CN103794868A - Antenna assembly - Google Patents
Antenna assembly Download PDFInfo
- Publication number
- CN103794868A CN103794868A CN201210427298.5A CN201210427298A CN103794868A CN 103794868 A CN103794868 A CN 103794868A CN 201210427298 A CN201210427298 A CN 201210427298A CN 103794868 A CN103794868 A CN 103794868A
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- hollow out
- out section
- antenna module
- frequency range
- ground plane
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Abstract
The invention provides an antenna assembly comprising a substrate, a ground plane, a feed-in portion, and a radiation portion. The substrate comprises a top surface and a bottom surface arranged opposite to the top surface. The ground plane is disposed on the top surface and is used for connecting the antenna assembly with ground. The feed-in portion is disposed on the bottom surface and is partially extended to the ground plane. The radiation portion is formed by hollowing out the ground plane and is partially extended to an overlapped part of the feed-in portion and the ground plane so as to further form a slot antenna. The antenna assembly may widen the bandwidth of an antenna and is simultaneously convenient for a purpose of miniaturization development of wireless communication devices.
Description
Technical field
The present invention relates to a kind of antenna, relate in particular to the wider antenna module of a kind of frequency range.
Background technology
In radio communication device, be used for transmitting, reception radio wave to transmit, to exchange the antenna assembly of radio data signal, one of most important assembly in radio communication device beyond doubt.
The communication system of various use different operating frequency bands and the continuous appearance of application in recent years, makes the design of antenna towards the broad-band antenna development of containing multiple band system band.In the various wireless communication system that uses different operating frequency band, all can carry out signal transmission in order to ensure radio communication device, this antenna assembly must be able to be received and dispatched the signal of multiple different frequency.On the other hand, broad-band antenna general structure is comparatively complicated, but because the outward appearance of Anneta module also trends towards frivolous and microminiaturization, makes Antenna Design except broadband, also needs to possess the feature that has miniaturization simultaneously.How under the prerequisite that does not increase radio communication device volume, to make antenna there is the characteristic in broadband, become the challenge of Ge Jia antenna manufacturer maximum.
Summary of the invention
In view of above situation, be necessary to provide the broad-band antenna assembly of the wider and small volume of a kind of frequency range.
A kind of antenna module, comprise substrate, ground plane, feeding portion and Department of Radiation, the bottom surface that described substrate comprises end face and is oppositely arranged with described end face, described ground plane is arranged on described end face and is used to antenna module that ground connection is provided, described feeding portion is laid on described bottom surface, and partly extends to described ground plane, and described Department of Radiation is to be formed by this ground plane hollow out, and partly extend to the overlapping part of described feeding portion and this ground plane, and then form a slot antenna.
Above-mentioned antenna module, by described ground plane is carried out to hollow out processing, to form corresponding Department of Radiation, and is coupled described Department of Radiation and described feeding portion.So, this antenna module does not need additionally to arrange corresponding radiant body again, and the size that just can effectively promote antenna bandwidth and dwindle antenna reaches and reduces antenna manufacturing cost, is convenient to the object of the miniaturization development of radio communication device.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the antenna module of preferred embodiments of the present invention;
Fig. 2 is the floor map of feeding portion in the antenna module shown in Fig. 1;
Fig. 3 is the floor map of Department of Radiation in the antenna module shown in Fig. 1;
Fig. 4 is the size schematic diagram of feeding portion and Department of Radiation in the antenna module shown in Fig. 1;
Fig. 5 is that the antenna module shown in Fig. 1 adopts return loss (Return Loss, the RL) schematic diagram obtaining by simulation software and actual test after Fig. 4 illustrated dimension;
Fig. 6 is that the antenna module shown in Fig. 1 adopts the radiation efficiency schematic diagram recording after Fig. 4 illustrated dimension.
Main element symbol description
| |
100 |
| |
10 |
| |
20 |
| |
30 |
| Department of |
50 |
| |
101 |
| |
102 |
| The first hollow out |
51 |
| The second hollow out |
53 |
| The 3rd hollow out |
55 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, preferred embodiments of the present invention provides a kind of antenna module 100, and it can be applicable in the radio communication devices such as mobile phone.This antenna module 100 comprises substrate 10, ground plane 20, feeding portion 30 and Department of Radiation 50.
This substrate 10 can adopt the dielectric materials such as epoxy resin fiberglass (FR4) to make.In the present embodiment, the dielectric coefficient of this dielectric material is ε
r.This substrate 10 is roughly flat cuboid, comprises end face 101 and bottom surface 102 relative with described end face 101 and that be arranged in parallel.
This ground plane 20 is arranged on the end face 101 of substrate 10, is used to antenna module 100 that ground connection is provided.In the present embodiment, this ground plane 20 is one deck conductive metal foil of plating on end face 101, for example Copper Foil.
In the present embodiment, this feeding portion 30 is a microstrip line (microstrip line).This feeding portion 30 is mainly laid in the bottom surface 102 of described substrate 10, and extends to described ground plane 20.The radio circuit (not shown) that this feeding portion 30 is positioned at 102Shang one end, described bottom surface and this radio communication device is electrically connected, and contains the wireless signal of the first frequency range, the second frequency range and the 3rd frequency range for obtain electric current from this radio circuit with transmitting-receiving.The other end that this feeding portion 30 is positioned on bottom surface 102 extends to described ground plane 20, and then partly overlaps with this ground plane 20.This radio circuit is for modulating baseband signal or demodulation radiofrequency signal.In the present embodiment, this feeding portion 30 is one to have the vertical bar shoestring of even width.In addition, the width of this feeding portion 30, length and shape can be adjusted according to impedance matching, and then make described antenna module 100 have maximum available impedance frequency range.
This Department of Radiation 50 is that hollow out forms on this ground plane 20, the conductive metal foil on described ground plane 20 surfaces is hollowed out to processing, and part extends to the part (being described feeding portion 30 part overlapping with ground plane 20) that described feeding portion 30 is positioned at ground plane 20, to expose the dielectric material of described substrate 10, and then form a slot antenna.This Department of Radiation 50 comprises the first hollow out section 51, the second hollow out section 53 and the 3rd hollow out section 55.In the present embodiment, this first hollow out section 51 and the second hollow out section 53 are all straight sheet, and both relatively and be arranged in parallel.The 3rd hollow out section 55 is also straight sheet, and it is located between this first hollow out section 51 and the second hollow out section 53, and its two ends are respectively with this first hollow out section 51 and second hollow out section 53 is vertical is connected, and then forms " H " type structure of a sealing.
See also Fig. 2, be appreciated that feeding portion 30 of the present invention also can be other shape, for example, there is vertical bar band shape (a), curved shape (b) or the tilted shape (c) of non-homogeneous width.
See also Fig. 3, be appreciated that Department of Radiation 50 of the present invention also can be other structure, as long as guarantee that the first hollow out section 51, the second hollow out section 53 and the 3rd hollow out section 55 in this Department of Radiation 50 form the enclosed construction of " H " type.For example described the first hollow out section 51 and the second hollow out section 53 are set to various curved shapes, and the 3rd hollow out section 55 is still straight sheet, and is vertically connected to described the first hollow out section 51 and the second hollow out section 53.
See also Fig. 4, if the width of feeding portion 30 is Ws, the length that is positioned at the part of ground plane 20 in feeding portion 30 is Ls, and the distance in this feeding portion 30 between part and the 3rd hollow out section 55 of ground plane 20 is f, the length of the 3rd hollow out section 55 is b, and width is w.By regulating above-mentioned first group of parameter (to be Ws, Ls, f, b and w), can to make described antenna module 100 be operated in respectively described the first frequency range, the second frequency range and the 3rd frequency range.
In addition, if the distance of the 3rd hollow out section 55 to first hollow out section 51 one end is L1, the distance of the 3rd hollow out section 55 to first hollow out section 51 other ends is L2, the distance of the 3rd hollow out section 55 to second hollow out section 53 one end is L3, and the distance of the 3rd hollow out section 55 to second hollow out section 53 other ends is L4.Regulating on the basis of this first group of parameter, by regulating above-mentioned second group of parameter (being L1-L4), can the described antenna module 100 of corresponding adjusting respectively at the frequency range of this first frequency range, the second frequency range and the 3rd frequency range.Particularly, this first frequency range, the second frequency range and centre frequency f corresponding to the 3rd frequency range
r1, f
r2and f
r3meet respectively formula (1)-(3):
Wherein, parameter c is the light velocity, ε
efffor effective permittivity, it meets formula (4):
（4）
In the time that described antenna module 100 is worked, signal can be from described feeding portion 30 feed-ins, and the coupling of passing through this feeding portion 30 and this Department of Radiation 50 obtains the current propagation path of different length, to produce different current signals, make this antenna module 100 can be in first frequency (1.575GHz), second frequency (2.4GHz) and the 3rd frequency (5.2GHz) produce corresponding resonance mode, thereby can be in described the first frequency range (1.555-1.611GHz), under the second frequency range (2.38-2.834GHz) and the 3rd frequency range (4.66-6.3GHz) frequency range, work, and obtain wider frequency range and radiation efficiency preferably.
See also Fig. 5 and Fig. 6, in the present embodiment, as the thickness h=0.7mm of substrate 10, ε
r=4.2, Ws=2mm, w=2.9mm, b=3mm, Ls=5.6mm, f=29.2mm, L1=34.5mm, L2=7mm, when L3=29.6mm and L4=7mm, no matter be to test (dotted line shown in ginseng Fig. 5) or actual test (solid line shown in ginseng Fig. 5) by simulation software, this antenna module 100 all can meet antenna work designing requirement under the first frequency range (1.555-1.611GHz), the second frequency range (2.38-2.834GHz) and the 3rd frequency range (4.66-6.3GHz), and has preferably radiation efficiency.
Claims (10)
1. an antenna module, comprise substrate, ground plane, feeding portion and Department of Radiation, the bottom surface that described substrate comprises end face and is oppositely arranged with described end face, described ground plane is arranged on described end face and is used to antenna module that ground connection is provided, described feeding portion is laid on described bottom surface, and partly extends to described ground plane, and described Department of Radiation is to be formed by this ground plane hollow out, and partly extend to the overlapping part of described feeding portion and this ground plane, and then form a slot antenna.
2. antenna module as claimed in claim 1, is characterized in that: this feeding portion is a microstrip line.
3. antenna module as claimed in claim 1, is characterized in that: adjust width, length and the shape of described feeding portion according to impedance matching, and then adjust the impedance frequency range of described antenna module.
4. antenna module as claimed in claim 1, is characterized in that: described Department of Radiation is to hollow out processing by the conductive metal foil to described ground plane surface, forms to expose the dielectric material of described substrate.
5. antenna module as claimed in claim 1, it is characterized in that: described Department of Radiation comprises the first hollow out section, the second hollow out section and the 3rd hollow out section, this the first hollow out section is relative with the second hollow out section and be arranged in parallel, the 3rd hollow out section is located between this first hollow out section and the second hollow out section, and its two ends are respectively with this first hollow out section and second hollow out section is vertical is connected, and then form " H " type structure of a sealing.
6. antenna module as claimed in claim 5, it is characterized in that: by adjusting the width of described feeding portion, described feeding portion is positioned at the length of the part of described ground plane, the distance of this feeding portion between part and the 3rd hollow out section of described ground plane, the width of the length of the 3rd hollow out section and the 3rd hollow out section, makes described antenna module be operated in respectively the first frequency range, the second frequency range and the 3rd frequency range.
7. antenna module as claimed in claim 6, it is characterized in that: by adjusting the distance of the 3rd hollow out section to the first hollow out section one end, the distance of the 3rd hollow out section to the first hollow out section other end, the distance of the distance of the 3rd hollow out section to the second hollow out section one end and the 3rd hollow out section to the second hollow out section other end, to regulate the frequency range of described antenna module respectively at this first frequency range, the second frequency range and the 3rd frequency range.
8. antenna module as claimed in claim 6, is characterized in that: described the first frequency range is 1.555-1.611GHz.
9. antenna module as claimed in claim 6, is characterized in that: described the second frequency range is 2.38-2.834GHz.
10. antenna module as claimed in claim 6, is characterized in that: described the 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 true CN103794868A (en) | 2014-05-14 |
| CN103794868B 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) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514594A (en) * | 2014-10-13 | 2016-04-20 | 深圳富泰宏精密工业有限公司 | Slot antenna and wireless communication device with the same |
| CN106571529A (en) * | 2015-10-08 | 2017-04-19 | 智易科技股份有限公司 | Multi-frequency antenna |
| CN107093790A (en) * | 2016-02-18 | 2017-08-25 | 达意科技股份有限公司 | 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0590826A (en) * | 1991-09-26 | 1993-04-09 | Toshiba Corp | Microstrip antenna |
| US20020008664A1 (en) * | 1999-12-22 | 2002-01-24 | Hang-Ku Bark | Planar microstrip patch antenna for enhanced antenna efficiency and gain |
| CN202474219U (en) * | 2011-09-29 | 2012-10-03 | 林伟 | High-efficiency antenna transmit-receive apparatus |
-
2012
- 2012-10-31 CN CN201210427298.5A patent/CN103794868B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0590826A (en) * | 1991-09-26 | 1993-04-09 | Toshiba Corp | Microstrip antenna |
| US20020008664A1 (en) * | 1999-12-22 | 2002-01-24 | Hang-Ku Bark | Planar microstrip patch antenna for enhanced antenna efficiency and gain |
| CN202474219U (en) * | 2011-09-29 | 2012-10-03 | 林伟 | High-efficiency antenna transmit-receive apparatus |
Non-Patent Citations (1)
| Title |
|---|
| LINDANG，ZHENYALEI，YONGJUNXIE，GAOLINING，AND JUNFAN: "A Compact Microstrip Slot Triple-Band Antenna for WLAN/WiMAX Applications", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514594A (en) * | 2014-10-13 | 2016-04-20 | 深圳富泰宏精密工业有限公司 | Slot antenna and wireless communication device with the same |
| 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 |
| CN107093790A (en) * | 2016-02-18 | 2017-08-25 | 达意科技股份有限公司 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103794868B (en) | 2018-05-22 |
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Granted publication date: 20180522 Termination date: 20211031 |
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