CN203883127U - Broadband antenna with resonance type feed structure - Google Patents
Broadband antenna with resonance type feed structure Download PDFInfo
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- CN203883127U CN203883127U CN201420168249.9U CN201420168249U CN203883127U CN 203883127 U CN203883127 U CN 203883127U CN 201420168249 U CN201420168249 U CN 201420168249U CN 203883127 U CN203883127 U CN 203883127U
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- resonant
- resonant circuit
- antenna
- circuit
- antenna element
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- 239000003990 capacitor Substances 0.000 claims description 10
- 230000005404 monopole Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 5
- 238000010295 mobile communication Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 230000013011 mating Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 230000000191 radiation effect Effects 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model provides a broadband antenna with a resonance type feed structure. The broadband antenna comprises an antenna element and a first resonance circuit, wherein the antenna element and the first resonance circuit are separated from each other. The antenna element is connected to a ground potential of a mobile phone circuit board through a grounding circuit, the first resonance circuit comprises a resonance element and a first inductor in series connection with the resonance element, the first inductor is connected to a feed circuit through a connecting circuit, and the feed circuit is connected to a signal source of the mobile phone circuit board. In the broadband antenna with the resonance type feed structure, under the condition that the antenna element is simple in structure, the bandwidth requirement of 4GLTE communication is met, and the bandwidth of the antenna can cover a plurality of mobile communication frequency bands at a time.
Description
Technical field
The utility model relates to mobile communication antenna field, particularly a kind of broad-band antenna that utilizes resonant feed structure.
Background technology
Along with the 4G LTE arrival in communication epoch, mobile phone market is more and more higher to the bandwidth requirement of antenna for mobile phone, and in the low-frequency range (698-960MHz) of LTE, the characteristic of the disposable covering of the beamwidth of antenna will significantly reduce manufacture and the R&D costs of antenna especially.But for meeting the requirement of modern mobile phone on attractive in appearance to structure, mobile phone thickness is more and more thinner, it is complicated that internal environment is tending towards, and causes the utilized space of antenna in mobile phone more and more less, directly affects the band merit of antenna.
Fig. 1 is the structural representation of existing antenna for mobile phone, the shape of antenna element 10 is only schematic, can convert according to the interior spatial structure of mobile phone, antenna element 10 is connected to the earth potential of circuit board of mobile phone 10 by ground path 11, resonant element 20 is connected to the signal source on circuit board of mobile phone 10 by feeder line 21.
Figure 2 shows that the reflection coefficient curve of antenna for mobile phone in Fig. 1, reflection coefficient curve can find out that existing antenna for mobile phone is at low-frequency range ω
lthe coverage property of bandwidth very limited, how to improve the coverage property of antenna for mobile phone, be current problem demanding prompt solution.
Utility model content
The utility model proposes a kind of broad-band antenna that utilizes resonant feed structure, solved the little problem of antenna for mobile phone bandwidth coverage in prior art.
The technical solution of the utility model is achieved in that
A broad-band antenna that utilizes resonant feed structure, comprising: the antenna element of released state and the first resonant circuit; Antenna element is connected to the earth potential of circuit board of mobile phone by ground path, described the first resonant circuit comprises the resonant element and the first inductor that are connected in series, described the first inductor is connected to feeder line by connection line, and feeder line is connected to the signal source on circuit board of mobile phone.
Alternatively, described the first resonant circuit is monopole antenna structure.
Alternatively, described antenna element, the first resonant circuit and circuit board are at grade.
Alternatively, described antenna element and the first resonant circuit are at same plane and higher than circuit board place plane.
Alternatively, described antenna element and the first resonant circuit are in different planes.
Alternatively, the broad-band antenna that utilizes resonant feed structure of the present utility model also comprises the second resonant circuit, described the second resonant circuit comprises the second inductor and the first capacitor that are connected in series, one end of the second resonant circuit is connected to described feeder line by connection line, and the other end of the second resonant circuit is connected to described ground path by connection line; Described the second resonant circuit is annular resonant mode structure, is coupled by Electric and magnetic fields and described antenna element.
Alternatively, the broad-band antenna that utilizes resonant feed structure of the present utility model also comprises N resonant circuit in parallel, N is greater than or equal to 1 integer, each of described N resonant circuit in parallel comprises the inductor and the capacitor that are connected in series mutually, its one end is connected to described feeder line by connection line, and its other end is connected to described ground path by connection line.
Alternatively, described antenna element, the first resonant circuit, the second resonant circuit and circuit board are at grade.
Alternatively, described antenna element, the first resonant circuit, the second resonant circuit are at same plane and higher than circuit board place plane.
Alternatively, described antenna element and the first resonant circuit and the second resonant circuit are in Different Plane.
The beneficial effects of the utility model are: under the simply constructed condition of antenna element, reach the bandwidth requirement of 4G LTE communication, and, make the multiple mobile communication frequency ranges of the disposable covering of bandwidth of antenna.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of existing antenna for mobile phone;
Fig. 2 is the reflection coefficient curve of antenna for mobile phone in Fig. 1;
Fig. 3 is the structural representation of an embodiment of the utility model broad-band antenna of utilizing resonant feed structure;
Fig. 4 is the reflection coefficient curve of embodiment in Fig. 3;
Fig. 5 is the structural representation that the utility model utilizes another embodiment of the broad-band antenna of resonant feed structure;
Fig. 6 is the reflection coefficient curve of another embodiment in Fig. 5.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Existing antenna for mobile phone is at low-frequency range ω
lthe coverage property of bandwidth very limited, the utility model provides a kind of broad-band antenna that utilizes resonant feed structure, constructs under foolproof condition at antenna element, reaches the bandwidth requirement of 4G LTE communication.
As shown in Figure 3, in an embodiment of a kind of broad-band antenna that utilizes resonant feed structure of the present utility model, comprising: the antenna element 10 of released state and the first resonant circuit 200; Antenna element 10 is connected to the earth potential of circuit board of mobile phone by ground path 11, the first resonant circuit 200 comprises the resonant element 20 and the first inductor 22 that are connected in series, the first inductor 22 is connected to feeder line 21 by connection line, and feeder line 21 is connected to the signal source on circuit board of mobile phone.
In the first resonant circuit 200 and antenna element 10 structures, it is released state, between the first resonant circuit 200 and antenna element 10, there is parasitic capacitance, be coupled by this parasitic capacitance, the highfield excitation antenna element 10 being produced by the first resonant circuit 200, thereby jointly produce radiation effect, improve bandwidth performance.The first inductor 22 plays very important effect, adjusts the impedance slope of the first resonant circuit by the first capacitor 22, makes itself and antenna element reach the effect of mating.Coupling coefficient between antenna element 10 and the first resonant circuit 200 is by the interval determination between length and the first resonant circuit 200 and the antenna element 10 of the inductance value of the first inductor, the first resonant circuit 200.
As shown in Figure 4, the embodiment shown in Fig. 3 is at low-frequency range ω
lbandwidth, due to the regulating action of the first inductor, at ω
lplace produces resonance, has widened at low-frequency range ω
lbandwidth, improved bandwidth performance.
Preferably, above-mentioned the first resonant circuit 200 is monopole antenna structure.
Preferably, above-mentioned antenna element 10, the first resonant circuit 200 and circuit board 30 are at grade; Or above-mentioned antenna element 10 and the first resonant circuit 200 are at same plane and higher than circuit board 30 place planes; Or described antenna element 10 and the first resonant circuit 200 are in different planes.
As shown in Figure 5, the utility model utilizes in another embodiment of broad-band antenna of resonant feed structure, comprise entire infrastructure embodiment illustrated in fig. 3, also comprise the second resonant circuit 400, the second resonant circuit 400 comprises the second inductor 41 and the first capacitor 42 that are connected in series, the sequence of positions of the second inductor 41 and the first capacitor 42 is only schematic, can adjust arbitrarily, the other end that one end of the second resonant circuit 400 is connected to feeder line 21, the second resonant circuits 400 by connection line is connected to ground path 11 by connection line.The connected mode of the second resonant circuit 400 shown in Fig. 5 is a preferred implementation, one end of the second resonant circuit 400 is connected to feeder line 21, the second resonant circuits 400 by the identical connection line other end with the first resonant circuit 200 is connected to ground path 11 with antenna element 10 by identical connection line.
The first inductor 22 is adjusted the impedance slope of the first resonant circuit 200 in low-frequency range, makes itself and antenna element reach the effect of mating; The second inductor 41 and the first capacitor 42 are adjusted the impedance slope of the second resonant circuit 400 at high band, make itself and antenna element reach the effect of mating.
As shown in Figure 5 and Figure 6, the first resonant circuit 200 is released state with antenna element 10, between the first resonant circuit 200 and antenna element 10, pass through field coupled, the highfield excitation antenna element 10 being produced by the first resonant circuit 200, thereby make antenna element 10 and the common radiation effect that produces of the first resonant circuit 200, improve the beamwidth of antenna at low-frequency range ω
lperformance; The second resonant circuit 400 is annular resonant mode structure, antenna element 10 and the second resonant circuit 400 are coupled by Electric and magnetic fields, the Electric and magnetic fields effect excitation antenna element 10 being produced by the second resonant circuit 400, thereby make antenna element 10 and the common radiation effect that produces of the second resonant circuit 400, improve the beamwidth of antenna at high band ω
hperformance.
Preferably, above-mentioned antenna element 10, the first resonant circuit 200, the second resonant circuit 400 and circuit board 30 are at grade; Or above-mentioned antenna element 10, the first resonant circuit 200, the second resonant circuit 400 are at same plane and higher than circuit board 30 place planes; Or above-mentioned antenna element 10 and the first resonant circuit 200 and the second resonant circuit 400 are in Different Plane.
The utility model utilizes in another embodiment of broad-band antenna of resonant feed structure, comprise entire infrastructure embodiment illustrated in fig. 5, also comprise N resonant circuit in parallel, N is greater than or equal to 1 integer, each of described N resonant circuit in parallel comprises the inductor and the capacitor that are connected in series mutually, its one end is connected to described feeder line by connection line, and its other end is connected to described ground path by connection line.By the setting to inductor and capacitor, adjust the impedance slope of each phase resonance circuit, make itself and antenna element reach the effect of mating.
The broad-band antenna that utilizes resonant feed structure of the present utility model, under the simply constructed condition of antenna element, reaches the bandwidth requirement of 4G LTE communication, and, make the multiple mobile communication frequency ranges of the disposable covering of bandwidth of antenna.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. a broad-band antenna that utilizes resonant feed structure, is characterized in that, comprising: the antenna element of released state and the first resonant circuit; Antenna element is connected to the earth potential of circuit board of mobile phone by ground path, described the first resonant circuit comprises the resonant element and the first inductor that are connected in series, described the first inductor is connected to feeder line by connection line, and feeder line is connected to the signal source on circuit board of mobile phone.
2. the broad-band antenna that utilizes resonant feed structure as claimed in claim 1, is characterized in that, the monopole antenna structure that described the first resonant circuit is monopole antenna structure or multiple parallel connections.
3. the broad-band antenna that utilizes resonant feed structure as claimed in claim 1 or 2, is characterized in that, described antenna element, the first resonant circuit and circuit board are at grade.
4. the broad-band antenna that utilizes resonant feed structure as claimed in claim 1 or 2, is characterized in that, described antenna element and the first resonant circuit are at same plane and higher than circuit board place plane.
5. the broad-band antenna that utilizes resonant feed structure as claimed in claim 1 or 2, is characterized in that, described antenna element and the first resonant circuit are in different planes.
6. the broad-band antenna that utilizes resonant feed structure as claimed in claim 1 or 2, it is characterized in that, also comprise the second resonant circuit, described the second resonant circuit comprises the second inductor and the first capacitor that are connected in series, one end of the second resonant circuit is connected to described feeder line by connection line, and the other end of the second resonant circuit is connected to described ground path by connection line; Described the second resonant circuit is annular resonant mode structure, is coupled by Electric and magnetic fields and described antenna element.
7. the broad-band antenna that utilizes resonant feed structure as claimed in claim 6, it is characterized in that, also comprise N resonant circuit in parallel, N is greater than or equal to 1 integer, each of described N resonant circuit in parallel comprises the inductor and the capacitor that are connected in series mutually, its one end is connected to described feeder line by connection line, and its other end is connected to described ground path by connection line.
8. the broad-band antenna that utilizes resonant feed structure as claimed in claim 6, is characterized in that, described antenna element, the first resonant circuit, the second resonant circuit and circuit board are at grade.
9. the broad-band antenna that utilizes resonant feed structure as claimed in claim 6, is characterized in that, described antenna element, the first resonant circuit, the second resonant circuit are at same plane and higher than circuit board place plane.
10. the broad-band antenna that utilizes resonant feed structure as claimed in claim 6, is characterized in that, described antenna element and the first resonant circuit and the second resonant circuit are in Different Plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168249.9U CN203883127U (en) | 2014-04-01 | 2014-04-01 | Broadband antenna with resonance type feed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168249.9U CN203883127U (en) | 2014-04-01 | 2014-04-01 | Broadband antenna with resonance type feed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203883127U true CN203883127U (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420168249.9U Expired - Lifetime CN203883127U (en) | 2014-04-01 | 2014-04-01 | Broadband antenna with resonance type feed structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203883127U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928761A (en) * | 2014-04-01 | 2014-07-16 | 刘扬 | Broadband antenna with resonance type feed structure adopted |
| CN107104271A (en) * | 2017-04-07 | 2017-08-29 | 广东精点数据科技股份有限公司 | A kind of low frequency loaded antenna |
| CN107331950A (en) * | 2017-06-16 | 2017-11-07 | 常州柯特瓦电子有限公司 | A kind of circular 4G LTE MIMO car antennas |
-
2014
- 2014-04-01 CN CN201420168249.9U patent/CN203883127U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928761A (en) * | 2014-04-01 | 2014-07-16 | 刘扬 | Broadband antenna with resonance type feed structure adopted |
| CN103928761B (en) * | 2014-04-01 | 2018-02-02 | 刘扬 | A kind of broad-band antenna using resonant feed structure |
| CN107104271A (en) * | 2017-04-07 | 2017-08-29 | 广东精点数据科技股份有限公司 | A kind of low frequency loaded antenna |
| CN107331950A (en) * | 2017-06-16 | 2017-11-07 | 常州柯特瓦电子有限公司 | A kind of circular 4G LTE MIMO car antennas |
| CN107331950B (en) * | 2017-06-16 | 2021-01-05 | 常州柯特瓦电子有限公司 | Circular 4G LTE MIMO vehicle antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN HANYANG ANTENNA DESIGN CO., LTD. Free format text: FORMER OWNER: LIU YANG Effective date: 20150113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 266000 QINGDAO, SHANDONG PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150113 Address after: 518000 Guangdong city of Shenzhen province Nanshan District high tech Zone Technology in two Road No. 39 Wanji Industrial Park W403-1 Patentee after: Hanyang Shenzhen Antenna Design Co., Ltd. Address before: Shandong Province, Qingdao City, 266000 West Road No. 83 four unit 202 Wu Patentee before: Liu Yang |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141015 Effective date of abandoning: 20180202 |
|
| AV01 | Patent right actively abandoned |