CN102856633A - Antenna device of mobile terminal surrounding feed pin - Google Patents
Antenna device of mobile terminal surrounding feed pin Download PDFInfo
- Publication number
- CN102856633A CN102856633A CN2012103165685A CN201210316568A CN102856633A CN 102856633 A CN102856633 A CN 102856633A CN 2012103165685 A CN2012103165685 A CN 2012103165685A CN 201210316568 A CN201210316568 A CN 201210316568A CN 102856633 A CN102856633 A CN 102856633A
- Authority
- CN
- China
- Prior art keywords
- antenna
- mobile terminal
- feed pin
- frequency
- around
- 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.)
- Pending
Links
Images
Landscapes
- Waveguide Aerials (AREA)
Abstract
The invention provides an antenna device of a mobile terminal surrounding a feed pin. The antenna device comprises a main board of the mobile terminal, an antenna feed pin and an antenna radiation film, and the antenna radiation film is provided with at least one long node surrounding the feed pin or a contact area of the feed pin. The antenna device provided by the invention has a higher compatibility in high and low frequency bands than a normal antenna, in particular in a situation that the normal antenna has a too high secondary resonance frequency due to a low-frequency node, without additionally increasing the antenna height, area and clearance or providing an additional large inductor connected in series. The antenna device of the mobile terminal surrounding the feed pin can be widely applied to a GSM (global system for mobile communications), a CDMA (code division multiple access) multi-frequency mobile terminal antenna and a WIFI (wireless fidelity), BT (Bluetooth) and GPS (global positioning system) three-in-one antenna.
Description
Technical field
The present invention relates to a kind of mobile terminal antenna device around feedback pin or feedback pin contact area.
Background technology
Now, along with more and more miniaturization of portable terminal, multifrequency has proposed stern challenge to miniaturization and the multiplex (MUX) of antenna as frequency range.Such as GPS and BT, WIFI three-in-one antenna, need be operated under two frequency ranges of 1.57GHz and 2.4GHz.If adopt common dual-band antenna technology, adopt two detail cablings to produce double-frequency resonance such as " G " type antenna, even increase the stiffness of coupling of low frequency detail and high frequency detail, also be difficult to so that the secondary resonance frequency of 1.57GHz detail drops near the 2.4GHz, this will cause the 1.57GHz detail to disturb the resonance of 2.4GHz detail, causes the bandwidth of 2.4GHz less.
For solving this technical barrier, present technology is at the large inductance of Mobile terminal main board string basically, the secondary resonance frequency of 1.57GHz detail antenna (1.57GHz * 2) is dropped to about 2.4GHz, and the headroom district that perhaps increases antenna remedies the problem of G type beamwidth of antenna deficiency.
This situation also appears on the GSM multifrequency antenna; particularly in the antenna environment of some portable terminal; usually can run into such situation: the secondary resonance frequency of low frequency detail is higher than the high frequency frequency far away, causes how adjusting the high frequency bandwidth that the shape of high frequency detail all can't obtain.Common solution remains the crosstalk sense or strengthens the coupling of low-and high-frequency detail.
For example, the patent documentation of notification number CN201387932 discloses a kind of Multi-frequency antenna for wireless communication terminal, comprise the metal-made lamellar body, be provided with aerial signal end and earth terminal on the lamellar body, signal end and wireless communication terminal radio circuit electrically connect, and lamellar body integral body is square, and upper end and the earth terminal of signal end connect as one structure, signal end right side wall and bottom separate by gap and earth terminal, and signal end and earth terminal form the annular of open circuit.
The patent documentation of notification number CN102422484A discloses a kind of antenna combination that is intended to for a kind of wireless device at small-sized movable station, wherein has two antennas that are provided with their feed.Antenna mainly is used to lower band and another is used to high frequency band.
The patent documentation of notification number CN201117812 discloses a kind of Multi-frequency reverse F-shaped antenna that is fit to be used in the mobile communication equipment of intelligent mobile phone class, comprises that the width of cloth penetrates assembly, grounding assembly and feed-in assembly.
Above-mentioned prior art has some shortcomings, increase the antenna headroom and obviously do not meet portable terminal to the requirement of antenna, strengthen the coupling of G type antenna low-and high-frequency, then may be in order to strengthen the coupling of low-and high-frequency detail, both seams may littlely can not be realized volume production within the mismachining tolerance scope, the joint of drawing money on credit of G shape antenna is in order to be coupled out secondary resonance with short detail in addition, the end that saves of drawing money on credit generally need to turn back, and can not optionally be placed on the position that is conducive to low frequency radiation most.The loss of inductance can be introduced and go here and there the scheme of large inductance, and the bandwidth of low frequency can be reduced.More than various antenna purposes be and can under multi-frequency, obtain broadband effects, and then the utilance of lifting bandwidth, but the said apparatus structure is all comparatively complicated, does not also take the antenna structure that forms around feedback pin contact area such as the present invention and the means of adjusting antenna length.
Patent of the present invention does not need to go here and there large inductance, does not need too thin slot coupling, can take into account the bandwidth of low-and high-frequency, and not need additionally to increase the headroom district of antenna.
Summary of the invention
The present invention provides a kind of mobile terminal antenna that can take into account better high and low frequency in view of above-mentioned condition, comprises Mobile terminal main board, antenna feed pin and around the aerial radiation sheet of feedback pin or feedback pin contact area.
The present invention is a kind of mobile terminal antenna device around the feedback pin, it is characterized in that, comprises Mobile terminal main board, antenna feed pin and aerial radiation sheet, and described aerial radiation sheet has at least one around the joint of drawing money on credit of feedback pin or feedback pin contact area.
Be preferably, described aerial radiation sheet generally has one or more short details, and short detail also can omit.Draw money on credit and save low-frequency resonant frequency in determining antenna, draw money on credit joint and short detail are used for the common high-frequency resonant frequency that determines antenna.
Be preferably, the antenna feed pin only is single feed pin, perhaps is a feed pin and a feedback lower margin, perhaps is a feed pin and two feedback lower margins.
Be preferably, the described joint of drawing money on credit is more than the small semicircle around feedback pin or feedback pin contact area.
Be preferably, by reaching around length around mode that adjusting is drawn money on credit and saved, can regulate the secondary resonance frequency of described antenna assembly.
Be preferably, with described antenna assembly because without the end coupling, can be placed in the end of the joint of drawing money on credit on the position that more is conducive to radiation.
Be set as the short detail of antenna assembly of the present invention shorter than short detail of the prior art.Draw money on credit joint around principle be by around feedback pin or its contact area, make its secondary resonance frequency of drawing money on credit joint be reduced to suitable frequency, so as short detail better resonance at high band.
Key technology main points of the present invention are: by around feedback pin or its contact area, make its secondary resonance frequency of drawing money on credit joint be reduced to suitable frequency so that short detail better resonance at high band.
The reaching around mode of joint of drawing money on credit can be regulated around length, can regulate thus the secondary resonance frequency of antenna assembly.
The end of the joint of drawing money on credit can be placed in the position of more favourable radiation, because the antenna end that saves that do not need to draw money on credit is coupled to regulate its secondary resonance frequency.
Excellent beneficial effect of the present invention is: antenna assembly of the present invention has been taken into account the High-frequency and low-frequency section better than common antenna, particularly at common antenna because in the too high situation of the secondary resonance frequency of low frequency detail, still can take into account well the High-frequency and low-frequency section, do not need to increase extraly antenna height, area, headroom, do not need the large inductance of extra string yet.
The present invention can be widely used in GSM, CDMA multifrequency mobile terminal antenna and WIFI, BT and the GPS three-in-one antenna.
Description of drawings
(a) of Fig. 1 for the joint of drawing money on credit of the aerial radiation sheet of the described antenna assembly of an embodiment of the present invention around the schematic diagram of the state of feedback pin contact area, (b) be the schematic diagram of the common G shape antenna structure of prior art.
Fig. 2 is the curve comparison figure of the relation of the common antenna shown in the figure and the standing-wave ratio of encircling feedback pin beamwidth of antenna feature and frequency.
Antenna schematic diagram when (a) of Fig. 3 draws money on credit joint for only keeping around feedback pin antenna, (b) the antenna schematic diagram when only keeping short detail around feedback pin antenna.
(a) of Fig. 4, (b) are respectively by the HFSS software analysis and only keep the impedance operator schematic diagram of the joint of drawing money on credit, short detail around feedback pin antenna, (c) are the impedance of the length detail shown in (a), (b) and are unified into impedance curve comparison diagram with actual antennas.
Fig. 5 is the structural representation of the described antenna assembly of another preferred embodiment of the present invention.
Fig. 6 is the curve chart of the relation of the standing-wave ratio of the excellent bandwidth feature of antenna shown in Figure 5 and frequency.
Fig. 7 is the structural representation of the described antenna assembly of the another kind of preferred embodiment of the present invention.
Fig. 8 is the curve chart of the relation of the standing-wave ratio of the excellent bandwidth feature of antenna shown in Figure 7 and frequency.
Among the figure: the 1-Mobile terminal main board, 2-presents lower margin, 3-feed pin, the 4-joint of drawing money on credit, the short detail of 5-.
Embodiment
Below, by reference to the accompanying drawings 1 and accompanying drawing 2, the specific embodiment of the present invention is described further.
As shown in Figure 1, a preferred embodiment of the present invention is a kind of mobile terminal antenna device around the feedback pin, comprise Mobile terminal main board 1, feedback lower margin 2, feed pin 3 and around the aerial radiation sheet of feedback pin or feedback pin contact area, described aerial radiation sheet comprises draw money on credit joint 4 and short detail 5.As shown shown in the 1a, the large half-turn in zone that the joint 4 of drawing money on credit of antenna contacts with feed pin 3 around feedback lower margin 2 along the direction of arrow, a resonance frequency of joint 4 is when 1.57GHz so that draw money on credit, the secondary resonance frequency also is higher than the 2.4GHz frequency range, then further reduce the high-frequency resonant frequency of antenna with short detail 5, just in time drop on the 2.4GHz frequency range.The Mobile terminal main board 1 of portable terminal is grown and be wide is 110 * 60mm, and the antenna height is 1.5mm, and long and wide is 15 * 10mm, and antenna headroom offset is from 3mm, and working frequency range is GPS and WIFI.
In addition, by around the feedback pin can be feed pin 3 or the feedback lower margin 2, or both by around.
Around direction can be the plane clockwise or counterclockwise, also can be three-dimensional around.
Three-dimensional around can being various ways, as first inward volume more staggered wire jumper to outer, from side around to the back side (front) again to the side, and then to front (back side) etc.
The antenna feed pin can only be single feed pin 3, or a feed pin 3 and a feedback lower margin 2, or a feed pin 3 and two feedback lower margins 2.
Shown in Fig. 1 b, common G type antenna form as prior art, a resonance frequency of its joint 4 of drawing money on credit is when 1.57GHz, the secondary resonance frequency is far above 2.4GHz, at this moment short detail 5 just needs very large regulating power, often cause the length of its short detail 5 obviously much long than the short detail of ring feedback pin antenna of the present invention, even regulate and do not come.Its high frequency bandwidth also just because of need to lacking detail, common G type antenna has very large regulating power, so can worsen.
Under same antenna environment, the contrast of common antenna and the beamwidth of antenna around the feedback pin of the present invention as shown in Figure 1, significantly, described antenna around the feedback pin has been taken into account low frequency and high frequency better.
Associative simulation by HFSS and ADS three-dimensional structure electromagnetic field simulation software, analyze respectively described drawing money on credit of antenna around the feedback pin with reference to model shown in Figure 3 by HFSS software and save 4, the impedance operator (as shown in Figure 4) of short detail 5, use ADS software that described drawing money on credit saved 4 and the impedance of described short detail 5 and being unified into, the impedance operator contrast (as shown in Figure 4) of the impedance operator that obtains synthesizing and antenna integral body, basically it is less to think that draw money on credit joint and the short detail of this antenna influences each other, and the basic equivalence of overall impedance is the parallel impedance of draw money on credit joint 4 and described short detail 5.If common G type antenna, the coupling of long and short detail is very strong, is difficult to approach overall impedance with the impedance of long and short detail is synthetic respectively, and this shows that also antenna assembly of the present invention can take into account the height frequency range better, and common antenna is then not all right.
Fig. 5 shows another kind of preferred embodiment, the Mobile terminal main board 1 of portable terminal is grown and be wide is 110 * 60mm, local headroom 11 * 29mm is arranged, the high 3mm of antenna, the length of antenna and wide be 17 * 23mm, working band is respectively GPS in the 824-960MHz scope and the WIFI in the 1710-2170MHz scope.
The joint 4 of drawing money on credit of the embodiment of the invention is three-dimensional around mode around the modes of feedback pin and contact area 3 thereof, can design more neatly outer surface in mobile terminal shell than a upper embodiment.
Diagram 6 has shown the good bandwidth of this antenna.
Fig. 7 shows another kind of preferred embodiment, the length of antenna and wide be 18 * 2mm, working band is respectively GPS in the 1565-1585MHz scope and the WIFI in the 2.4-2.48GHz scope.
The antenna that Fig. 8 shows described preferred embodiment has good bandwidth.
The present invention is not limited to above-mentioned execution mode, and in the situation that does not deviate from flesh and blood of the present invention, any distortion that those skilled in the art can expect, improvement, replacement all fall into scope of the present invention.
Claims (5)
1. the mobile terminal antenna device around the feedback pin is characterized in that comprise Mobile terminal main board, antenna feed pin and aerial radiation sheet, described aerial radiation sheet has at least one around the joint of drawing money on credit of described feedback pin.
According to claim 1 around the feedback pin the mobile terminal antenna device, described draw money on credit the joint around antenna feed pin contact area.
3. the mobile terminal antenna device around the feedback pin according to claim 1 and 2 is characterized in that described aerial radiation sheet has one or more short details.
4. the mobile terminal antenna device around the feedback pin according to claim 1 and 2 is characterized in that, the antenna feed pin is any form in single feed pin, a feed pin and a feedback lower margin, a feed pin and the two feedback lower margins.
5. the mobile terminal antenna device around the feedback pin according to claim 1 and 2 is characterized in that, the described joint of drawing money on credit is more than the small semicircle around feedback pin or its contact area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103165685A CN102856633A (en) | 2012-08-30 | 2012-08-30 | Antenna device of mobile terminal surrounding feed pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103165685A CN102856633A (en) | 2012-08-30 | 2012-08-30 | Antenna device of mobile terminal surrounding feed pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102856633A true CN102856633A (en) | 2013-01-02 |
Family
ID=47402981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103165685A Pending CN102856633A (en) | 2012-08-30 | 2012-08-30 | Antenna device of mobile terminal surrounding feed pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102856633A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655692A (en) * | 2015-12-25 | 2016-06-08 | 宇龙计算机通信科技(深圳)有限公司 | Mobile communication terminal and antenna device thereof |
| WO2016106937A1 (en) * | 2014-12-30 | 2016-07-07 | 宇龙计算机通信科技(深圳)有限公司 | Signal transmission method and device, and terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5926139A (en) * | 1997-07-02 | 1999-07-20 | Lucent Technologies Inc. | Planar dual frequency band antenna |
| CN1315064A (en) * | 1998-07-09 | 2001-09-26 | 艾利森电话股份有限公司 | Printed twin spiral dual band antenna |
| CN1519982A (en) * | 2003-01-15 | 2004-08-11 | 菲尔特朗尼克Lk有限公司 | Internal multiband antenna |
-
2012
- 2012-08-30 CN CN2012103165685A patent/CN102856633A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5926139A (en) * | 1997-07-02 | 1999-07-20 | Lucent Technologies Inc. | Planar dual frequency band antenna |
| CN1315064A (en) * | 1998-07-09 | 2001-09-26 | 艾利森电话股份有限公司 | Printed twin spiral dual band antenna |
| CN1519982A (en) * | 2003-01-15 | 2004-08-11 | 菲尔特朗尼克Lk有限公司 | Internal multiband antenna |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016106937A1 (en) * | 2014-12-30 | 2016-07-07 | 宇龙计算机通信科技(深圳)有限公司 | Signal transmission method and device, and terminal |
| US10484085B2 (en) | 2014-12-30 | 2019-11-19 | Yulong Computer Telecommuncation Scientific (Shenzhen) Co., Ltd. | Signal transmission method and device, and terminal |
| CN105655692A (en) * | 2015-12-25 | 2016-06-08 | 宇龙计算机通信科技(深圳)有限公司 | Mobile communication terminal and antenna device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105514624B (en) | A kind of mobile terminal antenna system and mobile terminal | |
| CN104836031B (en) | A kind of antenna and mobile terminal | |
| CN102299406B (en) | Multi-frequency antenna used for mobile terminal | |
| CN103199339B (en) | Reactance loaded dual-band antenna | |
| CN105406176B (en) | A kind of mobile terminal antenna system and mobile terminal | |
| US9306266B2 (en) | Multi-band antenna for wireless communication | |
| US9373889B2 (en) | Ultra-wideband antenna and terminal | |
| CN204375915U (en) | Multiband antenna | |
| CN105490004A (en) | Mobile terminal antenna system and mobile terminal | |
| CN101853981A (en) | Multifrequency antenna and wireless communication device applying same | |
| JP2016526861A (en) | MIMO antenna, terminal and method for improving isolation | |
| CN105449363A (en) | Exciting dual frequency bands from an antenna component with a dual branch coupling feed | |
| CN200986965Y (en) | Built-in multi-frequency antenna of mobile communication device and mobile communication device | |
| CN203134976U (en) | E-shape slot miniature paster microstrip antenna | |
| CN102820523A (en) | Multi-band antenna | |
| CN105322278A (en) | Antenna with continuous metal frame and electronic equipment employing antenna | |
| CN104716441B (en) | A kind of multifrequency antenna and mobile terminal | |
| CN104143694B (en) | Antenna structure and wireless communication device using same | |
| CN105846069A (en) | Multi-band MIMO cell phone antenna with simple decoupling structure | |
| CN106848542B (en) | A kind of antenna and mobile terminal | |
| CN103928753A (en) | Mobile phone and antenna thereof | |
| CN102856633A (en) | Antenna device of mobile terminal surrounding feed pin | |
| CN202817173U (en) | Multiple resonance broadband coil antenna system | |
| CN203774453U (en) | Mobile phone and antenna thereof | |
| CN107681257B (en) | Miniaturized three-resonance antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130102 |