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CN201315073Y - Data card - Google Patents

Data card Download PDF

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Publication number
CN201315073Y
CN201315073Y CNU2008201811579U CN200820181157U CN201315073Y CN 201315073 Y CN201315073 Y CN 201315073Y CN U2008201811579 U CNU2008201811579 U CN U2008201811579U CN 200820181157 U CN200820181157 U CN 200820181157U CN 201315073 Y CN201315073 Y CN 201315073Y
Authority
CN
China
Prior art keywords
antenna
data
interface
data card
ground wire
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 - Lifetime
Application number
CNU2008201811579U
Other languages
Chinese (zh)
Inventor
兰尧
孙树辉
雷平
于亚芳
戚捷
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.)
Huawei Device Co Ltd
Original Assignee
Shenzhen Huawei Communication Technologies 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 Shenzhen Huawei Communication Technologies Co Ltd filed Critical Shenzhen Huawei Communication Technologies Co Ltd
Priority to CNU2008201811579U priority Critical patent/CN201315073Y/en
Application granted granted Critical
Publication of CN201315073Y publication Critical patent/CN201315073Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a data card, which comprises a mainboard, a data interface, and an antenna; the mainboard and the data interface are respectively arranged at the two sides of the data card; the data card is connected with a terminal by the data interface; the antenna is arranged at one side of the mainboard near the data interface; the data interface is connected with the antenna through a groundwire on the data card. The antenna of the embodiment of the utility model is near the data interface; partial energy of the antenna can be dispersed on the terminal through the groundwire to disperse the radiation range, thereby reducing the SAR value.

Description

A kind of data card
Technical field
The utility model relates to communication technical field, relates in particular to a kind of data card.
Background technology
SAR (Specific Absorption Rate, specific absorption rate) is the unit of quantity of measuring the radio-frequency (RF) energy that human body absorbed when using communication facilities.At present, also more and more higher to the SAR value requirement of data card, become the major criterion of weighing the data card wireless performance.Existing data card adopts monopole, IFA (Inverted F Antenna, the inverted F-type antenna) and PIFA (Planar Inverted FAntenna, planar inverted F type antenna) built-in antenna of form such as, this built-in antenna generally is positioned at the end of mainboard.
In realizing process of the present utility model, the inventor finds that prior art has following shortcoming:
In the prior art, antenna is positioned at the end of mainboard away from USB (Universal Serial Bus, USB (universal serial bus)) data-interface, and antenna is main radiator, and emittance is concentrated, and causes the SAR value of data card bigger.
The utility model content
The utility model discloses a kind of data card, so that a kind of data card that can effectively reduce the antenna SAR value to be provided.
The utility model provides a kind of data card, comprising:
Mainboard, data-interface and antenna, described mainboard and described data-interface lay respectively at the both sides of data card, and described data card is connected with terminal by described data-interface; Described antenna is positioned at a side of close described data-interface on the described mainboard, and described data-interface is connected with described antenna by the ground wire on the described data card.
Compared with prior art, the antenna of the utility model embodiment is near data-interface, and the portion of energy of antenna is distributed on the terminal by ground wire, the stray radiation scope, thereby, reduced the SAR value of data card.
Description of drawings
Fig. 1 is a kind of data card structural representation among the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of data card structural representation among the utility model embodiment comprises: mainboard 11, data-interface 12, antenna 13.
Mainboard 11 and data-interface 12 lay respectively at the both sides of data card, mainboard 11 is used for when data-interface 12 is connected with terminal 20, the radiofrequency signal that antenna 13 receives is handled, to output to terminal 20 to the information of radio frequency signal Processing gained by data-interface 12, or the information of deal with data interface 12 inputs, by the information after the antenna 13 emission processing.Mainboard 11 can be PCB (Printed CircuitBoard, printed circuit board (PCB)).
Data-interface 12 is positioned on the data card with respect to a side of mainboard 11, and data card is connected with terminal 20 by data-interface 12.This data-interface 12 can be USB interface, also can be the interface of the other types of mini USB (mini Universal Serial Bus, micro universal universal serial bus) interface etc.
Antenna 13 is used to receive the radiofrequency signal that network sends, or sends radiofrequency signal to network, is positioned at a side of close data-interface 12 on the mainboard 11, and data-interface 12 is connected with antenna 13 by the ground wire on the data card 14.Antenna 13 is positioned at the side near data-interface 12, and when testing SA R value, the position of antenna 13 is provided with can increase the distance of antenna 13 to SAR testing tool human trunk model, reduces the influence of 13 pairs of human trunk models of antenna, reduces the SAR value.
Ground wire 14 comprises first ground wire 141 and second ground wire 142, and data-interface 12 is connected with antenna 13 by first ground wire 141, and mainboard 11 is connected with antenna 13 by second ground wire 142.
Antenna 13 comprises feeder unit 131 and at least one antenna branch unit 132, antenna branch unit 132 is connected with feeder unit 131, antenna branch unit 132 is connected with data-interface 12 by first ground wire 141 on the data card, antenna branch unit 132 specifically is connected with antenna branch unit 132 by second ground wire 142, by first ground wire 141 and data-interface 12, antenna 13 has sent the portion of energy of radiofrequency signal to terminal 20 by first ground wire 141 via data-interface 12; By second ground wire 142, antenna 13 has sent the portion of energy of radiofrequency signal to mainboard 13, has disperseed the energy of antenna 13 radiofrequency signals by terminal 20 and mainboard 13, has reduced the influence of antenna 13 radiation to human body, thereby reduces the SAR value of data card.
Antenna 13 also comprises at least one matching module 133, and matching module 133 is connected with feeder unit 131 with antenna branch unit 132 respectively, and matching module 133 is used to mate the bandwidth of antenna 13.
Wherein, the length difference of different antennae tributary unit 132, utilize the antenna branch unit 132 of different length, antenna matching network by matching module 133, feeder unit 131, antenna branch unit 132 compositions, can form the antenna of one-segment or multiband, the band limits of antenna can be 824MHz～960MHz﹠amp; 1570MHz～1580MHz﹠amp; 1710MHz～2170MHz.
In concrete the application, because actual debugging situation is different with mode, matching module 133 can lay respectively on antenna branch unit 132 and the feeder unit 131 simultaneously, also can only be positioned on feeder unit 131 or the antenna branch unit 132, and concrete distribution mode is decided according to concrete condition.
In the present embodiment, be example with two antenna branch unit 132, antenna branch unit 132 comprises the first antenna branch unit 1321 and the second antenna branch unit 1322.Feeder unit 131, the first antenna branch unit 1321, the second antenna branch unit 1322 are the T type and connect.Be equipped with matching module 133 on the first antenna branch unit 132, the second antenna branch unit 1322 and the feeder unit 131.The first antenna branch unit 132 is connected with data-interface 12 by first ground wire 141, is connected with mainboard 11 by second ground wire 42.
Data card antenna with routine is compared with present embodiment, corresponding CDMA (the Code Division Multiple Access of routine data card antenna, CDMA) PCS (Personal CommunicationsService, person-to-person communication service) the SAR value is 3.97mw/1g during 25 channels (identical distance), and adopt the measured square one of the utility model SAR value down is 2.3mw/1g, with respect to the data card antenna SAR value of routine reduction is by a relatively large margin arranged.
Compared with prior art, the antenna of the utility model embodiment is near the data-interface setting, and the portion of energy of antenna 13 is distributed on the terminal by ground wire, the stray radiation scope, thus reduce the SAR value.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (7)

1, a kind of data card is characterized in that, comprising: mainboard, data-interface and antenna, and described mainboard and described data-interface lay respectively at the both sides of data card, and described data card is connected with terminal by described data-interface; Described antenna is positioned at a side of close described data-interface on the described mainboard, and described data-interface is connected with described antenna by the ground wire on the described data card.
2, data card according to claim 1, it is characterized in that, described ground wire comprises first ground wire, described antenna comprises feeder unit and at least one antenna branch unit, described antenna branch unit is connected with described feeder unit, and described antenna branch unit is connected with described data-interface by described first ground wire.
3, as data card as described in the claim 2, it is characterized in that, described antenna also comprises at least one matching module, and described matching module is connected with described antenna branch unit and/or described feeder unit respectively, and described matching module is used to mate the bandwidth of described antenna.
4, as data card as described in claim 2 or 3, it is characterized in that described antenna branch unit is connected with described feeder unit T type.
5, as data card as described in the claim 4, it is characterized in that described antenna branch element length difference.
6, as data card as described in the claim 2, it is characterized in that described ground wire also comprises second ground wire, described first ground wire is connected with described second ground wire, and described antenna branch unit is connected with described mainboard by described second ground wire.
7, data card according to claim 1 is characterized in that described data-interface is the general-purpose serial bus USB interface.
CNU2008201811579U 2008-12-12 2008-12-12 Data card Expired - Lifetime CN201315073Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201811579U CN201315073Y (en) 2008-12-12 2008-12-12 Data card

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201811579U CN201315073Y (en) 2008-12-12 2008-12-12 Data card

Publications (1)

Publication Number Publication Date
CN201315073Y true CN201315073Y (en) 2009-09-23

Family

ID=41126870

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201811579U Expired - Lifetime CN201315073Y (en) 2008-12-12 2008-12-12 Data card

Country Status (1)

Country Link
CN (1) CN201315073Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011050645A1 (en) * 2009-10-30 2011-05-05 华为终端有限公司 Method for implementing wireless equipment antenna and wireless equipment
WO2012142812A1 (en) * 2011-04-21 2012-10-26 中兴通讯股份有限公司 Data card antenna and data card
CN102916261A (en) * 2011-08-02 2013-02-06 广达电脑股份有限公司 Antenna combination capable of reducing specific absorption rate of electromagnetic wave
WO2013189351A3 (en) * 2013-06-05 2014-05-01 中兴通讯股份有限公司 Antenna

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011050645A1 (en) * 2009-10-30 2011-05-05 华为终端有限公司 Method for implementing wireless equipment antenna and wireless equipment
CN101697378B (en) * 2009-10-30 2012-11-21 华为终端有限公司 Wireless equipment antenna treating method and wireless equipment
US9093743B2 (en) 2009-10-30 2015-07-28 Huawei Device Co., Ltd. Method for implementing wireless equipment antenna and wireless equipment
WO2012142812A1 (en) * 2011-04-21 2012-10-26 中兴通讯股份有限公司 Data card antenna and data card
CN102916261A (en) * 2011-08-02 2013-02-06 广达电脑股份有限公司 Antenna combination capable of reducing specific absorption rate of electromagnetic wave
CN102916261B (en) * 2011-08-02 2015-02-04 广达电脑股份有限公司 Antenna combination capable of reducing specific absorption rate of electromagnetic wave
WO2013189351A3 (en) * 2013-06-05 2014-05-01 中兴通讯股份有限公司 Antenna

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: HUAWEI DEVICE CO., LTD.

Free format text: FORMER NAME: SHENZHEN HUAWEI TECHNOLOGY CO.

CP01 Change in the name or title of a patent holder

Address after: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No.

Patentee after: Huawei Device Co., Ltd.

Address before: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No.

Patentee before: Shenzhen Huawei Communication Technology Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20090923