EP1078424A1 - Multiband antenna - Google Patents
Multiband antennaInfo
- Publication number
- EP1078424A1 EP1078424A1 EP00918805A EP00918805A EP1078424A1 EP 1078424 A1 EP1078424 A1 EP 1078424A1 EP 00918805 A EP00918805 A EP 00918805A EP 00918805 A EP00918805 A EP 00918805A EP 1078424 A1 EP1078424 A1 EP 1078424A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- range
- antenna device
- short
- halves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
Definitions
- the invention relates to a multi-range antenna according to the preamble of claim 1.
- the mobile radio area is largely handled via the GSM 900 network, i.e. in the 900 MHz range.
- the GSM 1800 standard has also become established, in which signals can be received and sent in a 1800 MHz range.
- Such multi-range base stations therefore require multi-range antenna devices for transmitting and receiving different frequency ranges, which usually have dipole structures, i.e. a dipole antenna device for transmitting and receiving the 900 MHz band range and a further dipole antenna device for transmitting and receiving the 1800 MHz -Band range.
- An antenna device known according to the prior art is shown schematically in FIG. 1.
- Such a known antenna device comprises a common antenna input 1, which is followed by a combiner circuit 3 on the antenna side in order to enable a corresponding decoupling of the signals transmitted in the different frequency ranges.
- This combiner or branch circuit 3 is followed by two branch lines 5 ′ and 5 ′′, which lead to the first antenna device 7 ′ and the second antenna device 7 ′′ in order to handle the radio traffic in the first and second band areas.
- the branching circuit 3 is provided with integrated frequency-selective components, for example in the manner of a bandpass filter, which in each case block the two branch lines 5 1 and 5 ′′ from the band area of the other antenna device.
- An integration of the relevant components in the antenna device can be achieved solely by appropriate implementation of the symmetry and the effective electrical line length of the relevant antenna device starting from the junction point, without the need for separate components, as in the prior art.
- the effective electrical length of the balancing can be adapted such that each frequency-selective component integrated in the antenna device in question (for example, in the manner of a bandpass) blocks the frequency of the second antenna device for the other frequency band range, i.e. in idle mode is operated.
- Figure 1 is a schematic block diagram for explaining a two-range antenna according to the prior art
- FIG. 2 shows a schematic block diagram modified from FIG. 1 to explain the two-area antenna according to the invention
- FIG. 3 a basic circuit diagram to explain the mode of operation of the two-
- FIG. 4 shows a schematic cross-sectional illustration through an exemplary embodiment of the two-area antenna according to the invention
- Figure 5 a schematic, partial side view of one of the two antenna devices shown in Figure 4 for further clarification of the feed and the
- Figure 6 a partial plan view along the
- FIG. 2 in deviation from a two-range antenna known from the prior art, as shown in FIG. 1, shows that instead of the actual branching circuit according to the invention, only one branching or sum point, according to the invention, is shown. hereinafter also called star point 5, is provided, at which an antenna input line 11 is electrically branched to the two branch lines 5 'and 5 ".
- Each of these two branch lines 5 ', 5 "leads to the two antenna devices 7' and 7", each of which comprises a radiator 9 'and 9 "with a dipole structure, in the exemplary embodiment shown in the form of two ⁇ / 2 dipoles (FIG. 4).
- An associated frequency-selective component 11 ', 11 " is quasi integrated into each of these radiator arrangements 9', 9", which functions from the symmetry of the dipole radiators 9 ', 9 "and the associated electrical line length between the branching point 5 and the feed point at the associated one Dipole radiator is determined.
- the feed for such a two-range antenna takes place via a common antenna input 1, i.e. a common antenna input line 1 ', via which the frequency signals for transmission in the GSM 900 or GSM 1800 frequency band range are supplied.
- the feed is preferably carried out via a coaxial line, m 3 being the coaxial line, i.e. the inner and outer conductors are shown as two-wire circuits to illustrate the switching principle.
- FIGS. 4 ff. which relate to a more specific exemplary embodiment.
- FIG. 4 shows a vertical section representation of a two-range antenna with a schematic representation, which is constructed on a reflector 19, which also serves as a base plate for the construction of the antenna arrangement, the two-range antenna having a removable one for electromagnetic Radiation-permeable housing 21 is provided. Inside the housing 21 there is a first antenna device 7 ', ie a first radiator 7' for operation in accordance with the GSM 1800 standard, in the form of a dipole 23.
- the two dipole halves 23a and 23b are located at the upper end of an associated holder 24 ,
- the two holder halves 24a, 24b are formed in one piece and are shaped by corresponding bending and edging, to be precise with the formation of a lower, common foot or anchoring section 27 which merges into the two holder halves 24a, 24b and which extends, for example, from below screw 28 screwed into the reflector plate 19 can be securely held and anchored (FIG. 5).
- the two dipole halves 23a and 23b are carried or held by two balancing halves 25a and 25b and form the symmetry of the dipole 23 with the area above a short circuit 41 to be explained.
- the symmetrical halves 31a and 31b are formed by the sections of the holder halves 30a and 30b above a short circuit 41 ".
- the height and the dipole length are matched to the frequency band range to be transmitted and the radiation diagram, in this exemplary embodiment to the 1800 MHz band range.
- this radiator also being a dipole radiator 29 with two diodes.
- Pole halves 29a and 29b is formed, which are held at the upper end of a symmetry 31 with two symmetry halves 31a and 31b.
- the structure and anchoring on the reflector plate 19 can be designed similarly to the case of the first dipole radiator 23 explained.
- the length of the dipole halves and the symmetry, as well as the height of the holder halves, are matched in this radiator for transmission of the 900 MHz band range with a correspondingly desired radiation pattern, which is why the length of the dipoles is twice as long as in the first antenna device 7 '.
- a non-conductive fixing element 35 can be provided at the upper end of the balancing in the antenna device, which fixes the two balancing halves relative to one another, which merely serves to improve the stability of the antenna device (FIG. 5).
- the two branch lines 5 ', 5 extend from this star point 5 to the two radiators 7', 7", each of the two branch lines 5 ', 5 “in the exemplary embodiment shown being essentially parallel and adjacent to one of the two symmetrical halves 25b Radiator 7 'or 31b extends at the radiator 7 ".
- the feed is usually carried out in such a way that (as can be seen in particular from the schematic illustration in FIG.
- the outer conductor 5'a or 5 "a of the coaxial branch lines 5 'or 5" at the level of the one dipole half, for example the dipole half 23b, is connected in an electrically conductive manner to the feed point 12'a, and that the inner conductor 5'b (or 5 "b in the antenna device 7") which extends beyond this associated dipole half 23b is connected via a connecting bridge 39 '(or 39 ") is electrically conductively connected on the inside to the respective second dipole half 23a or 29a.
- the aforementioned short circuit 41' and 41" is provided, which is so with regard to its position and arrangement is chosen so that in each case the built-in frequency-selective component 11 'or 11 "is tuned, for example in the manner of a bandpass, so that the two emitters, ie the two frequency-selective components, block each other.
- the frequency-selective components formed in each case achieves a blocking effect with respect to the frequency band range emitted or received via the other radiator, so that the other frequency band range with respect to the other frequency band range selective component (bandpass) is operated at idle.
- the short circuits 41 'or 41 “mentioned limit the effective length of the balancing to the distance from the top of the associated short circuit 41' or 41" to the height of the dipole radiators 23 or 29. In other words, the reflector itself could be provided at the level of these short circuits (ie the top of the short circuits).
- the electrical length of the antenna or branch line 5 'plus the electrical length of the balancing (which here corresponds to the length of the balancing) from the feed point 12' or 12'a to the short circuit 41 'or the corresponding electrical length of the antenna or Branch line 5 "plus the length of the balancing from the feed point 12" or 12 "a to the short circuit 41" executed in a length that the sum of which each meet the following formula:
- ⁇ 2 is the wavelength for the second frequency band range corresponding to the GSM 900 standard (in the present exemplary embodiment) and ⁇ ⁇ the wavelength for the mobile radio range corresponding to the GSM 1800 standard (in the illustrated exemplary embodiment), and n the values 0, 1, 2, 3, .. . can assume that n can be a number of natural numbers including 0.
- the total electrical length of the first antenna device 7 ', 9' depends, for example for the GSM 1800 standard, on the wavelength of the frequency band transmitted via the second antenna device and the total electrical length of the second antenna device depends on the wavelength of the frequency band transmitted via the first antenna device from.
- the total electrical line length from the branching point 5 via the upper feed point at the level of the respective dipole halves plus the length from this feed point to the upper end of the associated short circuit 41 ', 41 "for the dimensioning the length of the short-circuit element and the width can be designed differently in order to achieve the blocking or idling effect.
- the length or height dimension of the respective short-circuit element 41 ', 41 can also be selected differently, the short-circuit element additionally serving for the mechanical strength and rigidity of the entire arrangement, for example also causing a desired vibration damping.
- the exemplary embodiment can also be implemented for an antenna comprising more than two areas, in general for a multi-area antenna.
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
- Aerials With Secondary Devices (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19912465 | 1999-03-19 | ||
DE19912465A DE19912465C2 (de) | 1999-03-19 | 1999-03-19 | Mehr-Bereichs-Antennenanlage |
PCT/EP2000/002356 WO2000057514A1 (de) | 1999-03-19 | 2000-03-16 | Mehr-bereichs-antenne |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1078424A1 true EP1078424A1 (de) | 2001-02-28 |
EP1078424B1 EP1078424B1 (de) | 2003-06-04 |
Family
ID=7901684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00918805A Expired - Lifetime EP1078424B1 (de) | 1999-03-19 | 2000-03-16 | Mehr-bereichs-antenne |
Country Status (13)
Country | Link |
---|---|
US (1) | US6323820B1 (de) |
EP (1) | EP1078424B1 (de) |
KR (1) | KR100454142B1 (de) |
CN (1) | CN1147031C (de) |
AT (1) | ATE242553T1 (de) |
AU (1) | AU760267B2 (de) |
BR (1) | BR0005455A (de) |
CA (1) | CA2332630C (de) |
DE (2) | DE19912465C2 (de) |
DK (1) | DK1078424T3 (de) |
HK (1) | HK1035607A1 (de) |
NZ (1) | NZ507669A (de) |
WO (1) | WO2000057514A1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7405710B2 (en) * | 2002-03-26 | 2008-07-29 | Andrew Corporation | Multiband dual polarized adjustable beamtilt base station antenna |
US6765542B2 (en) | 2002-09-23 | 2004-07-20 | Andrew Corporation | Multiband antenna |
US6836258B2 (en) | 2002-11-22 | 2004-12-28 | Ems Technologies Canada, Ltd. | Complementary dual antenna system |
US6975278B2 (en) * | 2003-02-28 | 2005-12-13 | Hong Kong Applied Science and Technology Research Institute, Co., Ltd. | Multiband branch radiator antenna element |
CN100463290C (zh) * | 2003-08-05 | 2009-02-18 | 佳邦科技股份有限公司 | 多频天线模块及其无线传输装置 |
US7034769B2 (en) * | 2003-11-24 | 2006-04-25 | Sandbridge Technologies, Inc. | Modified printed dipole antennas for wireless multi-band communication systems |
US6924773B1 (en) | 2004-09-30 | 2005-08-02 | Codman Neuro Sciences Sarl | Integrated dual band H-field shielded loop antenna and E-field antenna |
CN100397704C (zh) * | 2004-11-25 | 2008-06-25 | 刘正芳 | 多频带平面式天线 |
US7683839B2 (en) * | 2006-06-30 | 2010-03-23 | Nokia Corporation | Multiband antenna arrangement |
US7724201B2 (en) * | 2008-02-15 | 2010-05-25 | Sierra Wireless, Inc. | Compact diversity antenna system |
WO2014118784A1 (en) * | 2013-01-30 | 2014-08-07 | Galtronics Corporation Ltd. | Multiband hybrid antenna |
CN103730728B (zh) * | 2013-12-31 | 2016-09-07 | 上海贝尔股份有限公司 | 多频天线 |
EP3883055A1 (de) | 2014-04-11 | 2021-09-22 | CommScope Technologies LLC | Verfahren zur entfernung von resonanzen in mehrbandigen strahlungsanordnungen |
CN105337041A (zh) * | 2015-09-29 | 2016-02-17 | 大连海事大学 | 一种基于菱形振子的全频段电视发射天线 |
CN105960737B (zh) | 2015-12-03 | 2019-08-20 | 华为技术有限公司 | 一种多频通信天线以及基站 |
CN108281757B (zh) * | 2017-01-06 | 2024-08-27 | 普罗斯通信技术(苏州)有限公司 | 用于高频去耦的基站天线 |
NO20170110A1 (en) * | 2017-01-25 | 2018-07-26 | Norbit Its | Wideband antenna balun |
KR101750336B1 (ko) * | 2017-03-31 | 2017-06-23 | 주식회사 감마누 | 다중대역 기지국 안테나 |
WO2020023997A1 (en) | 2018-07-31 | 2020-02-06 | Netcomm Wireless Limited | A multiband mimo antenna in a nested arrangement |
CN110931952B (zh) * | 2018-09-20 | 2021-12-24 | 上海华为技术有限公司 | 多频天线和通信设备 |
CN109687129B (zh) * | 2018-12-20 | 2021-02-02 | 杭州电子科技大学 | 一种滤波天线阵列 |
CN112186333B (zh) * | 2020-09-29 | 2021-06-25 | 华南理工大学 | 基站天线、辐射单元及辐射臂 |
SE544595C2 (en) * | 2020-12-14 | 2022-09-20 | Cellmax Tech Ab | Reflector for a multi-radiator antenna |
CN113363688A (zh) * | 2021-06-25 | 2021-09-07 | 国开启科量子技术(北京)有限公司 | 用于微波驱动离子的近场微波转换装置及方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US2619596A (en) * | 1948-11-12 | 1952-11-25 | Kolster Muriel | Multiband antenna system |
US2886813A (en) * | 1953-04-10 | 1959-05-12 | Donald L Hings | Directional antenna |
DE963794C (de) * | 1955-08-03 | 1957-05-16 | Rohde & Schwarz | Simultanstrahler, insbesondere fuer ultrakurze elektrische Wellen |
GB2192307B (en) | 1986-05-02 | 1990-08-22 | Shinetsu Polymer Co | Push-button keyboard switch unit |
DE3814382A1 (de) * | 1988-04-28 | 1989-11-09 | Standard Elektrik Lorenz Ag | Zweifrequenzantenne |
US5485167A (en) * | 1989-12-08 | 1996-01-16 | Hughes Aircraft Company | Multi-frequency band phased-array antenna using multiple layered dipole arrays |
US5768691A (en) * | 1996-08-07 | 1998-06-16 | Nokia Mobile Phones Limited | Antenna switching circuits for radio telephones |
US6025811A (en) * | 1997-04-21 | 2000-02-15 | International Business Machines Corporation | Closely coupled directional antenna |
CA2241006A1 (en) * | 1997-06-30 | 1998-12-30 | Harris Corporation | A multi-band antenna having a common feed |
US5977928A (en) * | 1998-05-29 | 1999-11-02 | Telefonaktiebolaget Lm Ericsson | High efficiency, multi-band antenna for a radio communication device |
US6211840B1 (en) * | 1998-10-16 | 2001-04-03 | Ems Technologies Canada, Ltd. | Crossed-drooping bent dipole antenna |
-
1999
- 1999-03-19 DE DE19912465A patent/DE19912465C2/de not_active Expired - Fee Related
-
2000
- 2000-03-16 US US09/700,088 patent/US6323820B1/en not_active Expired - Lifetime
- 2000-03-16 WO PCT/EP2000/002356 patent/WO2000057514A1/de active IP Right Grant
- 2000-03-16 CN CNB00800353XA patent/CN1147031C/zh not_active Expired - Lifetime
- 2000-03-16 CA CA002332630A patent/CA2332630C/en not_active Expired - Fee Related
- 2000-03-16 EP EP00918805A patent/EP1078424B1/de not_active Expired - Lifetime
- 2000-03-16 DE DE50002424T patent/DE50002424D1/de not_active Expired - Lifetime
- 2000-03-16 AT AT00918805T patent/ATE242553T1/de not_active IP Right Cessation
- 2000-03-16 NZ NZ507669A patent/NZ507669A/xx unknown
- 2000-03-16 AU AU39622/00A patent/AU760267B2/en not_active Ceased
- 2000-03-16 KR KR10-2000-7011852A patent/KR100454142B1/ko not_active IP Right Cessation
- 2000-03-16 BR BR0005455-0A patent/BR0005455A/pt not_active IP Right Cessation
- 2000-03-16 DK DK00918805T patent/DK1078424T3/da active
-
2001
- 2001-09-05 HK HK01106270A patent/HK1035607A1/xx not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO0057514A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19912465C2 (de) | 2001-07-05 |
DK1078424T3 (da) | 2003-09-29 |
DE50002424D1 (de) | 2003-07-10 |
ATE242553T1 (de) | 2003-06-15 |
KR100454142B1 (ko) | 2004-10-26 |
DE19912465A1 (de) | 2000-10-12 |
NZ507669A (en) | 2002-12-20 |
AU3962200A (en) | 2000-10-09 |
KR20010043005A (ko) | 2001-05-25 |
EP1078424B1 (de) | 2003-06-04 |
CA2332630A1 (en) | 2000-09-28 |
WO2000057514A1 (de) | 2000-09-28 |
BR0005455A (pt) | 2001-01-30 |
HK1035607A1 (en) | 2001-11-30 |
CA2332630C (en) | 2003-04-15 |
CN1147031C (zh) | 2004-04-21 |
CN1296651A (zh) | 2001-05-23 |
AU760267B2 (en) | 2003-05-08 |
US6323820B1 (en) | 2001-11-27 |
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