CN202841115U - Multiband aerial tuned circuit and wireless terminal - Google Patents
Multiband aerial tuned circuit and wireless terminal Download PDFInfo
- Publication number
- CN202841115U CN202841115U CN 201220515152 CN201220515152U CN202841115U CN 202841115 U CN202841115 U CN 202841115U CN 201220515152 CN201220515152 CN 201220515152 CN 201220515152 U CN201220515152 U CN 201220515152U CN 202841115 U CN202841115 U CN 202841115U
- Authority
- CN
- China
- Prior art keywords
- tuning circuit
- switch
- antenna
- frequency
- wireless terminal
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- 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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Transceivers (AREA)
Abstract
The utility model discloses a multiband aerial tuned circuit. The multiband aerial tuned circuit comprises an aerial, a first switch, a second switch, more than two tuned circuits and a control module which is used for controlling switchover of the first switch and the second switch, wherein the aerial is connected with an input end of each tuned circuit through the first switch, an output end of each tuned circuit is connected with the second switch, and the first switch and the second switch are respectively connected with the control module. The utility model further discloses a wireless terminal. The efficiency of a multiband aerial can be improved by adopting the wireless terminal, and the user experience is improved.
Description
Technical Field
The utility model relates to a mobile communication equipment especially relates to a multifrequency section antenna tuning circuit and wireless terminal.
Background
With the development of wireless communication technology, a single-band wireless terminal is gradually developed into multi-band and multi-mode wireless communication equipment, and for the multi-band and multi-mode wireless communication equipment, the multi-band antenna design of the equipment is required to meet the requirement of providing optimal performance within a specific frequency band range. In order to ensure the appearance of the wireless terminal to be small and attractive, the space left for the antenna is smaller and smaller.
The multi-band antenna generally uses a tuning circuit which gives consideration to different frequency band requirements under the influence of a structure and the surrounding environment of the antenna, but the debugging difficulty is increased under the condition, and the multi-band antenna cannot be ensured to be optimal in all frequency bands for the debugging circuit with compromise of a plurality of frequency bands, so that the problems of efficiency reduction, power consumption increase, sensitivity reduction and the like of the multi-band antenna can occur, and the standby time and the communication quality of the wireless terminal are influenced.
In summary, a tuning circuit capable of matching different frequency bands, improving the efficiency of a multiband antenna, and improving the user experience is needed.
SUMMERY OF THE UTILITY MODEL
In view of this, the main object of the present invention is to provide a multi-band antenna tuning circuit and a wireless terminal, which can improve the efficiency of multi-band antenna while matching multiple frequency bands, thereby improving user experience.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a multifrequency section antenna tuned circuit, include: the antenna comprises an antenna, a first switch, a second switch, more than two tuning circuits and a control module for controlling the switching of the first switch and the second switch; the antenna is connected with the input ends of all the tuning circuits through the first switches respectively, the output ends of all the tuning circuits are connected with the second switches, and the control module is connected with the first switches and the second switches respectively.
Here, the first switch and the second switch are both: any one of a micro electro mechanical system, a field effect transistor, a PIN diode, or a switching device;
the tuning circuit includes: one or a combination of both inductive and capacitive elements.
The utility model also provides a multifrequency section antenna tuned circuit, include: the antenna comprises an antenna, a second switch, a first tuning circuit, a second tuning circuit and a control module for controlling the second switch to be switched; the antenna is respectively connected with the input end of the first tuning circuit and the input end of the second tuning circuit, the output end of the first tuning circuit and the output end of the second tuning circuit are respectively connected with the second switch, and the control module is connected with the second switch.
Here, the first tuning circuit is a tuning circuit having a low-pass characteristic, and the second tuning circuit is a tuning circuit having a high-pass characteristic; or,
the first tuning circuit is a tuning circuit having a high-pass characteristic, and the second tuning circuit is a tuning circuit having a low-pass characteristic.
The utility model also provides a wireless terminal, wireless terminal includes above an arbitrary multiband antenna tuned circuit.
The utility model provides a multifrequency section antenna tuning circuit and wireless terminal has following advantage and characteristics:
the utility model discloses divide into different frequency groups according to the frequency size with the frequency channel of multifrequency section antenna, every frequency group corresponds a tuned circuit, makes the multifrequency section antenna switch between a plurality of tuned circuits through on-off control, so, only need belonged frequency of specific frequency band to organize in the tuned circuit that corresponds with the performance of multifrequency section antenna reach the optimum can to improve the efficiency of antenna, promote user experience.
In addition, because the multi-band antenna can be selected from a plurality of frequency groups, and each frequency group comprises a plurality of frequency bands, the multi-band antenna can be selected from the frequency bands with close frequencies, the multi-band antenna can be matched to be optimal as far as possible, the situations of extra power consumption and communication quality deterioration caused by the mismatch of the multi-band antenna are prevented, the matching difficulty of the multi-band antenna can be greatly reduced, the design period is shortened, and the method is simple, convenient and easy to implement.
Drawings
Fig. 1 is a first schematic diagram of embodiment 1 of the present invention;
fig. 2 is a second schematic diagram of embodiment 1 of the present invention.
Detailed Description
The utility model provides a pair of multifrequency section antenna tuned circuit, include: the antenna comprises an antenna, a first switch, a second switch, more than two tuning circuits and a control module; the antenna is connected with the input ends of all the tuning circuits through the first switches respectively, the output ends of all the tuning circuits are connected with the second switches, and the control module is connected with the first switches and the second switches respectively and used for controlling the switching of the first switches and/or the second switches.
Here, when the multi-band antenna has only two frequency groups, and the two frequency groups correspond to respective tuning circuits, i.e. the first tuning circuit and the second tuning circuit, at this time, if the two frequency groups have a large frequency difference, the first switch can be omitted; in this case, it is necessary that the first tuning circuit has a low-pass characteristic and the second tuning circuit has a high-pass characteristic, or the first tuning circuit has a high-pass characteristic and the second tuning circuit has a low-pass characteristic, so that when the frequencies of the two frequency groups are greatly different, the matching of the high-frequency and low-frequency groups can be realized by the first tuning circuit or the second tuning circuit, respectively, and when this matching method is used, the mutual influence between the two frequency groups is small, and the first switch is not necessary for switching, so that the first switch can be omitted.
Based on this, the utility model provides a another kind of multifrequency section antenna tuning circuit includes: the antenna, the second switch, the first tuning circuit, the second tuning circuit and the control module; the antenna is respectively connected with the input end of the first tuning circuit and the input end of the second tuning circuit, the output end of the first tuning circuit and the output end of the second tuning circuit are respectively connected with the second switch, and the control module is connected with the second switch and used for controlling the switching of the second switch.
Wherein, first switch, second switch all can be: any of a micro-electro-mechanical system, a field effect transistor, a PIN diode, or a switching device.
The tuning circuit includes: one or a combination of both inductive and capacitive elements.
For the first multiband antenna tuning circuit, the control module is configured to control switching of the first switch and the second switch, that is: when the working frequency band is determined and the switch is determined to be switched to the working frequency band, the control module firstly obtains a tuning circuit corresponding to a frequency group to which the working frequency band belongs, and then sends instructions to the first switch and the second switch so that the first switch and the second switch are connected to the tuning circuit corresponding to the working frequency band, and the multi-band antenna can output signals of a specific frequency band through the corresponding tuning circuit so as to be sent to a rear-stage circuit; wherein the post-stage circuit includes: a radio frequency test socket, a single-pole multi-throw switch, etc.
For the second multiband antenna tuning circuit, the control module is configured to control switching of the second switch, that is: when the working frequency band is determined and the switch is determined to be switched to the working frequency band, the control module firstly knows whether the frequency band group to which the working frequency band belongs corresponds to the first tuning circuit or the second tuning circuit, and then sends an instruction to the second switch so that the second switch is connected to the first tuning circuit or the second tuning circuit, and the multi-band antenna can output a signal of a specific frequency band through the corresponding tuning circuit so as to send the signal to a rear-stage circuit; wherein the post-stage circuit includes: a radio frequency test socket, a single-pole multi-throw switch, etc.
Here, the control module may pre-store a frequency band range included in each frequency band, so that after the operating frequency band is determined, the frequency band to which the frequency band belongs may be determined according to the frequency range to which the frequency band belongs. The sending of the instruction to the first switch and the second switch may indicate that different frequency groups are selected by sending different level signals.
Example 1
In this embodiment, the frequency bands supported by the wireless terminal are divided into two frequency groups, the corresponding tuning circuits are a low frequency tuning circuit and a high frequency tuning circuit, respectively, and the specific frequency band included in each frequency group is shown in table 1.
TABLE 1
Fig. 1 is a schematic diagram of embodiment 1, and as shown in fig. 1, the multiband antenna tuning circuit in this embodiment includes: an antenna 101, a first switch 102, a second switch 105, a low frequency tuning circuit 103, a high frequency tuning circuit 104, and a control module 106; the antenna 101 is connected to an input terminal of the low frequency tuning circuit 103 and an input terminal of the high frequency tuning circuit 104 through the first switch 102, an output terminal of the low frequency tuning circuit 103 and an output terminal of the high frequency tuning circuit 104 are connected to the second switch 105, and the control module 106 is connected to the first switch 102 and the second switch 105.
Here, it should be noted that the frequency band grouping situation is not limited to that shown in table 1, and the tuning circuit grouping situation is not limited to that shown in fig. 1, and in practical applications, the frequency band grouping situation may be flexibly determined according to how many frequency bands are supported by the wireless terminal.
Taking the frequency band of table 1 supported by the wireless terminal as an example, if the wireless terminal is to operate in the GSM850 frequency band, the first switch 102 and the second switch 105 are both connected to the low frequency tuning circuit; if the wireless terminal is to operate in UMTS B1 frequency band, the first switch 102 and the second switch 105 are both connected to a high frequency tuning circuit.
Wherein the first switch and the second switch may both be: any of a micro electro mechanical system, a field effect transistor, a PIN diode, or a switching device.
The low frequency tuning circuit and the high frequency tuning circuit include: one or a combination of both inductive and capacitive elements.
The control module controls switching of the first switch and the second switch.
For specific application, the second switch is connected with a radio frequency test socket, the specific connection condition is as shown in fig. 2, the second switch 105 is connected with a radio frequency test socket 107, the radio frequency test socket 107 is connected with a single-pole 9-throw switch SP9T 108 to separate each frequency band, so that each frequency band is connected to a corresponding radio frequency processing chip, and further signal transmission of the multi-band antenna in a specific frequency band range is completed; here, the rf test socket 107 may be omitted depending on the layout, the cost, and the like, and after the rf test socket 107 is omitted, the second switch 105 may be directly connected to the single-pole 9-throw switch SP9T 108.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (8)
1. A multi-band antenna tuning circuit, comprising: the antenna comprises an antenna, a first switch, a second switch, more than two tuning circuits and a control module for controlling the switching of the first switch and the second switch; the antenna is connected with the input ends of all the tuning circuits through the first switches respectively, the output ends of all the tuning circuits are connected with the second switches, and the control module is connected with the first switches and the second switches respectively.
2. The multiband antenna tuning circuit of claim 1, wherein the first switch and the second switch are both: any of a micro electro mechanical system, a field effect transistor, a PIN diode, or a switching device.
3. The multiband antenna tuning circuit of claim 1 or 2, wherein the tuning circuit comprises: one or a combination of both inductive and capacitive elements.
4. A multi-band antenna tuning circuit, comprising: the antenna comprises an antenna, a second switch, a first tuning circuit, a second tuning circuit and a control module for controlling the second switch to be switched; the antenna is respectively connected with the input end of the first tuning circuit and the input end of the second tuning circuit, the output end of the first tuning circuit and the output end of the second tuning circuit are respectively connected with the second switch, and the control module is connected with the second switch.
5. The multiband antenna tuning circuit of claim 4, wherein the first tuning circuit is a tuning circuit having a low-pass characteristic, and the second tuning circuit is a tuning circuit having a high-pass characteristic; or,
the first tuning circuit is a tuning circuit having a high-pass characteristic, and the second tuning circuit is a tuning circuit having a low-pass characteristic.
6. The multiband antenna tuning circuit of claim 4 or 5, wherein the second switch is: any of a micro electro mechanical system, a field effect transistor, a PIN diode, or a switching device.
7. The multiband antenna tuning circuit of claim 4 or 5, wherein the tuning circuit comprises: one or a combination of both inductive and capacitive elements.
8. A wireless terminal characterized in that said wireless terminal device comprises the multiband antenna tuning circuit of any one of claims 1 to 3; alternatively, the wireless terminal device comprises the multiband antenna tuning circuit of any one of claims 4 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220515152 CN202841115U (en) | 2012-10-09 | 2012-10-09 | Multiband aerial tuned circuit and wireless terminal |
| PCT/CN2013/079737 WO2013170826A2 (en) | 2012-10-09 | 2013-07-19 | Multiband antenna tuned circuit and wireless terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220515152 CN202841115U (en) | 2012-10-09 | 2012-10-09 | Multiband aerial tuned circuit and wireless terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202841115U true CN202841115U (en) | 2013-03-27 |
Family
ID=47952709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220515152 Expired - Lifetime CN202841115U (en) | 2012-10-09 | 2012-10-09 | Multiband aerial tuned circuit and wireless terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202841115U (en) |
| WO (1) | WO2013170826A2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013170826A2 (en) * | 2012-10-09 | 2013-11-21 | 中兴通讯股份有限公司 | Multiband antenna tuned circuit and wireless terminal |
| CN103594803A (en) * | 2013-10-28 | 2014-02-19 | 瑞声精密制造科技(常州)有限公司 | Self-configurable resonant antenna and working method thereof |
| CN106773625A (en) * | 2016-12-29 | 2017-05-31 | 歌尔股份有限公司 | A smart watch and its antenna signal processing circuit and method |
| CN106961021A (en) * | 2017-03-14 | 2017-07-18 | 珠海市魅族科技有限公司 | The intelligent selecting method of intelligent selection module and terminal antenna frequency range |
| CN107121652A (en) * | 2017-05-10 | 2017-09-01 | 合肥工业大学 | For the multifrequency point array RF receiving coil system in MR imaging apparatus |
| CN112532772A (en) * | 2020-11-23 | 2021-03-19 | 惠州Tcl移动通信有限公司 | Antenna tuning circuit, implementation method and mobile terminal |
| CN113330637A (en) * | 2019-05-31 | 2021-08-31 | 深圳市柔宇科技股份有限公司 | Antenna control method, terminal and computer readable storage medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100647B (en) * | 2016-07-29 | 2019-02-12 | Oppo广东移动通信有限公司 | radio frequency circuit, antenna device and mobile terminal |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10316719B4 (en) * | 2003-04-11 | 2018-08-02 | Snaptrack, Inc. | Front-end circuit for wireless transmission systems |
| CN200990608Y (en) * | 2006-11-24 | 2007-12-12 | 英华达(上海)电子有限公司 | Multi-frequency channel antenna for mobile terminal |
| CN101562273B (en) * | 2009-05-27 | 2012-07-18 | 上海交通大学 | Multi-frequency band built-in reconfigurable mobile terminal antenna |
| CN101826851A (en) * | 2010-04-02 | 2010-09-08 | 广州市圣大电子有限公司 | Frequency-hopping filter with multi-band selection function |
| CN202841115U (en) * | 2012-10-09 | 2013-03-27 | 中兴通讯股份有限公司 | Multiband aerial tuned circuit and wireless terminal |
-
2012
- 2012-10-09 CN CN 201220515152 patent/CN202841115U/en not_active Expired - Lifetime
-
2013
- 2013-07-19 WO PCT/CN2013/079737 patent/WO2013170826A2/en active Application Filing
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013170826A2 (en) * | 2012-10-09 | 2013-11-21 | 中兴通讯股份有限公司 | Multiband antenna tuned circuit and wireless terminal |
| WO2013170826A3 (en) * | 2012-10-09 | 2014-01-30 | 中兴通讯股份有限公司 | Multiband antenna tuned circuit and wireless terminal |
| CN103594803A (en) * | 2013-10-28 | 2014-02-19 | 瑞声精密制造科技(常州)有限公司 | Self-configurable resonant antenna and working method thereof |
| CN106773625A (en) * | 2016-12-29 | 2017-05-31 | 歌尔股份有限公司 | A smart watch and its antenna signal processing circuit and method |
| CN106773625B (en) * | 2016-12-29 | 2023-04-07 | 歌尔股份有限公司 | Smart watch and antenna signal processing circuit and method thereof |
| CN106961021A (en) * | 2017-03-14 | 2017-07-18 | 珠海市魅族科技有限公司 | The intelligent selecting method of intelligent selection module and terminal antenna frequency range |
| CN107121652A (en) * | 2017-05-10 | 2017-09-01 | 合肥工业大学 | For the multifrequency point array RF receiving coil system in MR imaging apparatus |
| CN107121652B (en) * | 2017-05-10 | 2019-11-08 | 合肥工业大学 | Multi-frequency point array radio frequency receiving coil system used in magnetic resonance imaging equipment |
| CN113330637A (en) * | 2019-05-31 | 2021-08-31 | 深圳市柔宇科技股份有限公司 | Antenna control method, terminal and computer readable storage medium |
| CN112532772A (en) * | 2020-11-23 | 2021-03-19 | 惠州Tcl移动通信有限公司 | Antenna tuning circuit, implementation method and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013170826A2 (en) | 2013-11-21 |
| WO2013170826A3 (en) | 2014-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202841115U (en) | Multiband aerial tuned circuit and wireless terminal | |
| CN106299598B (en) | Electronic device and multi-feed antenna thereof | |
| CN105634569B (en) | Realize control circuit, the terminal of carrier wave polymerization and WIFI double frequency MIMO | |
| US9905910B2 (en) | Electronic device and multi-band antenna | |
| US9077388B2 (en) | System for near field communication (NFC) and frequency modulation (FM) communication and portable electronic device using the same | |
| CN105720380B (en) | Adjustable multi-band antenna and antenna debugging method | |
| EP2942834A1 (en) | Antenna apparatus and terminal device | |
| CN202759016U (en) | Tunable coupling feed antenna system | |
| CN103904433A (en) | Tunable multi-band antenna and wireless communication device | |
| US9236657B2 (en) | Antenna device and matching circuit module for antenna device | |
| CN202759442U (en) | Radio frequency front-end circuit of multifrequency terminal and multifrequency terminal | |
| CN103001006B (en) | A kind of wideband antenna for mobile phone with passive antenna and mobile phone | |
| CN103928752A (en) | A mobile phone and its antenna | |
| CN106160756B (en) | radio frequency front end transmitting method, transmitting module, chip and communication terminal | |
| US20150270613A1 (en) | Broadband Switchable Antenna | |
| CN205693664U (en) | communication device | |
| CN102075207A (en) | Device and method for implementing bluetooth and Wi-Fi single antenna | |
| US20140342676A1 (en) | Matching circuit and wireless communication device using the same | |
| CN102377025A (en) | Antenna module and impedance matching method thereof | |
| CN204011720U (en) | A kind of antenna based on switched tuning | |
| CN204156853U (en) | A kind of device for mating antenna and multi-frequency band radio-frequency transceiver module | |
| CN102969989A (en) | Power synthesis device of radio frequency power amplifier | |
| US9077437B2 (en) | Front-end circuit | |
| CN201975511U (en) | Terminal antenna | |
| CN104852754A (en) | Near-field communication device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |