CN101212230A - Device and method for implementing DVB-H antenna matching network for mobile telephone - Google Patents
Device and method for implementing DVB-H antenna matching network for mobile telephone Download PDFInfo
- Publication number
- CN101212230A CN101212230A CNA2006101696557A CN200610169655A CN101212230A CN 101212230 A CN101212230 A CN 101212230A CN A2006101696557 A CNA2006101696557 A CN A2006101696557A CN 200610169655 A CN200610169655 A CN 200610169655A CN 101212230 A CN101212230 A CN 101212230A
- Authority
- CN
- China
- Prior art keywords
- branch road
- dvb
- antenna
- circuit
- antenna system
- 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
Images
Landscapes
- Transceivers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The invention discloses a device and a method thereof for realizing a matching network of a DVB-H antenna of a cell phone, which are used in a DVB-H antenna system of a DVB-H handheld device. The invention is characterized in that: the method comprises the following steps: step 1. an interface of the antenna system is connected with an input end of a radio frequency switch; an output end of the radio frequency switch is respectively connected with N branches, and the number of the branches is a natural number; step 2. a corresponding matching antenna is set for each branch; each matching antenna is regulated to a corresponding equivalent matching circuit through topology optimization of the matching circuit according to the working condition of the antenna system, and then each branch is connected with a feeding port of the antenna in the antenna system. Compared with a proposal of a parallel matching circuit selected by the former switch, the invention removes a radio frequency switch 2 and selects matching of each branch in on state, thus solving the problem of non-ideal work of the radio frequency switch 2 in the former proposal and saving device cost consequently.
Description
Technical field
The present invention relates to a kind of mobile phone DVB-H antenna, particularly relate to the implement device and the method thereof of the matching network of the DVB-H antenna in the communication field.
Background technology
1993, DVB (Digital Video Broadcast, digital television broadcasting) project begins to carry out, be intended to develop the digital video broadcasting standard, the back is by international normal structure ETSI (EuropeanTelecommunication Standards Institute, ETSI) and CENELEC (European Committee for Electrotechnical Normalization, CENELEC) form international standard.The DVB main standard comprises: satellite digital TV transmission system DVB-S, ground digital TV transmission system DVB-T, cable digital TV transmission system DVB-C.In November, 1994, ETSI formally adopts DVB-H standard (development on the basis of DVB-T), is used for battery powered mobile phone terminal.DVB-H not only provides TV programme to the user, and other public services such as film, news, music, weather forecast can also be provided.
The DVB-H system adopts the 470-862MHz frequency range usually, if at GSM (Global System forMobile communication, global system for mobile communications) on the 900 standard mobile phone terminal, the general employing 470-698MHz frequency range of recommending, this just requires antenna to have same wide working frequency range (about 58.86%, 39.04%).When realizing, external antenna generally adopts whip antenna, helical antenna, has adopted the telescopic mechanical structure of pull bar, is easy to realize and satisfy the system gain requirement; Built-in aerial is because the restriction of mobile phone volume also is in development at present.Mention in the DVB-H of ETSI standard, if antenna will cover full frequency band, antenna will adopt adjustable match circuit as far as possible.
At present, about commonly used in the antenna-matching circuit to following several schemes:
(1) switch is selected match circuit in parallel: the port A of antenna system (comprising antenna and matching network) (general and DVB-H handheld device circuit PCB (Print Circuit Board, printed circuit board (PCB)) signal port of plate links to each other) receive the single input of a radio-frequency (RF) switch 1 (for the 1XN switch) earlier, the N of radio-frequency (RF) switch 1 output is received N branch road respectively and (whole working band is divided into the N sub-frequency bands, antenna mates the match circuit that forms oneself respectively on each sub-band, respectively corresponding each branch road), these branch roads are received N input port of radio-frequency (RF) switch 2 (for the NX1 switch) more respectively, the single output of radio-frequency (RF) switch 2 meets antenna current feed port B, as shown in Figure 1, because restriction of mobile phone inner space and circuit loss, number of branches N is too much unsuitable.
The shortcoming of this scheme is: during real work, radio-frequency (RF) switch 2 work that are connected with antenna are unsatisfactory, and the input and output of switch do not match (departing from 50 ohm), and the isolation of each input port is not enough simultaneously.As, when the switch of N=2 is selected match circuit in parallel, the coupling topology is elected L type (inductance of promptly connecting inductance in parallel again) as, during real work, because radio-frequency (RF) switch 2 work is undesirable, cause antenna at low frequency (or high frequency) branch road than low frequency (or high frequency) the state antenna performance of coupling separately down, descend a lot, especially low frequency performance worsens, and can satisfy the system index requirement hardly;
(2) electrical tilt antenna: use adjustable device to realize match circuit.
The shortcoming of this scheme is: in the electricity accent device, varactor passes through to change DC (Direct Current, direct current) biasing and is easy to realize, the still electric adjustable inductance especially less electricity of volume is transferred inductance, is difficult to realize.
Therefore, the DVB-H antenna problem that need solve is how to provide reasonable adjustable match circuit to realize the scheme that the broadband covers.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of implement device and method thereof of DVB-H antenna matching network for mobile telephone, is used to realize mobile phone DVB-H aerial network matching optimization.
To achieve these goals, the invention provides a kind of implement device of DVB-H antenna matching network for mobile telephone, be used for the DVB-H antenna system of DVB-H handheld device, it is characterized in that, comprising:
One jockey is used for the port of described antenna system is connected to the input of a radio-frequency (RF) switch, and the output with described radio-frequency (RF) switch is connected respectively to N branch road again, and number of branches N is a natural number; And
One coalignment, be used to described each branch road that corresponding match circuit respectively is set, and by the match circuit topological optimization described each match circuit is adjusted into corresponding equivalent matched circuit according to the operating state of described antenna system by described radio-frequency (RF) switch, more described each branch road is connected to the antenna current feed port of described antenna system.
To achieve these goals, the present invention also provides a kind of implementation method of DVB-H antenna matching network for mobile telephone, is used for the DVB-H antenna system of DVB-H handheld device, it is characterized in that, comprising:
Step 2, for described each branch road respectively is provided with corresponding match circuit, and by the match circuit topological optimization described each match circuit is adjusted into corresponding equivalent matched circuit according to the operating state of described antenna system, more described each branch road is connected to the antenna current feed port of described antenna system.
The implementation method of described DVB-H antenna matching network for mobile telephone, wherein, in the described step 1, described number of branches N value is 2 or 3.
The implementation method of described DVB-H antenna matching network for mobile telephone, wherein, in the described step 2, the topological form of described each match circuit comprises L type circuit, pi-network and T type circuit.
The implementation method of described DVB-H antenna matching network for mobile telephone, wherein, in the described step 2, when described number of branches N value is 2, with second match circuit of first match circuit of the first branch road correspondence, the second branch road correspondence respectively topology is L type circuit, and with the frequency range of described antenna system be divided into the low-frequency range corresponding with described first match circuit, with the corresponding high band of described second match circuit.
The implementation method of described DVB-H antenna matching network for mobile telephone, wherein, set described L type circuit and be series connection first electric capacity first inductance in parallel:
When described antenna system was operated in low-frequency range, described radio-frequency (RF) switch was connected described first branch road, first capacitance open circuit in described second branch road, the first inductance ground connection;
When described antenna system was operated in high band, described radio-frequency (RF) switch was connected described second branch road, first capacitance open circuit in described first branch road, the first inductance ground connection.
The implementation method of described DVB-H antenna matching network for mobile telephone, wherein, in the described step 2, when described number of branches N value is 2, with first match circuit topology of the first branch road correspondence is L type circuit, with second match circuit topology of the second branch road correspondence is pi-network, and with the frequency range of described antenna system be divided into the low-frequency range corresponding with described first match circuit, with the corresponding high band of described second match circuit.
The implementation method of described DVB-H antenna matching network for mobile telephone wherein, is set described L type circuit and is series connection first electric capacity first inductance in parallel, and pi-network is second electric capacity in parallel, series connection the 3rd electric capacity, second inductance in parallel again:
When described antenna system was operated in low-frequency range, described radio-frequency (RF) switch was connected described first branch road, the second inductance ground connection in described second branch road, second electric capacity and the 3rd capacitances in series ground connection;
When described antenna system was operated in high band, described radio-frequency (RF) switch was connected described second branch road, first capacitance open circuit in described first branch road, the first inductance ground connection.
The implementation method of described DVB-H antenna matching network for mobile telephone, wherein, the electric capacity in described L type circuit, pi-network and/or the T type circuit, the reactance value of inductance are determined according to the operating state of described antenna system when low-frequency range, the high band.
The implementation method of described DVB-H antenna matching network for mobile telephone wherein, in the described step 2, is connected to described antenna current feed port with described each branch road by transmission line.
The useful technique effect of technical solution of the present invention is:
Select match circuit scheme in parallel to compare with original switch, removed radio-frequency (RF) switch 2, each bar branch road is selected to mate under the connection situation, solved the unfavorable problem of former scheme radio-frequency (RF) switch 2 work, also saved device cost simultaneously.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the schematic diagram that existing switch is selected match circuit scheme in parallel;
Fig. 2 is the schematic diagram of antenna matching network scheme of the present invention;
Fig. 3 is an antenna match scheme specific embodiment one of the present invention;
Fig. 4 is embodiment illustrated in fig. 3 one equivalent matched circuit diagram when being operated in low-frequency range;
Fig. 5 is an antenna match scheme specific embodiment two of the present invention;
Fig. 6 is embodiment illustrated in fig. 5 two equivalent matched circuit diagrams when being operated in low-frequency range;
Fig. 7 is embodiment illustrated in fig. 5 two equivalent matched circuit diagrams when being operated in high band.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Seeing also shown in Figure 2ly, is the schematic diagram of antenna matching network scheme of the present invention.As shown in Figure 2, the implement device of the DVB-H antenna matching network for mobile telephone of having described is applied to the DVB-H antenna system of DVB-H handheld device, and described device comprises jockey 10 and coalignment 20.
General N elects 2 or 3 as, is about to whole working band and is divided into the corresponding branch road of 2 to 3 frequency sub-band, and match circuit is connected at this branch road on each branch road, other branch roads disconnect but under the situation that match circuit exists, antenna is mated on corresponding frequency sub-band.
Seeing also shown in Figure 3ly, is antenna match scheme specific embodiment one of the present invention, and Fig. 4 is embodiment illustrated in fig. 3 one equivalent matched circuit diagram when being operated in low-frequency range.
As shown in Figure 3, number of branches is 2, i.e. N=2, and the match circuit topology is elected the L type as in the branch, is electric capacity of series connection inductance in parallel.Whole frequency is divided into low-frequency range and high band, corresponds respectively to branch road 1 and branch road 2.
When system works during in low-frequency range, radio-frequency (RF) switch 1 is connected branch road 1, capacitor C 2 open circuits in the branch road 2, inductance L 2 ground connection, this moment antenna system port A and the equivalent matched circuit between antenna current feed port B as shown in Figure 4, the port A that is equivalent to antenna system has connected a capacitor C 1, parallel connection equivalent inductance L
*
When system works during at high band, radio-frequency (RF) switch 1 is connected branch road 2, capacitor C 1 open circuit in the branch road 1, inductance L 1 ground connection, in like manner, this moment antenna system port A and antenna current feed port B between the equivalent inductance of having connected a capacitor C 2 and parallel connection.
As can be seen, during for low-frequency range and high band operation, two branch roads have all participated in coupling, are not separate incoherent.When therefore designing, C1, C2, L1, L2 are optimized simultaneously, design corresponding reactance numerical value according to two kinds of operating states.
When L type coupling during for inductance of series connection electric capacity in parallel, same, can between the port A of antenna system and antenna current feed port B, form the equivalent matched circuit.
Seeing also shown in Figure 5ly, is antenna match scheme specific embodiment two of the present invention, and Fig. 6 is embodiment illustrated in fig. 5 two equivalent matched circuit diagrams when being operated in low-frequency range, and Fig. 7 is embodiment illustrated in fig. 5 two equivalent matched circuit diagrams when being operated in high band.
As shown in Figure 5, number of branches still is 2, and the match circuit topology is the L type in the branch 1, the electric capacity that is to connect inductance in parallel, and match circuit topology be the π type in the branch 2, is an electric capacity in parallel, the electric capacity of connecting, inductance of parallel connection again.Whole frequency is divided into low-frequency range and high band, corresponds respectively to branch road 1 and branch road 2.
When system works during in low-frequency range, radio-frequency (RF) switch 1 is connected branch road 1, inductance L 2 ground connection in the branch road 2, capacitor C 2 and C3 series connection ground connection, this moment antenna system port A and the equivalent matched circuit between antenna current feed port B as shown in Figure 6, the port A that is equivalent to antenna system has connected a capacitor C 1, parallel connection equivalent inductance L
*With equivalent capacity C
*
When system works during at high band, radio-frequency (RF) switch 1 is connected branch road 2, capacitor C 1 open circuit in the branch road 1, inductance L 1 ground connection, the port A of antenna system and the equivalent matched circuit between antenna current feed port B are as shown in Figure 7 at this moment, be equivalent to antenna system port A parallel connection capacitor C 3, the capacitor C 2 of having connected, equivalent inductance L in parallel again
*
When therefore designing, C1, C2, C3, L1, L2 are optimized simultaneously, design corresponding reactance numerical value according to low frequency and two kinds of operating states of high frequency.
The match circuit topology is under the other forms of situation, as T type circuit, and same being suitable for.
When coupling number of branches N is 3, as a same reason, connect a certain branch road when radio-frequency (RF) switch, consider the reactance influence of two branch roads in addition, can equivalent matched circuit of formation between the port A of antenna system and antenna current feed port B.At this moment, all coupling device value are carried out the network matching optimization as variable according to 3 kinds of operating states (radio-frequency (RF) switch is connected the corresponding branch road work of low frequency, intermediate frequency and high frequency respectively).
The present invention overcomes the deficiency of the existing adjustable match circuit scheme of DVB-H antenna, and a kind of implementation method of adjustable match circuit is provided, and the antenna scheme that the present invention adopts has following advantage:
1), realized to satisfy system requirements to the electric adjustable match circuit of DVB-H antenna broadband operation requirement;
2), can guarantee the switch operate as normal.Select the coupling branch road owing to only adopt a radio-frequency (RF) switch, these switch input and output all can be carried out good impedance matching (50 ohm), removed another radio-frequency (RF) switch of joining with antenna current feed port, therefore do not exist the serious mismatch of switch, isolation low, cause the problem that antenna performance worsens;
3), reduced the switch power consumption, used a NX1 switching device because select match circuit in parallel to lack than original switch; And
4), be easy to modularization, saved cost.Used a NX1 switching device owing to select match circuit in parallel to lack, realized that therefore the network cost of electric adjustable wide-band coupling has descended than original switch.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. the implement device of a DVB-H antenna matching network for mobile telephone is used for the DVB-H antenna system of DVB-H handheld device, it is characterized in that, comprising:
One jockey is used for the port of described antenna system is connected to the input of a radio-frequency (RF) switch, and the output with described radio-frequency (RF) switch is connected respectively to N branch road again, and number of branches N is a natural number; And
One coalignment, be used to described each branch road that corresponding match circuit respectively is set, and by the match circuit topological optimization described each match circuit is adjusted into corresponding equivalent matched circuit according to the operating state of described antenna system by described radio-frequency (RF) switch, more described each branch road is connected to the antenna current feed port of described antenna system.
2. the implementation method of a DVB-H antenna matching network for mobile telephone is used for the DVB-H antenna system of DVB-H handheld device, it is characterized in that, comprising:
Step 1 is connected to the input of a radio-frequency (RF) switch with the port of described antenna system, and the output of described radio-frequency (RF) switch is connected respectively to N branch road, and number of branches N is a natural number; And
Step 2, for described each branch road respectively is provided with corresponding match circuit, and by the match circuit topological optimization described each match circuit is adjusted into corresponding equivalent matched circuit according to the operating state of described antenna system, more described each branch road is connected to the antenna current feed port of described antenna system.
3. the implementation method of DVB-H antenna matching network for mobile telephone according to claim 2 is characterized in that, in the described step 1, described number of branches N value is 2 or 3.
4. the implementation method of DVB-H antenna matching network for mobile telephone according to claim 3 is characterized in that, in the described step 2, the topological form of described each match circuit comprises L type circuit, pi-network and T type circuit.
5. the implementation method of DVB-H antenna matching network for mobile telephone according to claim 4, it is characterized in that, in the described step 2, when described number of branches N value is 2, with second match circuit of first match circuit of the first branch road correspondence, the second branch road correspondence respectively topology is L type circuit, and with the frequency range of described antenna system be divided into the low-frequency range corresponding with described first match circuit, with the corresponding high band of described second match circuit.
6. the implementation method of DVB-H antenna matching network for mobile telephone according to claim 5 is characterized in that, sets described L type circuit and is series connection first electric capacity first inductance in parallel:
When described antenna system was operated in low-frequency range, described radio-frequency (RF) switch was connected described first branch road, first capacitance open circuit in described second branch road, the first inductance ground connection;
When described antenna system was operated in high band, described radio-frequency (RF) switch was connected described second branch road, first capacitance open circuit in described first branch road, the first inductance ground connection.
7. the implementation method of DVB-H antenna matching network for mobile telephone according to claim 4, it is characterized in that, in the described step 2, when described number of branches N value is 2, with first match circuit topology of the first branch road correspondence is L type circuit, with second match circuit topology of the second branch road correspondence is pi-network, and with the frequency range of described antenna system be divided into the low-frequency range corresponding with described first match circuit, with the corresponding high band of described second match circuit.
8. the implementation method of DVB-H antenna matching network for mobile telephone according to claim 7, it is characterized in that, set described L type circuit and be series connection first electric capacity first inductance in parallel, pi-network is second electric capacity in parallel, series connection the 3rd electric capacity, second inductance in parallel again:
When described antenna system was operated in low-frequency range, described radio-frequency (RF) switch was connected described first branch road, the second inductance ground connection in described second branch road, second electric capacity and the 3rd capacitances in series ground connection;
When described antenna system was operated in high band, described radio-frequency (RF) switch was connected described second branch road, first capacitance open circuit in described first branch road, the first inductance ground connection.
9. according to the implementation method of the arbitrary described DVB-H antenna matching network for mobile telephone of claim 4-8, it is characterized in that the electric capacity in described L type circuit, pi-network and/or the T type circuit, the reactance value of inductance are determined according to the operating state of described antenna system when low-frequency range, the high band.
10. according to the implementation method of the arbitrary described DVB-H antenna matching network for mobile telephone of claim 4-8, it is characterized in that, in the described step 2, described each branch road is connected to described antenna current feed port by transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101696557A CN101212230B (en) | 2006-12-26 | 2006-12-26 | Device and method for implementing DVB-H antenna matching network for mobile telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101696557A CN101212230B (en) | 2006-12-26 | 2006-12-26 | Device and method for implementing DVB-H antenna matching network for mobile telephone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101212230A true CN101212230A (en) | 2008-07-02 |
| CN101212230B CN101212230B (en) | 2012-07-11 |
Family
ID=39611957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101696557A Expired - Fee Related CN101212230B (en) | 2006-12-26 | 2006-12-26 | Device and method for implementing DVB-H antenna matching network for mobile telephone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101212230B (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010133117A1 (en) * | 2009-05-22 | 2010-11-25 | 惠州Tcl移动通信有限公司 | Radio transceiver for mobile communication terminal |
| CN101958723A (en) * | 2010-09-17 | 2011-01-26 | 惠州Tcl移动通信有限公司 | Mobile terminal and antenna matching method thereof |
| CN102484497A (en) * | 2010-08-11 | 2012-05-30 | 株式会社村田制作所 | Frequency-stabilizing circuit, antenna apparatus and communication terminal device |
| WO2012079305A1 (en) * | 2010-12-15 | 2012-06-21 | 中兴通讯股份有限公司 | Terminal antenna |
| CN102751570A (en) * | 2012-06-27 | 2012-10-24 | 惠州Tcl移动通信有限公司 | 3G antenna of mobile phone and 3G mobile phone |
| CN103731175A (en) * | 2012-10-10 | 2014-04-16 | 深圳富泰宏精密工业有限公司 | Antenna assembly and wireless communication device provided with antenna assembly |
| CN104115331A (en) * | 2013-12-20 | 2014-10-22 | 华为终端有限公司 | Antenna and terminal |
| CN104579221A (en) * | 2013-10-25 | 2015-04-29 | 株式会社村田制作所 | High frequency circuit module |
| WO2015154437A1 (en) * | 2014-08-15 | 2015-10-15 | 中兴通讯股份有限公司 | Carrier aggregation supporting method and terminal |
| CN105391457A (en) * | 2015-11-24 | 2016-03-09 | 上海斐讯数据通信技术有限公司 | Radio frequency matching circuit, and method for debugging radio frequency matching circuit |
| CN105406176A (en) * | 2015-12-09 | 2016-03-16 | 广东欧珀移动通信有限公司 | Antenna system for mobile terminal and mobile terminal |
| CN106384893A (en) * | 2016-11-15 | 2017-02-08 | 上海传英信息技术有限公司 | Antenna matching circuit and wireless communication terminal |
| CN106788563A (en) * | 2016-12-21 | 2017-05-31 | 上海斐讯数据通信技术有限公司 | A kind of matching network circuit of terminal radio frequency circuit |
| 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 |
| CN107517060A (en) * | 2017-09-25 | 2017-12-26 | 尚睿微电子（上海）有限公司 | A kind of method of radio-frequency switch circuit and processing radiofrequency signal |
| CN108808245A (en) * | 2018-06-06 | 2018-11-13 | Oppo（重庆）智能科技有限公司 | Tuning switch processing method, device, storage medium and electronic equipment |
| CN111357199A (en) * | 2017-11-24 | 2020-06-30 | 法国大陆汽车公司 | Authentication reader for opening members of motor vehicles |
| CN115001526A (en) * | 2022-08-05 | 2022-09-02 | 荣耀终端有限公司 | Radio frequency system, control method for radio frequency system and electronic equipment |
| CN112821074B (en) * | 2021-01-04 | 2023-04-28 | 中国人民解放军海军工程大学 | Active short wave broadband double whip antenna |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2226345Y (en) * | 1995-08-18 | 1996-05-01 | 孟繁盛 | Active small aerial for all channel TV receiving |
| US6791407B2 (en) * | 2002-01-15 | 2004-09-14 | Mia-Com Eurotec B.V. | Switchable power amplifier |
| KR20050094695A (en) * | 2004-03-24 | 2005-09-28 | 엘지전자 주식회사 | Antenna matching circuit and method for mobile communication terminal |
| KR100714163B1 (en) * | 2004-10-12 | 2007-05-02 | 삼성전자주식회사 | Antenna matching device and method for portable wireless terminal with built-in antenna |
| JP4838536B2 (en) * | 2005-05-20 | 2011-12-14 | 株式会社エヌ・ティ・ティ・ドコモ | Matching circuit |
-
2006
- 2006-12-26 CN CN2006101696557A patent/CN101212230B/en not_active Expired - Fee Related
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010133117A1 (en) * | 2009-05-22 | 2010-11-25 | 惠州Tcl移动通信有限公司 | Radio transceiver for mobile communication terminal |
| CN101562460B (en) * | 2009-05-22 | 2013-04-03 | 惠州Tcl移动通信有限公司 | Wireless receiving and emitting device of mobile communication terminal |
| CN102484497B (en) * | 2010-08-11 | 2014-06-04 | 株式会社村田制作所 | Frequency-stabilizing circuit, antenna apparatus and communication terminal device |
| CN102484497A (en) * | 2010-08-11 | 2012-05-30 | 株式会社村田制作所 | Frequency-stabilizing circuit, antenna apparatus and communication terminal device |
| CN101958723A (en) * | 2010-09-17 | 2011-01-26 | 惠州Tcl移动通信有限公司 | Mobile terminal and antenna matching method thereof |
| CN101958723B (en) * | 2010-09-17 | 2014-06-25 | 惠州Tcl移动通信有限公司 | Mobile terminal and antenna matching method thereof |
| WO2012079305A1 (en) * | 2010-12-15 | 2012-06-21 | 中兴通讯股份有限公司 | Terminal antenna |
| CN102751570A (en) * | 2012-06-27 | 2012-10-24 | 惠州Tcl移动通信有限公司 | 3G antenna of mobile phone and 3G mobile phone |
| CN102751570B (en) * | 2012-06-27 | 2015-09-23 | 惠州Tcl移动通信有限公司 | A kind of 3G antenna of mobile phone and 3G mobile |
| CN103731175A (en) * | 2012-10-10 | 2014-04-16 | 深圳富泰宏精密工业有限公司 | Antenna assembly and wireless communication device provided with antenna assembly |
| CN104579221A (en) * | 2013-10-25 | 2015-04-29 | 株式会社村田制作所 | High frequency circuit module |
| CN104579221B (en) * | 2013-10-25 | 2017-09-08 | 株式会社村田制作所 | RF circuit module |
| CN104115331A (en) * | 2013-12-20 | 2014-10-22 | 华为终端有限公司 | Antenna and terminal |
| US10283864B2 (en) | 2013-12-20 | 2019-05-07 | Huawei Device (Dongguan) Co., Ltd. | Antenna and terminal |
| CN104115331B (en) * | 2013-12-20 | 2016-09-28 | 华为终端有限公司 | A kind of antenna and terminal |
| WO2015154437A1 (en) * | 2014-08-15 | 2015-10-15 | 中兴通讯股份有限公司 | Carrier aggregation supporting method and terminal |
| CN105376872A (en) * | 2014-08-15 | 2016-03-02 | 中兴通讯股份有限公司 | Method and terminal supporting carrier aggregation |
| CN105391457A (en) * | 2015-11-24 | 2016-03-09 | 上海斐讯数据通信技术有限公司 | Radio frequency matching circuit, and method for debugging radio frequency matching circuit |
| CN105406176B (en) * | 2015-12-09 | 2018-09-04 | 广东欧珀移动通信有限公司 | A kind of mobile terminal antenna system and mobile terminal |
| CN105406176A (en) * | 2015-12-09 | 2016-03-16 | 广东欧珀移动通信有限公司 | Antenna system for mobile terminal and mobile terminal |
| CN106384893A (en) * | 2016-11-15 | 2017-02-08 | 上海传英信息技术有限公司 | Antenna matching circuit and wireless communication terminal |
| CN106788563A (en) * | 2016-12-21 | 2017-05-31 | 上海斐讯数据通信技术有限公司 | A kind of matching network circuit of terminal radio frequency circuit |
| 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 |
| CN107517060A (en) * | 2017-09-25 | 2017-12-26 | 尚睿微电子（上海）有限公司 | A kind of method of radio-frequency switch circuit and processing radiofrequency signal |
| CN111357199A (en) * | 2017-11-24 | 2020-06-30 | 法国大陆汽车公司 | Authentication reader for opening members of motor vehicles |
| CN113162582A (en) * | 2017-11-24 | 2021-07-23 | 法国大陆汽车公司 | Authentication reader for opening members of motor vehicles |
| CN108808245A (en) * | 2018-06-06 | 2018-11-13 | Oppo（重庆）智能科技有限公司 | Tuning switch processing method, device, storage medium and electronic equipment |
| CN112821074B (en) * | 2021-01-04 | 2023-04-28 | 中国人民解放军海军工程大学 | Active short wave broadband double whip antenna |
| CN115001526A (en) * | 2022-08-05 | 2022-09-02 | 荣耀终端有限公司 | Radio frequency system, control method for radio frequency system and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101212230B (en) | 2012-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101212230B (en) | Device and method for implementing DVB-H antenna matching network for mobile telephone | |
| CN102067624B (en) | Tunable antenna arrangement | |
| CN100382441C (en) | Dual resonance antenna apparatus | |
| CN1130795C (en) | Extended bandwidth dual-band patch antenna systems and associated methods of broadband operation | |
| US8421703B2 (en) | Apparatus for enabling two elements to share a common feed | |
| CN103296988B (en) | Adjustable impedance matching network | |
| TWI362139B (en) | Digitally controlled antenna tuning circuit for radio frequency receivers | |
| CN100530987C (en) | Antenna device and radio communication device using the same | |
| US20100091690A1 (en) | Distribution diplexer | |
| CN202759016U (en) | Tunable coupling feed antenna system | |
| US20080150828A1 (en) | Antenna arrangement | |
| EP2301108B1 (en) | An antenna arrangement | |
| CN111342243B (en) | Impedance matching adjustable broadband rectification antenna based on resonance structure | |
| WO2010145825A1 (en) | Wireless device providing operability for broadcast standards and method enabling such operability | |
| CN102474004A (en) | Portable wireless device | |
| CN101447604B (en) | Built-in antenna for digital video broadcast-handheld mobile terminal based on variable-capacitance matching circuit | |
| CN101983457A (en) | Wireless apparatus | |
| US8155607B2 (en) | Antenna apparatus of portable terminal | |
| CN101388486B (en) | Restructurable internal antenna of matching network for digital television broadcast mobile terminal | |
| CN206180116U (en) | Antenna matching circuit and radio communication terminal | |
| CN1973400A (en) | Antenna device | |
| US9077437B2 (en) | Front-end circuit | |
| JP3947879B2 (en) | Earphone antenna and portable receiver | |
| CN101964454A (en) | Tuning method of terminal antenna, antenna device and terminal | |
| Huang et al. | Tunable antenna design procedure and harmonics suppression methods of the tunable DVB-H antenna for mobile applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20201226 |