (en) | 2015-05-14 | 2019-04-30 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
US9748626B2 (en) | 2015-05-14 | 2017-08-29 | At&T Intellectual Property I, L.P. | Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium |
US10714803B2 (en) | 2015-05-14 | 2020-07-14 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
US10679767B2 (en) | 2015-05-15 | 2020-06-09 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
US10650940B2 (en) | 2015-05-15 | 2020-05-12 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
US9917341B2 (en) | 2015-05-27 | 2018-03-13 | At&T Intellectual Property I, L.P. | Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves |
US9912381B2 (en) | 2015-06-03 | 2018-03-06 | At&T Intellectual Property I, Lp | Network termination and methods for use therewith |
US10348391B2 (en) | 2015-06-03 | 2019-07-09 | At&T Intellectual Property I, L.P. | Client node device with frequency conversion and methods for use therewith |
US10103801B2 (en) | 2015-06-03 | 2018-10-16 | At&T Intellectual Property I, L.P. | Host node device and methods for use therewith |
US9866309B2 (en) | 2015-06-03 | 2018-01-09 | At&T Intellectual Property I, Lp | Host node device and methods for use therewith |
US10756805B2 (en) | 2015-06-03 | 2020-08-25 | At&T Intellectual Property I, L.P. | Client node device with frequency conversion and methods for use therewith |
US10154493B2 (en) | 2015-06-03 | 2018-12-11 | At&T Intellectual Property I, L.P. | Network termination and methods for use therewith |
US10812174B2 (en) | 2015-06-03 | 2020-10-20 | At&T Intellectual Property I, L.P. | Client node device and methods for use therewith |
US9913139B2 (en) | 2015-06-09 | 2018-03-06 | At&T Intellectual Property I, L.P. | Signal fingerprinting for authentication of communicating devices |
US9608692B2 (en) | 2015-06-11 | 2017-03-28 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US10142086B2 (en) | 2015-06-11 | 2018-11-27 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US9667317B2 (en) | 2015-06-15 | 2017-05-30 | At&T Intellectual Property I, L.P. | Method and apparatus for providing security using network traffic adjustments |
US9865911B2 (en) | 2015-06-25 | 2018-01-09 | At&T Intellectual Property I, L.P. | Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium |
US9509415B1 (en) | 2015-06-25 | 2016-11-29 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a fundamental wave mode on a transmission medium |
US9640850B2 (en) | 2015-06-25 | 2017-05-02 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium |
US10790593B2 (en) | 2015-07-14 | 2020-09-29 | At&T Intellectual Property I, L.P. | Method and apparatus including an antenna comprising a lens and a body coupled to a feedline having a structure that reduces reflections of electromagnetic waves |
US10320586B2 (en) | 2015-07-14 | 2019-06-11 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an insulated transmission medium |
US10044409B2 (en) | 2015-07-14 | 2018-08-07 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
US10148016B2 (en) | 2015-07-14 | 2018-12-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array |
US10129057B2 (en) | 2015-07-14 | 2018-11-13 | At&T Intellectual Property I, L.P. | Apparatus and methods for inducing electromagnetic waves on a cable |
US10205655B2 (en) | 2015-07-14 | 2019-02-12 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array and multiple communication paths |
US10170840B2 (en) | 2015-07-14 | 2019-01-01 | At&T Intellectual Property I, L.P. | Apparatus and methods for sending or receiving electromagnetic signals |
US10742243B2 (en) | 2015-07-14 | 2020-08-11 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US10511346B2 (en) | 2015-07-14 | 2019-12-17 | At&T Intellectual Property I, L.P. | Apparatus and methods for inducing electromagnetic waves on an uninsulated conductor |
US9628116B2 (en) | 2015-07-14 | 2017-04-18 | At&T Intellectual Property I, L.P. | Apparatus and methods for transmitting wireless signals |
US10033108B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave having a wave mode that mitigates interference |
US9722318B2 (en) | 2015-07-14 | 2017-08-01 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US10341142B2 (en) | 2015-07-14 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an uninsulated conductor |
US10033107B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US9882257B2 (en) | 2015-07-14 | 2018-01-30 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US10439290B2 (en) | 2015-07-14 | 2019-10-08 | At&T Intellectual Property I, L.P. | Apparatus and methods for wireless communications |
US9847566B2 (en) | 2015-07-14 | 2017-12-19 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a field of a signal to mitigate interference |
US9608740B2 (en) | 2015-07-15 | 2017-03-28 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US10090606B2 (en) | 2015-07-15 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system with dielectric array and methods for use therewith |
US9871283B2 (en) | 2015-07-23 | 2018-01-16 | At&T Intellectual Property I, Lp | Transmission medium having a dielectric core comprised of plural members connected by a ball and socket configuration |
US9749053B2 (en) | 2015-07-23 | 2017-08-29 | At&T Intellectual Property I, L.P. | Node device, repeater and methods for use therewith |
US10784670B2 (en) | 2015-07-23 | 2020-09-22 | At&T Intellectual Property I, L.P. | Antenna support for aligning an antenna |
US9735833B2 (en) | 2015-07-31 | 2017-08-15 | At&T Intellectual Property I, L.P. | Method and apparatus for communications management in a neighborhood network |
US10020587B2 (en) | 2015-07-31 | 2018-07-10 | At&T Intellectual Property I, L.P. | Radial antenna and methods for use therewith |
US9967173B2 (en) | 2015-07-31 | 2018-05-08 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US9904535B2 (en) | 2015-09-14 | 2018-02-27 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing software |
US10079661B2 (en) | 2015-09-16 | 2018-09-18 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a clock reference |
US10136434B2 (en) | 2015-09-16 | 2018-11-20 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel |
US10009901B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method, apparatus, and computer-readable storage medium for managing utilization of wireless resources between base stations |
US10009063B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an out-of-band reference signal |
US10051629B2 (en) | 2015-09-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an in-band reference signal |
US9769128B2 (en) | 2015-09-28 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for encryption of communications over a network |
US9882277B2 (en) | 2015-10-02 | 2018-01-30 | At&T Intellectual Property I, Lp | Communication device and antenna assembly with actuated gimbal mount |
US9876264B2 (en) | 2015-10-02 | 2018-01-23 | At&T Intellectual Property I, Lp | Communication system, guided wave switch and methods for use therewith |
US10355367B2 (en) | 2015-10-16 | 2019-07-16 | At&T Intellectual Property I, L.P. | Antenna structure for exchanging wireless signals |
US10051483B2 (en) | 2015-10-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for directing wireless signals |
US10665942B2 (en) | 2015-10-16 | 2020-05-26 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting wireless communications |
US9912419B1 (en) | 2016-08-24 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for managing a fault in a distributed antenna system |
US9860075B1 (en) | 2016-08-26 | 2018-01-02 | At&T Intellectual Property I, L.P. | Method and communication node for broadband distribution |
US10291311B2 (en) | 2016-09-09 | 2019-05-14 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating a fault in a distributed antenna system |
US11032819B2 (en) | 2016-09-15 | 2021-06-08 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a control channel reference signal |
US10340600B2 (en) | 2016-10-18 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via plural waveguide systems |
US10135146B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via circuits |
US10811767B2 (en) | 2016-10-21 | 2020-10-20 | At&T Intellectual Property I, L.P. | System and dielectric antenna with convex dielectric radome |
US10374316B2 (en) | 2016-10-21 | 2019-08-06 | At&T Intellectual Property I, L.P. | System and dielectric antenna with non-uniform dielectric |
US9991580B2 (en) | 2016-10-21 | 2018-06-05 | At&T Intellectual Property I, L.P. | Launcher and coupling system for guided wave mode cancellation |
US9876605B1 (en) | 2016-10-21 | 2018-01-23 | At&T Intellectual Property I, L.P. | Launcher and coupling system to support desired guided wave mode |
US10312567B2 (en) | 2016-10-26 | 2019-06-04 | At&T Intellectual Property I, L.P. | Launcher with planar strip antenna and methods for use therewith |
US10498044B2 (en) | 2016-11-03 | 2019-12-03 | At&T Intellectual Property I, L.P. | Apparatus for configuring a surface of an antenna |
US10224634B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Methods and apparatus for adjusting an operational characteristic of an antenna |
US10291334B2 (en) | 2016-11-03 | 2019-05-14 | At&T Intellectual Property I, L.P. | System for detecting a fault in a communication system |
US10225025B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Method and apparatus for detecting a fault in a communication system |
US10340601B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Multi-antenna system and methods for use therewith |
US10535928B2 (en) | 2016-11-23 | 2020-01-14 | At&T Intellectual Property I, L.P. | Antenna system and methods for use therewith |
US10340603B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Antenna system having shielded structural configurations for assembly |
US10178445B2 (en) | 2016-11-23 | 2019-01-08 | At&T Intellectual Property I, L.P. | Methods, devices, and systems for load balancing between a plurality of waveguides |
US10305190B2 (en) | 2016-12-01 | 2019-05-28 | At&T Intellectual Property I, L.P. | Reflecting dielectric antenna system and methods for use therewith |
US10361489B2 (en) | 2016-12-01 | 2019-07-23 | At&T Intellectual Property I, L.P. | Dielectric dish antenna system and methods for use therewith |
US10727599B2 (en) | 2016-12-06 | 2020-07-28 | At&T Intellectual Property I, L.P. | Launcher with slot antenna and methods for use therewith |
US10326494B2 (en) | 2016-12-06 | 2019-06-18 | At&T Intellectual Property I, L.P. | Apparatus for measurement de-embedding and methods for use therewith |
US10694379B2 (en) | 2016-12-06 | 2020-06-23 | At&T Intellectual Property I, L.P. | Waveguide system with device-based authentication and methods for use therewith |
US10205212B2 (en) | 2016-12-06 | 2019-02-12 | At&T Intellectual Property I, L.P. | Methods and apparatus for adjusting a phase of electromagnetic waves |
US10755542B2 (en) | 2016-12-06 | 2020-08-25 | At&T Intellectual Property I, L.P. | Method and apparatus for surveillance via guided wave communication |
US10020844B2 (en) | 2016-12-06 | 2018-07-10 | T&T Intellectual Property I, L.P. | Method and apparatus for broadcast communication via guided waves |
US10637149B2 (en) | 2016-12-06 | 2020-04-28 | At&T Intellectual Property I, L.P. | Injection molded dielectric antenna and methods for use therewith |
US10819035B2 (en) | 2016-12-06 | 2020-10-27 | At&T Intellectual Property I, L.P. | Launcher with helical antenna and methods for use therewith |
US10135145B2 (en) | 2016-12-06 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave along a transmission medium |
US10096883B2 (en) | 2016-12-06 | 2018-10-09 | At&T Intellectual Property I, L.P. | Methods and apparatus for adjusting a wavelength electromagnetic waves |
US10439675B2 (en) | 2016-12-06 | 2019-10-08 | At&T Intellectual Property I, L.P. | Method and apparatus for repeating guided wave communication signals |
US10382976B2 (en) | 2016-12-06 | 2019-08-13 | At&T Intellectual Property I, L.P. | Method and apparatus for managing wireless communications based on communication paths and network device positions |
US9927517B1 (en) | 2016-12-06 | 2018-03-27 | At&T Intellectual Property I, L.P. | Apparatus and methods for sensing rainfall |
US9893795B1 (en) | 2016-12-07 | 2018-02-13 | At&T Intellectual Property I, Lp | Method and repeater for broadband distribution |
US10389029B2 (en) | 2016-12-07 | 2019-08-20 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system with core selection and methods for use therewith |
US10446936B2 (en) | 2016-12-07 | 2019-10-15 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system and methods for use therewith |
US10027397B2 (en) | 2016-12-07 | 2018-07-17 | At&T Intellectual Property I, L.P. | Distributed antenna system and methods for use therewith |
US10243270B2 (en) | 2016-12-07 | 2019-03-26 | At&T Intellectual Property I, L.P. | Beam adaptive multi-feed dielectric antenna system and methods for use therewith |
US10139820B2 (en) | 2016-12-07 | 2018-11-27 | At&T Intellectual Property I, L.P. | Method and apparatus for deploying equipment of a communication system |
US10547348B2 (en) | 2016-12-07 | 2020-01-28 | At&T Intellectual Property I, L.P. | Method and apparatus for switching transmission mediums in a communication system |
US10359749B2 (en) | 2016-12-07 | 2019-07-23 | At&T Intellectual Property I, L.P. | Method and apparatus for utilities management via guided wave communication |
US10530505B2 (en) | 2016-12-08 | 2020-01-07 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves along a transmission medium |
US10916969B2 (en) | 2016-12-08 | 2021-02-09 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power using an inductive coupling |
US10326689B2 (en) | 2016-12-08 | 2019-06-18 | At&T Intellectual Property I, L.P. | Method and system for providing alternative communication paths |
US10264467B2 (en) | 2016-12-08 | 2019-04-16 | At&T Intellectual Property I, L.P. | Method and apparatus for collecting data associated with wireless communications |
US10136255B2 (en) | 2016-12-08 | 2018-11-20 | At&T Intellectual Property I, L.P. | Method and apparatus for proximity sensing on a communication device |
US10069535B2 (en) | 2016-12-08 | 2018-09-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves having a certain electric field structure |
US9998870B1 (en) | 2016-12-08 | 2018-06-12 | At&T Intellectual Property I, L.P. | Method and apparatus for proximity sensing |
US10938108B2 (en) | 2016-12-08 | 2021-03-02 | At&T Intellectual Property I, L.P. | Frequency selective multi-feed dielectric antenna system and methods for use therewith |
US10389037B2 (en) | 2016-12-08 | 2019-08-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for selecting sections of an antenna array and use therewith |
US10411356B2 (en) | 2016-12-08 | 2019-09-10 | At&T Intellectual Property I, L.P. | Apparatus and methods for selectively targeting communication devices with an antenna array |
US10777873B2 (en) | 2016-12-08 | 2020-09-15 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
US10601494B2 (en) | 2016-12-08 | 2020-03-24 | At&T Intellectual Property I, L.P. | Dual-band communication device and method for use therewith |
US10340983B2 (en) | 2016-12-09 | 2019-07-02 | At&T Intellectual Property I, L.P. | Method and apparatus for surveying remote sites via guided wave communications |
US10264586B2 (en) | 2016-12-09 | 2019-04-16 | At&T Mobility Ii Llc | Cloud-based packet controller and methods for use therewith |
US10110274B2 (en) | 2017-01-27 | 2018-10-23 | At&T Intellectual Property I, L.P. | Method and apparatus of communication utilizing waveguide and wireless devices |
US9973940B1 (en) * | 2017-02-27 | 2018-05-15 | At&T Intellectual Property I, L.P. | Apparatus and methods for dynamic impedance matching of a guided wave launcher |
US10298293B2 (en) | 2017-03-13 | 2019-05-21 | At&T Intellectual Property I, L.P. | Apparatus of communication utilizing wireless network devices |
US10097241B1 (en) | 2017-04-11 | 2018-10-09 | At&T Intellectual Property I, L.P. | Machine assisted development of deployment site inventory |
US10523388B2 (en) | 2017-04-17 | 2019-12-31 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna having a fiber optic link |
US10468744B2 (en) | 2017-05-11 | 2019-11-05 | At&T Intellectual Property I, L.P. | Method and apparatus for assembly and installation of a communication device |
US10630341B2 (en) | 2017-05-11 | 2020-04-21 | At&T Intellectual Property I, L.P. | Method and apparatus for installation and alignment of radio devices |
US10419072B2 (en) | 2017-05-11 | 2019-09-17 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting and coupling radio devices |
US10103777B1 (en) | 2017-07-05 | 2018-10-16 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing radiation from an external surface of a waveguide structure |
US10389403B2 (en) | 2017-07-05 | 2019-08-20 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing flow of currents on an outer surface of a structure |
US10727583B2 (en) | 2017-07-05 | 2020-07-28 | At&T Intellectual Property I, L.P. | Method and apparatus for steering radiation on an outer surface of a structure |
US10374278B2 (en) | 2017-09-05 | 2019-08-06 | At&T Intellectual Property I, L.P. | Dielectric coupling system with mode control and methods for use therewith |
US10374277B2 (en) | 2017-09-05 | 2019-08-06 | At&T Intellectual Property I, L.P. | Multi-arm dielectric coupling system and methods for use therewith |
US10446899B2 (en) | 2017-09-05 | 2019-10-15 | At&T Intellectual Property I, L.P. | Flared dielectric coupling system and methods for use therewith |
US10062970B1 (en) | 2017-09-05 | 2018-08-28 | At&T Intellectual Property I, L.P. | Dual mode communications device and methods for use therewith |
US10051488B1 (en) | 2017-10-19 | 2018-08-14 | At&T Intellectual Property I, L.P. | Dual mode communications device with remote device feedback and methods for use therewith |
US10244408B1 (en) | 2017-10-19 | 2019-03-26 | At&T Intellectual Property I, L.P. | Dual mode communications device with null steering and methods for use therewith |
US10714831B2 (en) | 2017-10-19 | 2020-07-14 | At&T Intellectual Property I, L.P. | Dual mode communications device with remote radio head and methods for use therewith |
US10205231B1 (en) | 2017-09-06 | 2019-02-12 | At&T Intellectual Property I, L.P. | Antenna structure with hollow-boresight antenna beam |
US10291286B2 (en) | 2017-09-06 | 2019-05-14 | At&T Intellectual Property I, L.P. | Method and apparatus for guiding an electromagnetic wave to a transmission medium |
US10305197B2 (en) | 2017-09-06 | 2019-05-28 | At&T Intellectual Property I, L.P. | Multimode antenna system and methods for use therewith |
US10608312B2 (en) | 2017-09-06 | 2020-03-31 | At&T Intellectual Property I, L.P. | Method and apparatus for generating an electromagnetic wave that couples onto a transmission medium |
US10673116B2 (en) | 2017-09-06 | 2020-06-02 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an electromagnetic wave to a transmission medium |
US10305179B2 (en) | 2017-09-06 | 2019-05-28 | At&T Intellectual Property I, L.P. | Antenna structure with doped antenna body |
US10230426B1 (en) | 2017-09-06 | 2019-03-12 | At&T Intellectual Property I, L.P. | Antenna structure with circularly polarized antenna beam |
US10469228B2 (en) | 2017-09-12 | 2019-11-05 | At&T Intellectual Property I, L.P. | Apparatus and methods for exchanging communications signals |
US9998172B1 (en) | 2017-10-04 | 2018-06-12 | At&T Intellectual Property I, L.P. | Apparatus and methods for processing ultra-wideband electromagnetic waves |
US10123217B1 (en) | 2017-10-04 | 2018-11-06 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating with ultra-wideband electromagnetic waves |
US10764762B2 (en) | 2017-10-04 | 2020-09-01 | At&T Intellectual Property I, L.P. | Apparatus and methods for distributing a communication signal obtained from ultra-wideband electromagnetic waves |
US10498589B2 (en) | 2017-10-04 | 2019-12-03 | At&T Intellectual Property I, L.P. | Apparatus and methods for mitigating a fault that adversely affects ultra-wideband transmissions |
US10454151B2 (en) | 2017-10-17 | 2019-10-22 | At&T Intellectual Property I, L.P. | Methods and apparatus for coupling an electromagnetic wave onto a transmission medium |
US10763916B2 (en) | 2017-10-19 | 2020-09-01 | At&T Intellectual Property I, L.P. | Dual mode antenna systems and methods for use therewith |
US10553959B2 (en) | 2017-10-26 | 2020-02-04 | At&T Intellectual Property I, L.P. | Antenna system with planar antenna and directors and methods for use therewith |
US10553960B2 (en) | 2017-10-26 | 2020-02-04 | At&T Intellectual Property I, L.P. | Antenna system with planar antenna and methods for use therewith |
US10554235B2 (en) | 2017-11-06 | 2020-02-04 | At&T Intellectual Property I, L.P. | Multi-input multi-output guided wave system and methods for use therewith |
US10003364B1 (en) | 2017-11-09 | 2018-06-19 | At&T Intellectual Property I, L.P. | Guided wave communication system with interference cancellation and methods for use therewith |
US10555318B2 (en) | 2017-11-09 | 2020-02-04 | At&T Intellectual Property I, L.P. | Guided wave communication system with resource allocation and methods for use therewith |
US10355745B2 (en) | 2017-11-09 | 2019-07-16 | At&T Intellectual Property I, L.P. | Guided wave communication system with interference mitigation and methods for use therewith |
US10230428B1 (en) | 2017-11-15 | 2019-03-12 | At&T Intellectual Property I, L.P. | Access point and methods for use in a radio distributed antenna system |
US10555249B2 (en) | 2017-11-15 | 2020-02-04 | At&T Intellectual Property I, L.P. | Access point and methods for communicating resource blocks with guided electromagnetic waves |
US10284261B1 (en) | 2017-11-15 | 2019-05-07 | At&T Intellectual Property I, L.P. | Access point and methods for communicating with guided electromagnetic waves |
US10469192B2 (en) | 2017-12-01 | 2019-11-05 | At&T Intellectual Property I, L.P. | Methods and apparatus for controllable coupling of an electromagnetic wave |
US10389419B2 (en) | 2017-12-01 | 2019-08-20 | At&T Intellectual Property I, L.P. | Methods and apparatus for generating and receiving electromagnetic waves |
US10374281B2 (en) | 2017-12-01 | 2019-08-06 | At&T Intellectual Property I, L.P. | Apparatus and method for guided wave communications using an absorber |
US10820329B2 (en) | 2017-12-04 | 2020-10-27 | At&T Intellectual Property I, L.P. | Guided wave communication system with interference mitigation and methods for use therewith |
US10424845B2 (en) | 2017-12-06 | 2019-09-24 | At&T Intellectual Property I, L.P. | Method and apparatus for communication using variable permittivity polyrod antenna |
US10680308B2 (en) | 2017-12-07 | 2020-06-09 | At&T Intellectual Property I, L.P. | Methods and apparatus for bidirectional exchange of electromagnetic waves |
US11018525B2 (en) | 2017-12-07 | 2021-05-25 | At&T Intellectual Property 1, L.P. | Methods and apparatus for increasing a transfer of energy in an inductive power supply |
US10531357B2 (en) | 2018-03-26 | 2020-01-07 | At&T Intellectual Property I, L.P. | Processing of data channels provided in electromagnetic waves by an access point and methods thereof |
US10340979B1 (en) | 2018-03-26 | 2019-07-02 | At&T Intellectual Property I, L.P. | Surface wave communication system and methods for use therewith |
US10200106B1 (en) | 2018-03-26 | 2019-02-05 | At&T Intellectual Property I, L.P. | Analog surface wave multipoint repeater and methods for use therewith |
US10326495B1 (en) | 2018-03-26 | 2019-06-18 | At&T Intellectual Property I, L.P. | Coaxial surface wave communication system and methods for use therewith |
US10714824B2 (en) | 2018-03-26 | 2020-07-14 | At&T Intellectual Property I, L.P. | Planar surface wave launcher and methods for use therewith |
US10171158B1 (en) | 2018-03-26 | 2019-01-01 | At&T Intellectual Property I, L.P. | Analog surface wave repeater pair and methods for use therewith |
US10727577B2 (en) | 2018-03-29 | 2020-07-28 | At&T Intellectual Property I, L.P. | Exchange of wireless signals guided by a transmission medium and methods thereof |
US10581275B2 (en) | 2018-03-30 | 2020-03-03 | At&T Intellectual Property I, L.P. | Methods and apparatus for regulating a magnetic flux in an inductive power supply |
US10547545B2 (en) | 2018-03-30 | 2020-01-28 | At&T Intellectual Property I, L.P. | Method and apparatus for switching of data channels provided in electromagnetic waves |
US10419074B1 (en) | 2018-05-16 | 2019-09-17 | At&T Intellectual Property I, L.P. | Method and apparatus for communications using electromagnetic waves and an insulator |
US10804962B2 (en) | 2018-07-09 | 2020-10-13 | At&T Intellectual Property I, L.P. | Method and apparatus for communications using electromagnetic waves |
US10305192B1 (en) * | 2018-08-13 | 2019-05-28 | At&T Intellectual Property I, L.P. | System and method for launching guided electromagnetic waves with impedance matching |
US10629995B2 (en) | 2018-08-13 | 2020-04-21 | At&T Intellectual Property I, L.P. | Guided wave launcher with aperture control and methods for use therewith |
US10749570B2 (en) | 2018-09-05 | 2020-08-18 | At&T Intellectual Property I, L.P. | Surface wave launcher and methods for use therewith |
US10784721B2 (en) | 2018-09-11 | 2020-09-22 | At&T Intellectual Property I, L.P. | Methods and apparatus for coupling and decoupling portions of a magnetic core |
US10778286B2 (en) | 2018-09-12 | 2020-09-15 | At&T Intellectual Property I, L.P. | Methods and apparatus for transmitting or receiving electromagnetic waves |
US10405199B1 (en) | 2018-09-12 | 2019-09-03 | At&T Intellectual Property I, L.P. | Apparatus and methods for transmitting or receiving electromagnetic waves |
US10833727B2 (en) | 2018-10-02 | 2020-11-10 | At&T Intellectual Property I, L.P. | Methods and apparatus for launching or receiving electromagnetic waves |
US10587310B1 (en) | 2018-10-10 | 2020-03-10 | At&T Intellectual Property I, L.P. | Methods and apparatus for selectively controlling energy consumption of a waveguide system |
US10693667B2 (en) | 2018-10-12 | 2020-06-23 | At&T Intellectual Property I, L.P. | Methods and apparatus for exchanging communication signals via a cable of twisted pair wires |
US10516197B1 (en) | 2018-10-18 | 2019-12-24 | At&T Intellectual Property I, L.P. | System and method for launching scattering electromagnetic waves |
US10957977B2 (en) | 2018-11-14 | 2021-03-23 | At&T Intellectual Property I, L.P. | Device with virtual reflector for transmitting or receiving electromagnetic waves |
US10505584B1 (en) | 2018-11-14 | 2019-12-10 | At&T Intellectual Property I, L.P. | Device with resonant cavity for transmitting or receiving electromagnetic waves |
US10931012B2 (en) | 2018-11-14 | 2021-02-23 | At&T Intellectual Property I, L.P. | Device with programmable reflector for transmitting or receiving electromagnetic waves |
US10523269B1 (en) | 2018-11-14 | 2019-12-31 | At&T Intellectual Property I, L.P. | Device with configurable reflector for transmitting or receiving electromagnetic waves |
US10686649B2 (en) | 2018-11-16 | 2020-06-16 | At&T Intellectual Property I, L.P. | Method and apparatus for managing a local area network |
US10812139B2 (en) | 2018-11-29 | 2020-10-20 | At&T Intellectual Property I, L.P. | Method and apparatus for communication utilizing electromagnetic waves and a telecommunication line |
US10965344B2 (en) | 2018-11-29 | 2021-03-30 | At&T Intellectual Property 1, L.P. | Methods and apparatus for exchanging wireless signals utilizing electromagnetic waves having differing characteristics |
US11082091B2 (en) | 2018-11-29 | 2021-08-03 | At&T Intellectual Property I, L.P. | Method and apparatus for communication utilizing electromagnetic waves and a power line |
US10623033B1 (en) | 2018-11-29 | 2020-04-14 | At&T Intellectual Property I, L.P. | Methods and apparatus to reduce distortion between electromagnetic wave transmissions |
US10371889B1 (en) | 2018-11-29 | 2019-08-06 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power to waveguide systems |
US10727955B2 (en) | 2018-11-29 | 2020-07-28 | At&T Intellectual Property I, L.P. | Method and apparatus for power delivery to waveguide systems |
US11283182B2 (en) | 2018-12-03 | 2022-03-22 | At&T Intellectual Property I, L.P. | Guided wave launcher with lens and methods for use therewith |
US10785125B2 (en) | 2018-12-03 | 2020-09-22 | At&T Intellectual Property I, L.P. | Method and procedure for generating reputation scores for IoT devices based on distributed analysis |
US10819391B2 (en) | 2018-12-03 | 2020-10-27 | At&T Intellectual Property I, L.P. | Guided wave launcher with reflector and methods for use therewith |
US11171960B2 (en) | 2018-12-03 | 2021-11-09 | At&T Intellectual Property I, L.P. | Network security management based on collection and cataloging of network-accessible device information |
US10623057B1 (en) | 2018-12-03 | 2020-04-14 | At&T Intellectual Property I, L.P. | Guided wave directional coupler and methods for use therewith |
US10978773B2 (en) | 2018-12-03 | 2021-04-13 | At&T Intellectual Property I, L.P. | Guided wave dielectric coupler having a dielectric cable with an exposed dielectric core position for enabling electromagnetic coupling between the cable and a transmission medium |
US10623056B1 (en) | 2018-12-03 | 2020-04-14 | At&T Intellectual Property I, L.P. | Guided wave splitter and methods for use therewith |
US11205857B2 (en) | 2018-12-04 | 2021-12-21 | At&T Intellectual Property I, L.P. | System and method for launching guided electromagnetic waves with channel feedback |
US11362438B2 (en) | 2018-12-04 | 2022-06-14 | At&T Intellectual Property I, L.P. | Configurable guided wave launcher and methods for use therewith |
US11121466B2 (en) | 2018-12-04 | 2021-09-14 | At&T Intellectual Property I, L.P. | Antenna system with dielectric antenna and methods for use therewith |
US11394122B2 (en) | 2018-12-04 | 2022-07-19 | At&T Intellectual Property I, L.P. | Conical surface wave launcher and methods for use therewith |
US10977932B2 (en) | 2018-12-04 | 2021-04-13 | At&T Intellectual Property I, L.P. | Method and apparatus for electromagnetic wave communications associated with vehicular traffic |
US10581522B1 (en) | 2018-12-06 | 2020-03-03 | At&T Intellectual Property I, L.P. | Free-space, twisted light optical communication system |
US10637535B1 (en) | 2018-12-10 | 2020-04-28 | At&T Intellectual Property I, L.P. | Methods and apparatus to receive electromagnetic wave transmissions |
US10790569B2 (en) | 2018-12-12 | 2020-09-29 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating interference in a waveguide communication system |
US10812142B2 (en) | 2018-12-13 | 2020-10-20 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating thermal stress in a waveguide communication system |
US10666323B1 (en) | 2018-12-13 | 2020-05-26 | At&T Intellectual Property I, L.P. | Methods and apparatus for monitoring conditions to switch between modes of transmission |
US10812143B2 (en) | 2018-12-13 | 2020-10-20 | At&T Intellectual Property I, L.P. | Surface wave repeater with temperature control and methods for use therewith |
US10469156B1 (en) | 2018-12-13 | 2019-11-05 | At&T Intellectual Property I, L.P. | Methods and apparatus for measuring a signal to switch between modes of transmission |
US11025299B2 (en) | 2019-05-15 | 2021-06-01 | At&T Intellectual Property I, L.P. | Methods and apparatus for launching and receiving electromagnetic waves |
US10812136B1 (en) | 2019-12-02 | 2020-10-20 | At&T Intellectual Property I, L.P. | Surface wave repeater with controllable isolator and methods for use therewith |
US10886589B1 (en) | 2019-12-02 | 2021-01-05 | At&T Intellectual Property I, L.P. | Guided wave coupling system for telephony cable messenger wire and methods for use therewith |
US11283177B2 (en) | 2019-12-02 | 2022-03-22 | At&T Intellectual Property I, L.P. | Surface wave transmission device with RF housing and methods for use therewith |
US10951265B1 (en) | 2019-12-02 | 2021-03-16 | At&T Intellectual Property I, L.P. | Surface wave repeater with cancellation and methods for use therewith |
US11070250B2 (en) | 2019-12-03 | 2021-07-20 | At&T Intellectual Property I, L.P. | Method and apparatus for calibrating waveguide systems to manage propagation delays of electromagnetic waves |
US10930992B1 (en) | 2019-12-03 | 2021-02-23 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating between waveguide systems |
US10812144B1 (en) | 2019-12-03 | 2020-10-20 | At&T Intellectual Property I, L.P. | Surface wave repeater and methods for use therewith |
US11277159B2 (en) | 2019-12-03 | 2022-03-15 | At&T Intellectual Property I, L.P. | Method and apparatus for managing propagation delays of electromagnetic waves |
US11502724B2 (en) | 2019-12-03 | 2022-11-15 | At&T Intellectual Property I, L.P. | Method and apparatus for transitioning between electromagnetic wave modes |
US10951266B1 (en) | 2019-12-03 | 2021-03-16 | At&T Intellectual Property I, L.P. | Guided wave coupling system for telephony cable wrap wire and methods for use therewith |
US11387560B2 (en) | 2019-12-03 | 2022-07-12 | At&T Intellectual Property I, L.P. | Impedance matched launcher with cylindrical coupling device and methods for use therewith |
US10812291B1 (en) | 2019-12-03 | 2020-10-20 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating between a waveguide system and a base station device |
US10833730B1 (en) | 2019-12-03 | 2020-11-10 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power to a waveguide system |
US10951267B1 (en) | 2019-12-04 | 2021-03-16 | At&T Intellectual Property I, L.P. | Method and apparatus for adapting a waveguide to properties of a physical transmission medium |
US10804959B1 (en) | 2019-12-04 | 2020-10-13 | At&T Intellectual Property I, L.P. | Transmission device with corona discharge mitigation and methods for use therewith |
US11223098B2 (en) | 2019-12-04 | 2022-01-11 | At&T Intellectual Property I, L.P. | Waveguide system comprising a scattering device for generating a second non-fundamental wave mode from a first non-fundamental wave mode |
US11356208B2 (en) | 2019-12-04 | 2022-06-07 | At&T Intellectual Property I, L.P. | Transmission device with hybrid ARQ and methods for use therewith |
US10992343B1 (en) | 2019-12-04 | 2021-04-27 | At&T Intellectual Property I, L.P. | Guided electromagnetic wave communications via an underground cable |
US11063334B2 (en) | 2019-12-05 | 2021-07-13 | At&T Intellectual Property I, L.P. | Method and apparatus having one or more adjustable structures for launching or receiving electromagnetic waves having a desired wavemode |
US11581917B2 (en) | 2019-12-05 | 2023-02-14 | At&T Intellectual Property I, L.P. | Method and apparatus adapted to a characteristic of an outer surface of a transmission medium for launching or receiving electromagnetic waves |
US10812123B1 (en) | 2019-12-05 | 2020-10-20 | At&T Intellectual Property I, L.P. | Magnetic coupler for launching and receiving electromagnetic waves and methods thereof |
US11031667B1 (en) | 2019-12-05 | 2021-06-08 | At&T Intellectual Property I, L.P. | Method and apparatus having an adjustable structure positioned along a transmission medium for launching or receiving electromagnetic waves having a desired wavemode |
US11356143B2 (en) | 2019-12-10 | 2022-06-07 | At&T Intellectual Property I, L.P. | Waveguide system with power stabilization and methods for use therewith |
CN111245453A (zh) * | 2020-01-16 | 2020-06-05 | 惠州Tcl移动通信有限公司 | 射频结构及移动终端 |
US11201753B1 (en) | 2020-06-12 | 2021-12-14 | At&T Intellectual Property I, L.P. | Method and apparatus for managing power being provided to a waveguide system |
CN112003610B (zh) * | 2020-08-13 | 2024-07-23 | 上海联影医疗科技股份有限公司 | 基于自动频率控制模块的控制装置及方法、放射治疗设备 |
US11171764B1 (en) | 2020-08-21 | 2021-11-09 | At&T Intellectual Property I, L.P. | Method and apparatus for automatically retransmitting corrupted data |
US11671926B2 (en) | 2021-03-17 | 2023-06-06 | At&T Intellectual Property I, L.P. | Methods and apparatuses for facilitating signaling and power in a communication system |
US11533079B2 (en) | 2021-03-17 | 2022-12-20 | At&T Intellectual Property I, L.P. | Methods and apparatuses for facilitating guided wave communications with an enhanced flexibility in parameters |
US11569868B2 (en) | 2021-03-17 | 2023-01-31 | At&T Intellectual Property I, L.P. | Apparatuses and methods for enhancing a reliability of power available to communicaton devices via an insulator |
US11456771B1 (en) | 2021-03-17 | 2022-09-27 | At&T Intellectual Property I, L.P. | Apparatuses and methods for facilitating a conveyance of status in communication systems and networks |
US11664883B2 (en) | 2021-04-06 | 2023-05-30 | At&T Intellectual Property I, L.P. | Time domain duplexing repeater using envelope detection |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5815803A (en) * | 1996-03-08 | 1998-09-29 | The United States Of America As Represented By The Secretary Of The Navy | Wideband high isolation circulatior network |
JPH09331206A (ja) * | 1996-06-12 | 1997-12-22 | Saitama Nippon Denki Kk | Tdma方式用携帯電話機のアンテナ整合部 |
US6567647B1 (en) * | 1998-03-26 | 2003-05-20 | Ericsson Inc. | Low noise radio frequency transceivers including circulators |
JP3189794B2 (ja) * | 1998-07-27 | 2001-07-16 | 日本電気株式会社 | 無線送受信装置と送信スプリアス防止方法 |
KR100358444B1 (ko) * | 1999-07-27 | 2002-10-25 | 엘지전자 주식회사 | 휴대 무선 전화기의 안테나 매칭 장치 |
US6934562B1 (en) * | 1999-10-08 | 2005-08-23 | Bellsouth Intellectual Property Corporation | System for coupling a mobile radio service base station to an antenna |
US6952565B1 (en) * | 1999-10-13 | 2005-10-04 | Hitachi, Ltd. | Communication terminal, automobile communication terminal, and automobile |
US6738601B1 (en) * | 1999-10-21 | 2004-05-18 | Broadcom Corporation | Adaptive radio transceiver with floating MOSFET capacitors |
US6920315B1 (en) * | 2000-03-22 | 2005-07-19 | Ericsson Inc. | Multiple antenna impedance optimization |
US6591086B1 (en) * | 2000-04-24 | 2003-07-08 | Telaxis Communications Corporation | Enhanced time division duplexing (TDD) transceiver circuitry |
US6845126B2 (en) * | 2001-01-26 | 2005-01-18 | Telefonaktiebolaget L.M. Ericsson (Publ) | System and method for adaptive antenna impedance matching |
DE60221613T2 (de) * | 2001-09-27 | 2007-12-06 | Kabushiki Kaisha Toshiba | Tragbares Funkgerät |
JP2003158468A (ja) * | 2001-11-20 | 2003-05-30 | Toshiba Corp | 携帯無線装置 |
JP4096294B2 (ja) * | 2002-05-14 | 2008-06-04 | 日本電気株式会社 | 携帯電話装置 |
DE20221966U1 (de) * | 2002-06-06 | 2010-02-25 | Epcos Ag | Mit akustischen Wellen arbeitendes Bauelement mit einem Anpaßnetzwerk |
US7224366B2 (en) * | 2002-10-17 | 2007-05-29 | Amx, Llc | Method and system for control system software |
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TW200509561A (en) | 2005-03-01 |
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