CN105161866A - Antenna tuner, multi-band antenna and mobile terminal - Google Patents
Antenna tuner, multi-band antenna and mobile terminal Download PDFInfo
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- CN105161866A CN105161866A CN201510548209.6A CN201510548209A CN105161866A CN 105161866 A CN105161866 A CN 105161866A CN 201510548209 A CN201510548209 A CN 201510548209A CN 105161866 A CN105161866 A CN 105161866A
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Abstract
The application discloses an antenna tuner, a multi-band antenna and a mobile terminal. The antenna tuner is arranged at a feeding end of the multi-band antenna and comprises two capacitors connected in series and a plurality of LC-series resonant circuits connected in parallel, wherein at least one of the two capacitors is a variable capacitor, each LC-series resonant circuit is connected between a connection point of the two capacitors and the ground and is a series structure formed by an inductor and a variable capacitor, so that the purpose of selectively and independently tuning a certain particular frequency band in the multi-band antenna is achieved.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly, relate to antenna tuner, multiband aerial and mobile terminal.
Background technology
Multiband aerial refers to the antenna that can cover multiple frequency range.Between radio signal sender and multiband aerial during impedance matching, multiband aerial can be made in any frequency range to reach maximum radiant power.But multiband aerial impedance not only can change with the change of communication frequency, also can be subject to the impact of external environment, such as, people hold tight mobile phone time multiband aerial impedance will change; And radio signal sender impedance is normally certain, if it is directly connected with multiband aerial, when being caused by a variety of causes multiband aerial impedance to change, will impedance mismatch be produced, reducing the radiation efficiency of multiband aerial on working frequency range.
Tunable impedance matching networks is added in the feed side of multiband aerial, be commonly called as antenna tuner, just can according to impedance mismatch degree, the impedance of dynamic adjustments multiband aerial, ensure impedance matching between radio signal sender and multiband aerial, thus make multiband aerial on working frequency range, have maximum radiation efficiency.
But, existing antenna tuner can only realize full frequency band tuber function mostly, its defect is: when carrying out tuning to a certain frequency range of multiband aerial, and other does not need or do not wish also can be tuning by tuning frequency range, and this can have influence on the performance of multiband aerial function.Such as, for wifi/GPS dual-band antenna, when wifi and GPS works simultaneously, if tuning wifi frequency range and make GPS frequency range offset, the problem that GPS just may be caused not locate occurs; Otherwise wifi performance also can be made to be affected.
Summary of the invention
In view of this, the invention provides antenna tuner, multiband aerial and mobile terminal, to realize, while reservation full frequency band tuber function, selectively to carry out independent tuning to a certain special frequency channel in multiband aerial.
A kind of antenna tuner, is arranged on the feed side of multiband aerial, comprises 2 capacitors be in series and the multiple LC series resonant circuits be in parallel, wherein:
1 is had at least for variable capacitor in described 2 capacitors;
Between the tie point that LC series resonant circuit described in each is connected to described 2 capacitors and ground;
The cascaded structure that described in each, LC series resonant circuit is made up of inductance and variable capacitor.
A kind of antenna tuner, is arranged on the feed side of multiband aerial, the multiple LC series resonant circuits comprising 1 variable capacitor and be in parallel, wherein:
Between one end that described in each, LC series resonant circuit is connected to described variable capacitor and ground;
The cascaded structure that described in each, LC series resonant circuit is made up of inductance and variable capacitor.
Wherein, each variable capacitor in described antenna tuner can be variable capacitance diode, ferroelectric material variable capacitance, MEMS tunable capacitor or the CMOS variable capacitance chip based on switch.
A kind of multiband aerial, comprises antenna body and above-mentioned any one antenna tuner disclosed.
A kind of mobile terminal, comprises above-mentioned any one multiband aerial disclosed.
As can be seen from above-mentioned technical scheme, antenna tuner is placed in the feed side of multiband aerial by the present invention, form a whole with multiband aerial, to utilize matching network design theory to realize the impedance matching between multiband aerial and radio signal sender; Due between each LC series resonant circuit in described antenna tuner for being connected in parallel, therefore regulate and only can carry out tuning to special frequency channel during wherein parallel branch, and can not have an impact to other frequency ranges.In addition, by regulating the variable capacitor be in series with each LC series resonant circuit described simultaneously, just full frequency band tuber function can be realized.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of antenna tuner structural representation disclosed in the embodiment of the present invention;
Fig. 2 is a kind of antenna tuner structural representation with 2 LC series resonant circuits disclosed in the embodiment of the present invention;
Fig. 3-Fig. 7 to be provided with the tuning analogous diagram of the multiband aerial of antenna tuner shown in Fig. 2 to feed side for the embodiment of the present invention;
Fig. 8 is the embodiment of the present invention another antenna tuner structural representation disclosed.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, the embodiment of the invention discloses a kind of antenna tuner, to realize while reservation full frequency band tuber function, selectively can also carry out independent tuning to a certain special frequency channel in multiband aerial, described antenna tuner is arranged on the feed side of multiband aerial, comprise the capacitor C1 ~ C2 be in series and the LC series resonant circuit #1 ~ #N (N >=2) be in parallel, wherein:
Between the tie point that LC series resonant circuit #1 ~ #N is all connected to capacitor C1 ~ C2 and ground;
The cascaded structure that LC series resonant circuit #1 ~ #N is made up of inductance and variable capacitor, in cascaded structure described in each, the number of inductance, variable capacitor can be arranged arbitrarily as required;
2 capacitor C1 ~ C2 can one be fixed capacitor (i.e. the unalterable capacitor of capacitance), another is variable capacitor (i.e. capacitance can regulate within the specific limits capacitor); Also can 2 be variable capacitor simultaneously, Fig. 1 only with C1 ~ C2 be simultaneously variable capacitor exemplarily.
Wherein, each variable capacitor in described antenna tuner can be variable capacitance diode, ferroelectric material variable capacitance, MEMS (Micro-Electro-MechanicalSystem, MEMS (micro electro mechanical system)) tunable capacitor or CMOS (ComplementaryMetalOxideSemiconductor, complementary metal oxide semiconductors (CMOS)) the variable capacitance chip based on switch.
Antenna tuner is placed in the feed side of multiband aerial by the present embodiment, forms a whole with multiband aerial, to utilize matching network design theory to realize the impedance matching between multiband aerial and radio signal sender; Due between the LC series resonant circuit #1 ~ #N in described antenna tuner for being connected in parallel, therefore regulate and only can carry out tuning to special frequency channel during wherein parallel branch, and can not have an impact to other frequency ranges.In addition, because capacitor C1 ~ C2 is in series with LC series resonant circuit #1 ~ #N simultaneously, therefore by regulating the variable capacitor in C1 ~ C2, just full frequency band tuber function can be realized.
In order to the technical scheme described in clearer description the present embodiment, below for antenna tuner shown in Fig. 2, the principle that a certain special frequency channel that selectively feed side can be provided with the multiband aerial of antenna tuner to the present embodiment carries out independent tuning is analyzed.
Antenna tuner shown in Fig. 2 comprises the capacitor C1 ~ C2 be in series and the LC series resonant circuit #1 ~ #2 be in parallel, wherein, capacitor C1 ~ C2 is variable capacitor, the cascaded structure that LC series resonant circuit #1 is made up of inductance L 1 and variable capacitor C3, the cascaded structure that LC series resonant circuit #2 is made up of inductance L 2 and variable capacitor C4 ~ C5; Any one LC series resonant circuit can form T-shaped matching network with capacitor C1 ~ C2.
Analysis chart 2 is known, at control variable capacitor C1 ~ C2, when the capacitance of C4 ~ C5 all remains unchanged, adjustment variable capacitor C3, when LC series resonant circuit #1 produces resonance, LC series resonant circuit #1 is short circuit, amplitude peak can change the input impedance of whole multiband aerial at the Frequency point of LC series resonant circuit #1, and at disresonance point, the input impedance change of whole multiband aerial is very little, can ignore, therefore the object of only that special frequency channel before adjustment variable capacitor C3 being carried out to independent tuning is achieved, and other frequency ranges are not almost affected, and, the resonance point of the resonance point distance LC series resonant circuit #1 of LC series resonant circuit #2 is far away, this impact is less,
Same reason, when the capacitance controlling variable capacitor C1 ~ C3 all remains unchanged, adjustment variable capacitor C4 ~ C5, when LC series resonant circuit #2 produces resonance, LC series resonant circuit #2 is short circuit, amplitude peak can change the input impedance of whole multiband aerial at the Frequency point of LC series resonant circuit #2, and at disresonance point, the input impedance change of whole multiband aerial is very little, can ignore, therefore the object of only that special frequency channel before adjustment variable capacitor C4 ~ C5 being carried out to independent tuning is achieved, and other frequency ranges are not almost affected, and, the resonance point difference of the resonance point distance LC series resonant circuit #2 of LC series resonant circuit #1 is far away, this impact is less.
Visible, the present embodiment can realize selectively carrying out independent tuning to a certain special frequency channel in whole multiband aerial.
In addition, because any one the LC series resonant circuit in variable capacitor C1 ~ C2 and LC series resonant circuit #1 ~ #N is all connected, therefore by changing the capacitance of variable capacitor C1 and/or variable capacitor C2, just can change the input impedance of whole multiband aerial, what realize full frequency band is tuning.
In order to the beneficial effect making those skilled in the art get more information about scheme described in the present embodiment, provide the present embodiment is provided with the multiband aerial of antenna tuner shown in Fig. 2 tuning simulation result to feed side below.
The first step: when variable capacitor C1 ~ C5 keeps initial parameter, first obtain simulation result as shown in Figure 3; Wherein, the initial parameter of C1 ~ C5 is respectively 0.396pF, 0.222pF, 4.85pF, 0.035pF, 6.55pH, L1=18.6nH, L2=44.4nH;
Second step: the capacitance of control variable capacitor C1 ~ C2, C4 ~ C5 all remains unchanged, increase the capacitance of variable capacitor C3, simulation result as shown in Figure 4 can be obtained, result shows, only have 1.5GHz frequency range tuning, tuning rear S11 parameter changes to 1.59GHz frequency range from 1.5GHz frequency range, and other frequency ranges are not by tuning (adjacent frequency bands only has the amplitude of S11 parameter to change); S11 parameter is the reflection coefficient of multiband aerial;
3rd step: the capacitance controlling variable capacitor C1 ~ C4 all remains unchanged, increase the capacitance of variable capacitor C5, simulation result as shown in Figure 5 can be obtained, result shows, only have 4.3GHz frequency range tuning, tuning rear S11 parameter changes to 4.2GHz frequency range from 4.3GHz frequency range, and other frequency ranges are not by tuning (adjacent frequency bands only has the amplitude of S11 parameter to change);
4th step: the capacitance controlling variable capacitor C1 ~ C3 all remains unchanged, and cancel the 3rd step to the adjustment of C5, change the capacitance of variable capacitor C4 afterwards, simulation result as shown in Figure 6 can be obtained, result shows, and only have 4.3GHz frequency range tuning, tuning rear S11 parameter changes to 4.0GHz frequency range from 4.3GHz frequency range, excursion changes greatly than when changing C5, and this is relevant with the size of capacitance; Other frequency ranges are not tuning, but the amplitude of S11 parameter there occurs change;
5th step: the capacitance controlling variable capacitor C3 ~ C5 all remains unchanged, change the capacitance of C1 ~ C2, can obtain simulation result as shown in Figure 7, now full frequency band is all tuning, and the amplitude of S11 parameter all changes.
As can be seen from above-mentioned simulation result, the present embodiment not only selectively can carry out independent tuning to a certain special frequency channel in multiband aerial, and has full frequency band tuning capability equally.
In addition, see Fig. 8, the embodiment of the invention also discloses another antenna tuner, described antenna tuner is arranged on the feed side of multiband aerial, the LC series resonant circuit #1 ~ #N (N >=2) comprising variable capacitor C1 and be in parallel, wherein:
Between one end that LC series resonant circuit #1 ~ #N is all connected to variable capacitor C1 and ground;
The cascaded structure that LC series resonant circuit #1 ~ #N is made up of inductance and variable capacitor, in cascaded structure described in each, the number of inductance, variable capacitor can be arranged arbitrarily as required.
Wherein, each variable capacitor in described antenna tuner can be variable capacitance diode, ferroelectric material variable capacitance, MEMS tunable capacitor or the CMOS variable capacitance chip based on switch.
In antenna tuner shown in Fig. 8, any one LC series resonant circuit can form a L-type matching network with variable capacitor C1, namely the difference of antenna tuner shown in antenna tuner and Fig. 1 shown in Fig. 8 is only to save a capacitor C2, from aforementioned description, as long as have LC series resonant circuit #1 ~ #N in antenna tuner, just can realize selectively carrying out independent tuning to a certain special frequency channel in multiband aerial, and, as long as change in antenna tuner the variable capacitor having and be in series with any one the LC series resonant circuit in LC series resonant circuit #1 ~ #N, just can realize full frequency band tuber function, therefore antenna tuner shown in Fig. 8 equally can while reservation full frequency band tuber function, selectively can also carry out independent tuning to a certain special frequency channel in multiband aerial.
In addition, the embodiment of the invention also discloses a kind of multiband aerial, comprise antenna body and above-mentioned any one antenna tuner disclosed.
In addition, the embodiment of the invention also discloses a kind of mobile terminal, as smart mobile phone etc., it has above-mentioned any one multiband aerial disclosed.
In sum, antenna tuner is placed in the feed side of multiband aerial by the present invention, forms a whole with multiband aerial, to utilize matching network design theory to realize the impedance matching between multiband aerial and radio signal sender; Due between each LC series resonant circuit in described antenna tuner for being connected in parallel, therefore regulate and only can carry out tuning to special frequency channel during wherein parallel branch, and can not have an impact to other frequency ranges.In addition, by regulating the variable capacitor be in series with each LC series resonant circuit described simultaneously, just full frequency band tuber function can be realized.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For multiband aerial, mobile terminal disclosed in embodiment, because it is corresponding with antenna tuner part disclosed in embodiment, so description is fairly simple, relevant part illustrates see antenna tuner part.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the embodiment of the present invention, can realize in other embodiments.Therefore, the embodiment of the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. an antenna tuner, is arranged on the feed side of multiband aerial, it is characterized in that, described antenna tuner comprises 2 capacitors be in series and the multiple LC series resonant circuits be in parallel, wherein:
1 is had at least for variable capacitor in described 2 capacitors;
Between the tie point that LC series resonant circuit described in each is connected to described 2 capacitors and ground;
The cascaded structure that described in each, LC series resonant circuit is made up of inductance and variable capacitor.
2. an antenna tuner, is arranged on the feed side of multiband aerial, it is characterized in that, multiple LC series resonant circuits that described antenna tuner comprises 1 variable capacitor and is in parallel, wherein:
Between one end that described in each, LC series resonant circuit is connected to described variable capacitor and ground;
The cascaded structure that described in each, LC series resonant circuit is made up of inductance and variable capacitor.
3. antenna tuner according to claim 1 and 2, it is characterized in that, each variable capacitor in described antenna tuner can be variable capacitance diode, ferroelectric material variable capacitance, MEMS tunable capacitor or the CMOS variable capacitance chip based on switch.
4. a multiband aerial, is characterized in that, comprises the antenna tuner according to any one of antenna body and claim 1-3.
5. a mobile terminal, is characterized in that, comprises multiband aerial according to claim 4.
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| CN201510548209.6A CN105161866B (en) | 2015-08-31 | 2015-08-31 | Antenna tuner, multiband aerial and mobile terminal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516945A (en) * | 2016-06-17 | 2017-12-26 | 三星电机株式会社 | Resonator module and utilize this wireless power transmission apparatus |
| CN107591624A (en) * | 2017-08-17 | 2018-01-16 | 青岛海信电器股份有限公司 | Antenna, television terminal |
| CN108900217A (en) * | 2018-07-11 | 2018-11-27 | Oppo（重庆）智能科技有限公司 | Tuning circuit, radio circuit and electronic equipment |
| CN111224221A (en) * | 2020-01-14 | 2020-06-02 | 宇龙计算机通信科技(深圳)有限公司 | Antenna structure and terminal |
| CN112019228A (en) * | 2019-05-30 | 2020-12-01 | 湖南格兰德芯微电子有限公司 | Multi-mode multi-frequency transceiver circuit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0064323A1 (en) * | 1981-04-20 | 1982-11-10 | John Fluke Mfg. Co., Inc. | An electronic circuit, such as an electronically tunable oscillator circuit, including an LC resonant circuit |
| CN101795120A (en) * | 2009-01-30 | 2010-08-04 | 株式会社Ntt都科摩 | Multiband matching circuit and multiband power amplifier |
| CN101911387A (en) * | 2007-11-28 | 2010-12-08 | 高通股份有限公司 | Wireless power range increase using parasitic antennas |
| CN102077416A (en) * | 2008-06-25 | 2011-05-25 | 诺基亚公司 | An antenna arrangement |
| KR20120088456A (en) * | 2011-01-31 | 2012-08-08 | 엘지이노텍 주식회사 | Impedance matching circuit |
| CN103490794A (en) * | 2013-09-09 | 2014-01-01 | 熊猫电子集团有限公司 | Variable shortwave antenna tuner matching network structure circuit |
| CN204376888U (en) * | 2014-12-21 | 2015-06-03 | 天津七六四通信导航技术有限公司 | A kind of lc circuit of portable antenna tuner |
-
2015
- 2015-08-31 CN CN201510548209.6A patent/CN105161866B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0064323A1 (en) * | 1981-04-20 | 1982-11-10 | John Fluke Mfg. Co., Inc. | An electronic circuit, such as an electronically tunable oscillator circuit, including an LC resonant circuit |
| CN101911387A (en) * | 2007-11-28 | 2010-12-08 | 高通股份有限公司 | Wireless power range increase using parasitic antennas |
| CN102077416A (en) * | 2008-06-25 | 2011-05-25 | 诺基亚公司 | An antenna arrangement |
| CN101795120A (en) * | 2009-01-30 | 2010-08-04 | 株式会社Ntt都科摩 | Multiband matching circuit and multiband power amplifier |
| KR20120088456A (en) * | 2011-01-31 | 2012-08-08 | 엘지이노텍 주식회사 | Impedance matching circuit |
| CN103490794A (en) * | 2013-09-09 | 2014-01-01 | 熊猫电子集团有限公司 | Variable shortwave antenna tuner matching network structure circuit |
| CN204376888U (en) * | 2014-12-21 | 2015-06-03 | 天津七六四通信导航技术有限公司 | A kind of lc circuit of portable antenna tuner |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516945A (en) * | 2016-06-17 | 2017-12-26 | 三星电机株式会社 | Resonator module and utilize this wireless power transmission apparatus |
| CN107591624A (en) * | 2017-08-17 | 2018-01-16 | 青岛海信电器股份有限公司 | Antenna, television terminal |
| CN108900217A (en) * | 2018-07-11 | 2018-11-27 | Oppo（重庆）智能科技有限公司 | Tuning circuit, radio circuit and electronic equipment |
| CN112019228A (en) * | 2019-05-30 | 2020-12-01 | 湖南格兰德芯微电子有限公司 | Multi-mode multi-frequency transceiver circuit |
| CN112019228B (en) * | 2019-05-30 | 2021-11-23 | 格兰康希通信科技(上海)有限公司 | Multi-mode multi-frequency transceiver circuit |
| CN111224221A (en) * | 2020-01-14 | 2020-06-02 | 宇龙计算机通信科技(深圳)有限公司 | Antenna structure and terminal |
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| CN105161866B (en) | 2018-09-04 |
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