CN103794868B - Antenna module - Google Patents
Antenna module Download PDFInfo
- Publication number
- CN103794868B CN103794868B CN201210427298.5A CN201210427298A CN103794868B CN 103794868 B CN103794868 B CN 103794868B CN 201210427298 A CN201210427298 A CN 201210427298A CN 103794868 B CN103794868 B CN 103794868B
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- Prior art keywords
- hollow out
- out section
- antenna module
- ground plane
- feeding portion
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Abstract
The present invention provides a kind of antenna module, including substrate, ground plane, feeding portion and irradiation unit, the substrate includes top surface and the bottom surface being oppositely arranged with the top surface, the ground plane, which is arranged on the top surface, to be used to provide ground connection for antenna module, the feeding portion is laid on the bottom surface, and extends partially into the ground plane, and the irradiation unit is formed by the ground plane hollow out, and the feeding portion part Chong Die with the ground plane is extended partially into, and then form a slot antenna.The antenna module can improve antenna bandwidth, while the purpose of the miniaturization convenient for wireless communication device.
Description
Technical field
The present invention relates to the wider antenna modules of a kind of antenna more particularly to a kind of bandwidth.
Background technology
In a wireless communication device, for emitting, receive radio wave to transfer, exchange the antenna of radio data signal
Device is undoubtedly one of most important component in wireless communication device.
It is various in recent years using the communication system of different operating frequency band and the emergence of application so that the design court of antenna
Develop to the broad-band antenna for covering multiple band system bands.In order to ensure wireless communication device is in using a variety of of different operating frequency band
Signal transmission can be carried out in wireless communication system, which allows for receiving and dispatching the signal of a variety of different frequencies.It is another
Aspect, broad-band antenna general structure is complex, but since the appearance of Anneta module is also intended to frivolous and micromation so that day
Line is designed in addition to broadband, also needs to be provided simultaneously with the feature of miniaturization.How wireless communication device volume is not being increased
Under the premise of make antenna have broadband characteristic, it has also become the challenge of each antenna manufacturer maximum.
The content of the invention
In view of the above circumstances, it is necessary to provide that a kind of bandwidth is wider and the broad-band antenna component of small volume.
A kind of antenna module, including substrate, ground plane, feeding portion and irradiation unit, the substrate include top surface and with it is described
The bottom surface that top surface is oppositely arranged, the ground plane, which is arranged on the top surface, to be used to provide ground connection, the feed-in for antenna module
Portion is laid on the bottom surface, and extends partially into the ground plane, and the irradiation unit is formed by the ground plane hollow out, and portion
Divide and extend to the feeding portion part Chong Die with the ground plane, and then form a slot antenna.
Above-mentioned antenna module to form corresponding irradiation unit, and causes institute by carrying out hollow processing to the ground plane
Irradiation unit is stated to be coupled with the feeding portion.In this way, the antenna module need not additionally set corresponding radiator again,
It effectively promotes antenna bandwidth and reduces the size of antenna, reaching reduces antenna manufacture cost, convenient for the small-sized of wireless communication device
Change the purpose of development.
Description of the drawings
Fig. 1 is the stereoscopic schematic diagram of the antenna module of better embodiment of the present invention；
Fig. 2 is the floor map of feeding portion in antenna module shown in FIG. 1；
Fig. 3 is the floor map of irradiation unit in antenna module shown in FIG. 1；
Fig. 4 is the scale diagrams of feeding portion and irradiation unit in antenna module shown in FIG. 1；
Fig. 5 is that antenna module shown in FIG. 1 is returned using after Fig. 4 illustrated dimensions by what simulation software and actual test obtained
Ripple is lost（Return Loss, RL）Schematic diagram；
Fig. 6 is antenna module shown in FIG. 1 using the radiation efficiency schematic diagram measured after Fig. 4 illustrated dimensions.
Main element symbol description
| Antenna module | 100 |
| Substrate | 10 |
| Ground plane | 20 |
| Feeding portion | 30 |
| Irradiation unit | 50 |
| Top surface | 101 |
| Bottom surface | 102 |
| First hollow out section | 51 |
| Second hollow out section | 53 |
| 3rd hollow out section | 55 |
Following specific embodiment will be further illustrated the present invention with reference to above-mentioned attached drawing.
Specific embodiment
Referring to Fig. 1, the better embodiment of the present invention provides a kind of antenna module 100, mobile phone can be applied to
It waits in wireless communication devices.The antenna module 100 includes substrate 10, ground plane 20, feeding portion 30 and irradiation unit 50.
Epoxy resin fiberglass can be used in the substrate 10（FR4）Dielectric materials is waited to be made.In the present embodiment, the dielectric
The dielectric coefficient of material is εr.The substantially flat cuboid of the substrate 10 is including top surface 101 and opposite with the top surface 101
And bottom surface 102 arranged in parallel.
The ground plane 20 is arranged on the top surface 101 of substrate 10, for providing ground connection for antenna module 100.In this implementation
In example, which is overlying on one layer of conductive metal foil on top surface 101, such as copper foil for plating.
In the present embodiment, which is a microstrip line（microstrip line）.The feeding portion 30 is mainly laid
In the bottom surface 102 of the substrate 10, and extend to the ground plane 20.The feeding portion 30 is located at one end on the bottom surface 102
It is electrically connected with the radio circuit (not shown) in the wireless communication device, is contained for obtaining electric current from the radio circuit with receiving and dispatching
The wireless signal of the first frequency range of lid, the second frequency range and the 3rd frequency range.The other end that the feeding portion 30 is located on bottom surface 102 then extends
To the ground plane 20, and then partly overlap with the ground plane 20.The radio circuit is for modulating baseband signal or demodulation radio frequency
Signal.In the present embodiment, the vertical bar shoestring which has clean width for one.In addition, the width of the feeding portion 30
Degree, length and shape can be adjusted according to impedance matching, so that the antenna module 100 has maximum available impedance
Bandwidth.
The irradiation unit 50 is formed in hollow out on the ground plane 20, i.e., to the conductive metal foil on 20 surface of ground plane into
Row hollows out processing, and extends partially into the part that the feeding portion 30 is located at ground plane 20（I.e. described feeding portion 30 and ground plane
The part of 20 overlappings）, to expose the dielectric material of the substrate 10, and then form a slot antenna.The irradiation unit 50 includes the
One hollow out section 51, the second hollow out section 53 and the 3rd hollow out section 55.In the present embodiment, the first hollow out section 51 and the second hollow out section
53 be in straight sheet, and the two is opposite and arranged in parallel.3rd hollow out section 55 also in straight sheet, is located in
Between the first hollow out section 51 and the second hollow out section 53, and its both ends is hung down respectively with the first hollow out section 51 and the second hollow out section 53
It is direct-connected to connect, and then form " H " type structure of a closing.
Also referring to Fig. 2, it will be understood that feeding portion 30 of the invention or other shapes, such as with non-homogeneous
The vertical bar banding of width（a）, curved shape（b）Or tilted shape（c）.
Also referring to Fig. 3, it will be understood that irradiation unit 50 of the invention or other structures, as long as ensureing the radiation
The first hollow out section 51, the second hollow out section 53 and the 3rd hollow out section 55 in portion 50 form the enclosed construction of " H " type.It such as will
The first hollow out section 51 and the second hollow out section 53 are arranged to various curved shapes, and the 3rd hollow out section 55 is still in straight piece
Shape, and vertical connection is to the first hollow out section 51 and the second hollow out section 53.
Also referring to Fig. 4, if the width of feeding portion 30 is Ws, the length of the part of ground plane 20 is located in feeding portion 30
For Ls, the distance between the part of ground plane 20 and the 3rd hollow out section 55 are located in the feeding portion 30 for f, the 3rd hollow out section
55 length is b, width w.Then by adjusting above-mentioned first group of parameter（That is Ws, Ls, f, b and w）, may be such that the antenna sets
Part 100 is operated in first frequency range, the second frequency range and the 3rd frequency range respectively.
In addition, the distance of 55 to the first hollow out section of the 3rd hollow out section, 51 one end is set as L1, the 3rd hollow out section 55 to the first
The distance of 51 other end of hollow out section is L2, and the distance of 55 to the second hollow out section of the 3rd hollow out section, 53 one end is L3, and the 3rd engraves
The distance of 55 to the second hollow out section of dead band, 53 other end is L4.Then on the basis of first group of parameter is adjusted, by adjusting
State second group of parameter（That is L1-L4）, the antenna module 100 can be accordingly adjusted respectively at first frequency range, the second frequency range and
The bandwidth of three frequency ranges.Specifically, first frequency range, the second frequency range and the corresponding centre frequency f of the 3rd frequency ranger1、fr2And fr3Respectively
Meet formula（1）-（3）：
（1）
（2）
（3）
Wherein, parameter c be the light velocity, εeffFor effective permittivity, meet formula（4）：
（4）
When the antenna module 100 works, signal can be from 30 feed-in of feeding portion, and passes through the feeding portion 30 with being somebody's turn to do
The coupling of irradiation unit 50 obtains the current propagation path of different length, to generate different current signals so that the antenna module
100 can be in first frequency（1.575GHz）, second frequency（2.4GHz）And the 3rd frequency（5.2GHz）Generate corresponding resonant mode
State, so as in first frequency range（1.555-1.611GHz）, the second frequency range（2.38-2.834GHz）And the 3rd frequency range
（4.66-6.3GHz）It works under frequency range, and obtains wider bandwidth and preferable radiation efficiency.
Also referring to Fig. 5 and Fig. 6, in the present embodiment, as thickness h=0.7mm of substrate 10, εr=4.2, Ws=
When 2mm, w=2.9mm, b=3mm, Ls=5.6mm, f=29.2mm, L1=34.5mm, L2=7mm, L3=29.6mm and L4=7mm, no matter
It is to be tested by simulation software（Join dotted line shown in Fig. 5）Or actual test（Join solid line shown in Fig. 5）, the antenna module 100 in
First frequency range（1.555-1.611GHz）, the second frequency range（2.38-2.834GHz）And the 3rd frequency range（4.66-6.3GHz）Down
Meet Antenna Operation design requirement, and with preferable radiation efficiency.
The antenna module 100 of the present invention to the ground plane 20 by carrying out hollow processing, to form corresponding irradiation unit
50, and so that the irradiation unit 50 is coupled with the feeding portion 30.In this way, the antenna module 100 need not additionally be set again
Corresponding radiator is put, can effectively promote antenna bandwidth and reduces the size of antenna, reaching reduces antenna manufacture cost, is convenient for
The purpose of the miniaturization of wireless communication device.
Claims (9)
1. a kind of antenna module, including substrate, ground plane, feeding portion and irradiation unit, the substrate include top surface and with the top
The bottom surface that face is oppositely arranged, the ground plane, which is arranged on the top surface, to be used to provide ground connection, the feeding portion for antenna module
It is laid on the bottom surface, and extends partially into the ground plane, the irradiation unit is formed by the ground plane hollow out, and part
The feeding portion part Chong Die with the ground plane is extended to, and then forms a slot antenna, the irradiation unit is engraved including first
Dead band, the second hollow out section and the 3rd hollow out section, width, the feeding portion by adjusting the feeding portion are located at the ground plane
The length of part, the feeding portion be located at the distance between part and the 3rd hollow out section of the ground plane, the 3rd hollow out
The length of section and the width of the 3rd hollow out section so that the antenna module is operated in the first frequency range, the second frequency range and the respectively
Three frequency ranges.
2. antenna module as described in claim 1, it is characterised in that：The feeding portion is a microstrip line.
3. antenna module as described in claim 1, it is characterised in that：According to impedance matching adjust the feeding portion width,
Length and shape, and then adjust the impedance bandwidth of the antenna module.
4. antenna module as described in claim 1, it is characterised in that：The irradiation unit is by the ground plane surface
Conductive metal foil carries out hollowing out processing, is formed with exposing the dielectric material of the substrate.
5. antenna module as described in claim 1, it is characterised in that：The first hollow out section is opposite with the second hollow out section and mutual
Be arranged in parallel, the 3rd hollow out section is located between the first hollow out section and the second hollow out section, and its both ends respectively with this first
Hollow out section and the second hollow out section vertical connection, and then form " H " type structure of a closing.
6. antenna module as described in claim 1, it is characterised in that：By adjusting the 3rd hollow out section to the first hollow out section one
The distance at end, the distance of the 3rd hollow out section to the first hollow out section other end, the 3rd hollow out section to second hollow out section one end
The distance of distance and the 3rd hollow out section to the second hollow out section other end, to adjust the antenna module respectively at first frequency
The bandwidth of section, the second frequency range and the 3rd frequency range.
7. antenna module as described in claim 1, it is characterised in that：First frequency range is 1.555-1.611GHz.
8. antenna module as described in claim 1, it is characterised in that：Second frequency range is 2.38-2.834GHz.
9. antenna module as described in claim 1, it is characterised in that：3rd frequency range is 4.66-6.3GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210427298.5A CN103794868B (en) | 2012-10-31 | 2012-10-31 | Antenna module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210427298.5A CN103794868B (en) | 2012-10-31 | 2012-10-31 | Antenna module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103794868A CN103794868A (en) | 2014-05-14 |
| CN103794868B true CN103794868B (en) | 2018-05-22 |
Family
ID=50670328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210427298.5A Expired - Fee Related CN103794868B (en) | 2012-10-31 | 2012-10-31 | Antenna module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103794868B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514594B (en) * | 2014-10-13 | 2018-05-22 | 深圳富泰宏精密工业有限公司 | Slot antenna and the wireless communication device with the slot antenna |
| CN106571529A (en) * | 2015-10-08 | 2017-04-19 | 智易科技股份有限公司 | Multi-frequency antenna |
| CN107093790B (en) * | 2016-02-18 | 2020-05-12 | 元太科技工业股份有限公司 | Slot antenna device |
| CN110493429A (en) * | 2019-08-20 | 2019-11-22 | Oppo广东移动通信有限公司 | The shell and electronic equipment of electronic equipment |
| CN110519424A (en) * | 2019-08-20 | 2019-11-29 | Oppo广东移动通信有限公司 | The shell and electronic equipment of electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0590826A (en) * | 1991-09-26 | 1993-04-09 | Toshiba Corp | Microstrip antenna |
| CN202474219U (en) * | 2011-09-29 | 2012-10-03 | 林伟 | High-efficiency antenna transmit-receive apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6515626B2 (en) * | 1999-12-22 | 2003-02-04 | Hyundai Electronics Industries | Planar microstrip patch antenna for enhanced antenna efficiency and gain |
-
2012
- 2012-10-31 CN CN201210427298.5A patent/CN103794868B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0590826A (en) * | 1991-09-26 | 1993-04-09 | Toshiba Corp | Microstrip antenna |
| CN202474219U (en) * | 2011-09-29 | 2012-10-03 | 林伟 | High-efficiency antenna transmit-receive apparatus |
Non-Patent Citations (1)
| Title |
|---|
| A Compact Microstrip Slot Triple-Band Antenna for WLAN/WiMAX Applications;LinDang，ZhenYaLei，YongJunXie，GaoLiNing，and JunFan;《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》;20101210;第1178-1181页、图1、图3 * |
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| Publication number | Publication date |
|---|---|
| CN103794868A (en) | 2014-05-14 |
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Granted publication date: 20180522 Termination date: 20211031 |
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| CF01 | Termination of patent right due to non-payment of annual fee |