CN202564541U - Multi-frequency antenna - Google Patents

Multi-frequency antenna Download PDF

Info

Publication number
CN202564541U
CN202564541U CN 201220051199 CN201220051199U CN202564541U CN 202564541 U CN202564541 U CN 202564541U CN 201220051199 CN201220051199 CN 201220051199 CN 201220051199 U CN201220051199 U CN 201220051199U CN 202564541 U CN202564541 U CN 202564541U
Authority
CN
China
Prior art keywords
branch
cabling
antenna
circuit board
printed circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220051199
Other languages
Chinese (zh)
Inventor
李琴芳
俞斌
吴荻
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huizhou Speed Wireless Technology Co Ltd
Original Assignee
Huizhou Speed Wireless Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huizhou Speed Wireless Technology Co Ltd filed Critical Huizhou Speed Wireless Technology Co Ltd
Priority to CN 201220051199 priority Critical patent/CN202564541U/en
Application granted granted Critical
Publication of CN202564541U publication Critical patent/CN202564541U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Support Of Aerials (AREA)

Abstract

The utility model discloses a multi-frequency antenna comprising a printed circuit board, a first branch wiring and a second branch wiring, wherein the first branch wiring and the second branch wiring are arranged on the printed circuit board, and respectively stretch right and left horizontally taking the joint point as the center; a first radiation metal dome which is in parallel with the first branch wiring is arranged above the first branch wiring on the printed circuit board; a second radiation metal dome which is in parallel with the second branch wiring is arranged above the second branch wiring on the printed circuit board; the a first radiation metal dome is connected with the side edge of the first branch wiring; and the second radiation metal dome is grounded through a parasitic short-circuit wire. The multi-frequency antenna not only can improve the high-frequency bandwidth, but also can improve the low-frequency bandwidth, thus being suitable for the requirements of LTE for the antenna, and having good whole performance for the antenna.

Description

Multifrequency antenna
Technical field
The utility model relates to a kind of antenna, especially relates to a kind of multifrequency antenna.
Background technology
LTE (Long Term Evolution, Long Term Evolution) project is the evolution of 3G, starts from the meeting of 3GPP in 2004.LTE is not the 4G technology that people generally misread, but a transition between 3G and the 4G technology is the global standards of 3.9G, and it improves and strengthened the aerial access technology of 3G, adopts OFDM and the MIMO sole criterion as its wireless network evolution.The peak rate of descending 326Mbit/s and up 86Mbit/s can be provided under the 20MHz spectral bandwidth.LTE has improved the performance of Cell Edge User, improves cell capacity and reduces system delay.3G continue to optimize with 4G evolution general layout under, in the face of the wretched insufficiency of frequency spectrum resource, the professional surge of big flow, on corollary equipments such as antenna the introducing new technology by operator as key project.
Under the evolution situation along with the 3G project, the inventor in the invention process, find existing notebook built-in aerial exist below individual problem.
1, present, notebook built-in W WAN multifrequency antenna is towards low-frequency range, little space; The high-performance direction develops, and product is main with the 3D form of metal clips+support/FPC+ support, but because design cycle is lack of standardization; The Antenna Design randomness is more intense, causes can having some problems in the R&D process.Comprise with notebook computer in space contradiction become increasingly conspicuous, the cabling complex forms, random strong, to such an extent as to the adjustment order is complicated when multiband antenna design, it is big to adjust difficulty.Simultaneously, disparity items difference is big, and the not versatility of Antenna Design causes R&D costs high, and resource consumption is big, how to make Antenna Design that very strong continuity and versatility are arranged, thereby reduces cost, and reduces difficulty, and the reduction construction cycle becomes one of difficult problem.
2, be the narrow frame designer trends of representative because the T of IBM Corporation series has appearred in notebook design, the space that causes leaving for antenna is narrow and small day by day, and notebook is more and more comprehensive to the functional requirement of antenna, and frequency range develops to more hanging down direction.The scope that present LTE antenna has required to cover comprises 698MHZ-960MHZ, 1710MHZ-2700MHZ, and GPS1575MHZ etc., according to the basic principle of antenna, antenna volume requires also change accordingly.How to adapt to the ever-reduced frame height and the ever-increasing beamwidth of antenna, the development volume is littler, and the better 3D antenna of performance becomes the task of top priority.
Summary of the invention
The utility model is to the ubiquitous shortcoming of above-mentioned antenna, proposes a kind of better performances, has the multifrequency antenna of wide bandwidth.
The technical scheme of the utility model is following: a kind of multifrequency antenna, comprise printed circuit board (PCB) and be arranged on first branch's cabling, the second branch's cabling on the printed circuit board (PCB), first, second branch's cabling with the phase contact be the center respectively to the left and right level stretch out; Above printed circuit board (PCB) first branch's cabling, be provided with the first radiation metal shell fragment of walking line parallel with first branch, above second branch's cabling, be provided with second branch and walk the line parallel second radiation metal shell fragment; The said first radiation metal shell fragment and first branch's cabling side join, and the said second radiation metal shell fragment is through parasitic short-circuit line ground connection.
A kind of preferred version, said printed circuit board (PCB) lower limb is provided with metal clips, and described parasitic short-circuit line is through this metal clips ground connection.
A kind of preferred version, the said first radiation metal shell fragment, the second radiation metal shell fragment and metal clips are the metal clips that is welded on the printed circuit board (PCB).
A kind of preferred version, said first branch's cabling, second branch's cabling all connect radio circuit through coaxial cable.
A kind of preferred version, said antenna applications is on notebook computer.
A kind of preferred version, said antenna are arranged at notebook computer screen top, are connected in the ground end of notebook mainboard through copper-foil conducting electricity.
In sum, the utlity model has following significant beneficial effect:
(1) the application's multifrequency antenna has been introduced parasitic short-circuit line, has improved the bandwidth of high frequency antenna;
(2) the application has combined parasitic short-circuit line and metal clips cleverly, makes the bandwidth of antenna low-frequency range also be able to promote;
(3) the application can cover LTE, MIMO&WWAN, satisfies the requirement of LTE to antenna, and functional, and the experimental test result is shown in accompanying drawing 3, and at 705MHz-960MHz, 1710MHz-2700MHz has realized double resonance.
Description of drawings
Accompanying drawing 1 is the structural representation of the said multifrequency antenna of the utility model;
Accompanying drawing 2 is the said multifrequency antenna fundamental diagram of the utility model;
Accompanying drawing 3 is the said multifrequency antenna experimental test of the utility model figure as a result.
Embodiment
In order to let those skilled in the art understand the technical scheme of the utility model better, the utility model is done further to set forth below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of multifrequency antenna comprises printed circuit board (PCB) 1 and is arranged on first branch's cabling 6, the second branch's cabling 7 on the printed circuit board (PCB) 1, first, second branch's cabling with the phase contact be the center respectively to the left and right level stretch out; Above printed circuit board (PCB) first branch's cabling, be provided with the first radiation metal shell fragment 2 of walking line parallel with first branch, above second branch's cabling, be provided with second branch and walk the line parallel second radiation metal shell fragment 3; The said first radiation metal shell fragment 2 and first branch's cabling side join, and the said second radiation metal shell fragment 3 is through parasitic short-circuit line 8 ground connection.Said printed circuit board (PCB) lower limb is provided with metal clips 4, and said parasitic short-circuit line 8 is through this metal clips ground connection.The said first radiation metal shell fragment 2, the second radiation metal shell fragment 3 and metal clips 4 are the metal clips that is welded on the printed circuit board (PCB).Said first branch's cabling 6, second branch's cabling 7 all connect radio circuit through coaxial cable.Said antenna applications is on notebook computer.Said antenna is arranged at notebook computer screen top, is connected in notebook mainboard ground through copper-foil conducting electricity 5.
Like Fig. 2; Multifrequency antenna also comprises notebook computer; Described notebook computer comprises notebook computer screen shell, notebook computer screen, and described printed circuit board (PCB) is arranged at the top of notebook computer screen shell, and described ground connection Copper Foil and notebook computer screen join.Multifrequency antenna also comprises radio circuit, and the other end of described radio circuit and feed-in assembly joins.Described feed-in assembly is 50 ohm coaxial cable of band IPEX head.
Antenna is positioned over the top edge of notebook screen shell, and antenna carries out feed through 50 ohm coaxial cable, and copper-foil conducting electricity is connected on the notebook computer screen.The coaxial wire heart yearn is connected respectively to two arms of different length, and (long branch line carries out feed with short branch line to antenna, and antenna can produce two resonance at low frequency and high frequency respectively.Be welded with the radiation shell fragment on the long branch line to increase the low frequency bandwidth, short branch line is coupled feed to parasitic short-circuit line with electromagnetic energy, combines with metal clips and will produce a resonance in low-frequency range, further increases the low frequency bandwidth.Antenna can form a circular current from feed end to ground short circuit toe-in bundle in addition, produces a resonance at front end.In addition, two apotypes of long branch line can produce a resonance and then improve high frequency bandwidth at front end.
The described multifrequency of the application is antenna frequently; The antenna frequency range covers the LTE/WWAN frequency range: 0MHZ), and GSM850/900 (824-960MHZ), GSM1800/1900/UMTS (1710-210MHZ); GSM850/900 (824-960MHZ), GSM1800/1900/UMTS (1710-2170MHZ).
Described antenna has been introduced parasitic short-circuit line, and its purpose is regulated antenna low frequency coupling as for increasing high frequency bandwidth.Described parasitic short-circuit line is connected with metal clips, and its purpose is to regulate antenna resonance length, produces a resonance at low frequency end.
Need to prove; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these changes and distortion all should belong to the protection range of the appended claim of the utility model.

Claims (6)

1. a multifrequency antenna comprises printed circuit board (PCB) (1) and is arranged on first branch's cabling (6), the second branch's cabling (7) on the printed circuit board (PCB) (1), first, second branch's cabling with the phase contact be the center respectively to the left and right level stretch out; It is characterized in that, above printed circuit board (PCB) first branch's cabling, be provided with the first radiation metal shell fragment (2) of walking line parallel with first branch, above second branch's cabling, be provided with second branch and walk the line parallel second radiation metal shell fragment (3); The said first radiation metal shell fragment (2) joins with first branch's cabling side, and the said second radiation metal shell fragment (3) is through parasitic short-circuit line (8) ground connection.
2. multifrequency antenna according to claim 1 is characterized in that: said printed circuit board (PCB) lower limb is provided with metal clips (4), and parasitic short-circuit line (8) is through this metal clips ground connection.
3. multifrequency antenna according to claim 2 is characterized in that: the said first radiation metal shell fragment (2), the second radiation metal shell fragment (3) and metal clips (4) are the metal clips that is welded on the printed circuit board (PCB).
4. multifrequency antenna according to claim 1 is characterized in that: said first branch's cabling (6), second branch's cabling (7) all connect radio circuit through coaxial cable.
5. according to any described multifrequency antenna among the claim 1-4, it is characterized in that: said antenna applications is on notebook computer.
6. multifrequency antenna according to claim 5 is characterized in that: said antenna is arranged at notebook computer screen top, is connected in the ground end of notebook mainboard through copper-foil conducting electricity (5).
CN 201220051199 2012-02-17 2012-02-17 Multi-frequency antenna Expired - Fee Related CN202564541U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220051199 CN202564541U (en) 2012-02-17 2012-02-17 Multi-frequency antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220051199 CN202564541U (en) 2012-02-17 2012-02-17 Multi-frequency antenna

Publications (1)

Publication Number Publication Date
CN202564541U true CN202564541U (en) 2012-11-28

Family

ID=47214163

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220051199 Expired - Fee Related CN202564541U (en) 2012-02-17 2012-02-17 Multi-frequency antenna

Country Status (1)

Country Link
CN (1) CN202564541U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104022338A (en) * 2013-02-28 2014-09-03 鸿富锦精密工业(武汉)有限公司 Electronic device
CN105633549A (en) * 2014-10-31 2016-06-01 深圳富泰宏精密工业有限公司 Antenna structure and wireless communication equipment using same
CN111384588A (en) * 2018-12-27 2020-07-07 宏碁股份有限公司 Multi-frequency antenna
US10916847B2 (en) 2018-11-23 2021-02-09 Acer Incorporated Multi-band antenna

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104022338A (en) * 2013-02-28 2014-09-03 鸿富锦精密工业(武汉)有限公司 Electronic device
CN105633549A (en) * 2014-10-31 2016-06-01 深圳富泰宏精密工业有限公司 Antenna structure and wireless communication equipment using same
CN105633549B (en) * 2014-10-31 2020-06-19 深圳富泰宏精密工业有限公司 Antenna structure and wireless communication equipment applying same
US10916847B2 (en) 2018-11-23 2021-02-09 Acer Incorporated Multi-band antenna
CN111384588A (en) * 2018-12-27 2020-07-07 宏碁股份有限公司 Multi-frequency antenna
CN111384588B (en) * 2018-12-27 2022-07-05 宏碁股份有限公司 Multi-frequency antenna

Similar Documents

Publication Publication Date Title
CN204189957U (en) A kind of tunable LTE metal edge frame antenna being applied to smart mobile phone
CN203386889U (en) Handheld equipment antenna device with metal frame
US10601116B2 (en) Wireless terminal
KR102455333B1 (en) Antenna systems and terminal equipment
CN204391272U (en) A kind of novel metal edge frame LTE antenna
CN204375915U (en) Multiband antenna
CN105655690B (en) A kind of frequency range switched antenna
CN202564541U (en) Multi-frequency antenna
WO2021244282A1 (en) Electronic device
US10116040B2 (en) Multi-frequency antenna and terminal
CN105811076A (en) High-isolation mobile phone antenna structure based on metal back cover
JP6456475B2 (en) Antenna radiation sheet, antenna, and portable terminal
JP6272505B2 (en) Antenna device and terminal
CN203521611U (en) Coupled feeding multi-frequency antenna
CN203617432U (en) LTE antenna expanding low frequency and high frequency bandwidth
CN206524401U (en) Antenna assembly and the mobile terminal with the antenna assembly
CN103138043A (en) Antenna module and mobile terminal
CN104733831A (en) WLAN (wireless local area network) antenna and manufacturing method thereof applied to mobile terminal
CN102969567B (en) Communication device and method for increasing antenna operation bandwidth
CN202695729U (en) Antenna
CN205141145U (en) Many antenna structure and metal mobile terminal
CN204011713U (en) A kind of multiband LTE MIMO antenna structure
CN103337687A (en) An antenna apparatus of a mobile terminal
CN203596410U (en) Miniature LTE/WWAN antenna
CN202772256U (en) Mini-size multi-frequency antenna

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121128

Termination date: 20210217