CN102544727A - Inductor DC grounding structure for antenna - Google Patents
Inductor DC grounding structure for antenna Download PDFInfo
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- CN102544727A CN102544727A CN2012100027679A CN201210002767A CN102544727A CN 102544727 A CN102544727 A CN 102544727A CN 2012100027679 A CN2012100027679 A CN 2012100027679A CN 201210002767 A CN201210002767 A CN 201210002767A CN 102544727 A CN102544727 A CN 102544727A
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- inductance
- antenna
- inductor
- earthing
- antenna body
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Abstract
The invention discloses an inductor DC grounding structure for an antenna. The inductor DC grounding structure comprises an antenna body, wherein the antenna body comprises a radiation oscillator and a grounding terminal between which at least one inductor is electrically connected; and the inductor is connected in parallel with the antenna body. The inductor DC grounding structure has the advantages of simple structure, small dimension restriction, low cost and the like.
Description
(1) technical field:
The invention belongs to the mobile communication antenna field, be specifically related to use the mobile communication antenna of inductance DC earthing.
(2) background technology:
Along with the develop rapidly of wireless communication technique, the frequency that wireless telecommunications system uses is more next high, and the phenomenon of the equipment destruction of being struck by lightning is also come many; Therefore, take anti-thunderbolt measure indirect protection communication apparatus and the demand of guaranteeing personal security just more and more urgent to communication antenna.Lightning protection is exactly to guide the direct current that thunder and lightning causes into the earth, and concrete mode is a DC earthing.
The antenna DC earthing adopts 1/4 wavelength short-circuit line mostly at present; 1/4 wavelength short-circuit line is for the input impedance approximates infinity of this frequency range radiofrequency signal; Can stop the radiofrequency signal inflow place; And for direct current impedance very I fully it is imported ground, so be a kind of lightning protection measures of ground connection effectively easily.This earthing mode has certain space requirement, for unusual compact miniature antenna of this class formation of terminal antenna or the very complicated antenna for base station of feeding network, does not have enough spaces to adopt 1/4 wavelength short-circuit line ground connection, and this method just is very limited.
Inductance is as basic radio frequency components and parts, and it then is similar to the open-circuit impedance infinity for the approximate short circuit of direct current for high-frequency current, can play to stop radiofrequency signal and guide galvanic effect.The present invention utilize just this characteristic with inductance as the DC earthing carrier, guarantee on the one hand successfully to guide ground to direct current into, stoped passing through of high-frequency signal on the other hand again, the useful radiofrequency signal of assurance antenna radiate rather than imports ground.Inductance can adopt integrated form or Wound-rotor type, and induction structure is simple, occupies little space, and does not receive antenna size restrictions; Because inductance has been introduced induction reactance, concrete adjusting can be played the effect of coupling antenna impedance simultaneously.
(3) summary of the invention:
In order to overcome the deficiency of prior art; The objective of the invention is to: receive size restrictions can't adopt the lightning-arrest difficult problem of 1/4 wavelength short-circuit line DC earthing to the mobile communication antenna, proposed a kind of simple in structure, DC earthing structure that size restrictions is little, with low cost.
The present invention realizes through following technical scheme:
A kind of inductance DC earthing structure of antenna comprises antenna body, and this antenna body comprises radiating doublet and earth terminal, is electrically connected with at least one inductance between described radiating doublet and the earth terminal, and this inductance is parallelly connected with described antenna body.
The present invention adopts the inductance DC earthing to realize above-mentioned purpose, and with a parallelly connected inductance between radiating doublet and the earth terminal, when on the radiating doublet direct current being arranged, direct current fails to be convened for lack of a quorum and passes to earth terminal through this inductance and get on.The big I of this inductance value requires to select according to antenna match.
That the present technique scheme has is simple in structure, receive characteristics such as antenna size restrictions is little, with low cost.
As the improvement of technique scheme, further technical scheme of the present invention is following:
Further, above-mentioned inductance is the integrated form inductance.
Further, above-mentioned inductance is the Wound-rotor type inductance.
Further, above-mentioned inductance is a chip inductor.
Further, above-mentioned inductance one end is welded on the described radiating doublet, and the other end is welded on the described earth terminal.
Further, above-mentioned antenna body is a mobile communication terminal antenna.
Further, above-mentioned antenna body is an antenna of mobile communication base station.
As the further popularization of technique scheme, said antenna can need DC earthing and receive spatial constraints can't adopt the antenna of 1/4 wavelength ground short circuit line for any.
(4) description of drawings:
Fig. 1 is a perspective view of the present invention;
Fig. 2 is a planar structure sketch map of the present invention.
(5) embodiment:
Below in conjunction with accompanying drawing the present invention is done detailed explanation, but not as to qualification of the present invention:
Shown in accompanying drawing, present embodiment comprises antenna body 2, and this antenna body 2 comprises radiating doublet 1 and earth terminal 4, is electrically connected with at least one inductance 3 between described radiating doublet 1 and the earth terminal 4, and this inductance 3 is parallelly connected with described antenna body 2.
Present embodiment adopts the inductance DC earthing to realize above-mentioned purpose, and with a parallelly connected inductance 3 between radiating doublet 1 and the earth terminal 4, when on the radiating doublet 1 direct current being arranged, direct current fails to be convened for lack of a quorum and passes to earth terminal 4 through this inductance 3 and get on.The big I of this inductance value requires to select according to antenna match.
The inductance 3 preferred chip inductors of present embodiment also can be other inductance such as integrated form inductance or Wound-rotor type inductance, and the kind of inductance is not limited in the present invention, and its electric connection mode is the same with chip inductor, repeats no more at this.
The antenna body 1 of present embodiment is a mobile communication antenna, but is not limited to this, and also can further be generalized to anyly needs DC earthing and receive spatial constraints can't adopt the antenna of 1/4 wavelength ground short circuit line.
The foregoing description is a preferred embodiments of the present invention; But execution mode of the present invention is not limited thereto; Other are any not to deviate from change, the modification done under spirit of the present invention and the principle, substitute, combination, simplify; Be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. the inductance DC earthing structure of an antenna; Comprise antenna body; This antenna body comprises radiating doublet and earth terminal, it is characterized in that: be electrically connected with at least one inductance between described radiating doublet and the earth terminal, this inductance is parallelly connected with described antenna body.
2. the inductance DC earthing structure of a kind of antenna according to claim 1, it is characterized in that: described inductance is the integrated form inductance.
3. the inductance DC earthing structure of a kind of antenna according to claim 1, it is characterized in that: described inductance is the Wound-rotor type inductance.
4. the inductance DC earthing structure of a kind of antenna according to claim 1, it is characterized in that: described inductance is a chip inductor.
5. according to the inductance DC earthing structure of each described a kind of antenna of claim 1-4, it is characterized in that: described inductance one end is welded on the described radiating doublet, and the other end is welded on the described earth terminal.
6. according to the inductance DC earthing structure of each described a kind of antenna of claim 1-4, it is characterized in that: described antenna body is a mobile communication antenna.
7. the inductance DC earthing structure of a kind of antenna according to claim 5, it is characterized in that: described antenna body is a mobile communication antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100027679A CN102544727A (en) | 2012-01-05 | 2012-01-05 | Inductor DC grounding structure for antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100027679A CN102544727A (en) | 2012-01-05 | 2012-01-05 | Inductor DC grounding structure for antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102544727A true CN102544727A (en) | 2012-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100027679A Pending CN102544727A (en) | 2012-01-05 | 2012-01-05 | Inductor DC grounding structure for antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102544727A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104885296A (en) * | 2013-12-31 | 2015-09-02 | 华为终端有限公司 | Loop antenna and mobile terminal |
| CN106550391A (en) * | 2015-09-23 | 2017-03-29 | 中兴通讯股份有限公司 | A kind of antenna is in level detecting apparatus, method and base station |
| CN116887551A (en) * | 2023-09-07 | 2023-10-13 | 荣耀终端有限公司 | Electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050052336A1 (en) * | 2003-09-09 | 2005-03-10 | Mccarthy Robert Daniel | Antenna |
| KR20100117179A (en) * | 2009-04-24 | 2010-11-03 | 주식회사 이엠따블유 | Surface mount technology metamaterial antenna apparatus having dual land structure and communication apparatus using the antenna apparatus |
| CN102104193A (en) * | 2010-12-01 | 2011-06-22 | 中兴通讯股份有限公司 | Multiple input multiple output antenna system |
| CN201927704U (en) * | 2010-11-18 | 2011-08-10 | 比亚迪股份有限公司 | Multi-band patch antenna |
-
2012
- 2012-01-05 CN CN2012100027679A patent/CN102544727A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050052336A1 (en) * | 2003-09-09 | 2005-03-10 | Mccarthy Robert Daniel | Antenna |
| KR20100117179A (en) * | 2009-04-24 | 2010-11-03 | 주식회사 이엠따블유 | Surface mount technology metamaterial antenna apparatus having dual land structure and communication apparatus using the antenna apparatus |
| CN201927704U (en) * | 2010-11-18 | 2011-08-10 | 比亚迪股份有限公司 | Multi-band patch antenna |
| CN102104193A (en) * | 2010-12-01 | 2011-06-22 | 中兴通讯股份有限公司 | Multiple input multiple output antenna system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104885296A (en) * | 2013-12-31 | 2015-09-02 | 华为终端有限公司 | Loop antenna and mobile terminal |
| CN104885296B (en) * | 2013-12-31 | 2018-06-19 | 华为终端（东莞）有限公司 | Loop aerial and mobile terminal |
| CN106550391A (en) * | 2015-09-23 | 2017-03-29 | 中兴通讯股份有限公司 | A kind of antenna is in level detecting apparatus, method and base station |
| WO2017049852A1 (en) * | 2015-09-23 | 2017-03-30 | 中兴通讯股份有限公司 | Device, method, and base station for detecting whether antenna is in place |
| CN116887551A (en) * | 2023-09-07 | 2023-10-13 | 荣耀终端有限公司 | Electronic equipment |
| CN116887551B (en) * | 2023-09-07 | 2023-12-12 | 荣耀终端有限公司 | Electronic equipment |
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Application publication date: 20120704 |