CN203398260U - Built-in antenna for communication equipment - Google Patents
Built-in antenna for communication equipment Download PDFInfo
- Publication number
- CN203398260U CN203398260U CN201320186071.6U CN201320186071U CN203398260U CN 203398260 U CN203398260 U CN 203398260U CN 201320186071 U CN201320186071 U CN 201320186071U CN 203398260 U CN203398260 U CN 203398260U
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- antenna
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- communication equipment
- radio frequency
- connecting line
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Abstract
The utility model discloses a built-in antenna for communication equipment. The built-in antenna is characterized by comprising a circuit board, an antenna body, a radio frequency connecting line, and a grounding line, wherein the antenna body is arranged on the circuit body; one end of the radio frequency connecting line is connected with the antenna body, while the other end of the radio frequency connecting line is connected with a main board; and one end of the grounding line is connected with the antenna body, while the other end of the grounding line is connected with the main board. According to the built-in antenna for the communication equipment of the utility model, by virtue of additionally providing the grounding line which has one end connected with the antenna body and the other end connected with the external main board, the electromagnetic interference can be reduced effectively and the bandwidth can be broadened.
Description
Technical field
The utility model relates to a kind of communication equipment built-in aerial.
Background technology
Along with the development of High-Speed Communication Technique, all kinds of dual-use equipment is integrated to be accelerated increasingly with process miniaturization, makes communication equipment also improve constantly with the requirement of built-in aerial performance.Generally, some data terminal equipments all need to use the built-in aerial of multiband.The bandwidth of built-in aerial comprises HFS and low frequency part.As shown in Figure 1, be existing a kind of communication equipment built-in aerial, comprise circuit board 1 ', antenna 2 ' and radio frequency connecting line 3 '.Antenna 2 ' is arranged on circuit board 1 '.Radio frequency connecting line 3 ' one end connects antenna 2 ', and the other end is connected on outside main electroplax.This built-in aerial, due to the existence of electromagnetic interference etc., easily meets the requirement of HFS, for low frequency part, cannot meet the demands.As shown in Figure 2, for the built-in aerial in Fig. 1 is applied in the stationary wave characteristic on POS machine, when frequency is 824MHz, standing-wave ratio is up to 4.41, and working band is narrow, probably damages the transmitting station on external mainboard.
Utility model content
The purpose of this utility model is in order to overcome deficiency of the prior art, and a kind of communication equipment built-in aerial that can widen bandwidth is provided.
For realizing above object, the utility model is achieved through the following technical solutions:
Communication equipment built-in aerial, it is characterized in that, comprise circuit board, antenna, radio frequency connecting line and earth connection, described antenna is arranged on described circuit board, described radio frequency connecting line one end is connected with described antenna, the other end is connected with described mainboard, and described earth connection one end is connected with described antenna, the other end is connected with described mainboard.
Preferably, described earth connection and radio frequency connecting line homonymy arrange.
Preferably, the number of described earth connection is more than two, and arranges with described radio frequency connecting line homonymy.
The utility model communication equipment is with built-in aerial by setting up earth connection, and earth connection one end connects antenna.The other end connects outside mainboard, can effectively reduce electromagnetic interference, widens bandwidth.
Accompanying drawing explanation
Fig. 1 is the structural representation of built-in aerial for existing a kind of communication equipment.
Fig. 2 is the standing-wave ratio performance diagram under different frequency of built-in aerial for the communication equipment shown in Fig. 1.
Fig. 3 is the structural representation of built-in aerial embodiment 1 for the utility model communication equipment.
Fig. 4 is the standing-wave ratio performance diagram under different frequency of built-in aerial for the communication equipment shown in Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: as shown in Figure 2: communication equipment built-in aerial, comprises circuit board 1, antenna 2, radio frequency connecting line 3 and earth connection 4.Antenna 2 is arranged on circuit board on 1.Radio frequency connecting line 3 one end are connected with antenna 2, the other end is connected with outside mainboard (not shown).Earth connection 4 one end are connected with antenna 2, the other end is connected with mainboard.Earth connection 4 and the 3 homonymy settings of radio frequency connecting line.Specifically arranging of earth connection 4 can be determined by the following method: first on antenna 2, determine a preliminary position, then finely tune antenna 2 until the frequency range position that arrival needs is finally determined again; The position of earth connection 4 can be on the optional position of antenna 2.
As shown in Figure 4, in figure, the first curve (green line) is the stationary wave characteristic of conventional built-in antenna, and the second curve (yellow line) is the stationary wave characteristic of built-in aerial for the utility model communication equipment.The standing-wave ratio of the second curve when frequency is 824MHz-960MHz is in 2 left and right, and the obvious money of bandwidth of operation is in the bandwidth of operation of the first curve.
The utility model communication equipment can be applied in the various occasions such as POS machine, mobile phone with built-in aerial.
Embodiment 2:
The present embodiment is as different from Example 1: the number of earth connection 4 is two or three, and with the 3 homonymy settings of radio frequency connecting line, each earth connection 4 is arranged side by side.
The utility model communication equipment is with built-in aerial by setting up earth connection 4, and earth connection one end connects antenna 2.The other end connects outside mainboard, can effectively reduce electromagnetic interference, widens bandwidth.
Embodiment in the utility model, only for the utility model is described, does not form the restriction to claim scope, and other substituting of being equal in fact that those skilled in that art can expect, all in the utility model protection range.
Claims (3)
1. communication equipment built-in aerial, be connected with mainboard, it is characterized in that, comprise circuit board, antenna, radio frequency connecting line and earth connection, described antenna is arranged on described circuit board, described radio frequency connecting line one end is connected with described antenna, the other end is connected with described mainboard, and described earth connection one end is connected with described antenna, the other end is connected with described mainboard.
2. communication equipment built-in aerial according to claim 1, is characterized in that, described earth connection and radio frequency connecting line homonymy arrange.
3. communication equipment built-in aerial according to claim 1 and 2, is characterized in that, the number of described earth connection is more than two, and arranges with described radio frequency connecting line homonymy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320186071.6U CN203398260U (en) | 2013-04-13 | 2013-04-13 | Built-in antenna for communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320186071.6U CN203398260U (en) | 2013-04-13 | 2013-04-13 | Built-in antenna for communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203398260U true CN203398260U (en) | 2014-01-15 |
Family
ID=49909765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320186071.6U Expired - Lifetime CN203398260U (en) | 2013-04-13 | 2013-04-13 | Built-in antenna for communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203398260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299596A (en) * | 2016-09-20 | 2017-01-04 | 深圳市中天迅通信技术有限公司 | A kind of POS Serpentis type antenna without frequency deviation |
| CN107611572A (en) * | 2017-09-06 | 2018-01-19 | 合肥宗平计算机科技有限公司 | Anti-tampering communication apparatus built-in aerial |
-
2013
- 2013-04-13 CN CN201320186071.6U patent/CN203398260U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299596A (en) * | 2016-09-20 | 2017-01-04 | 深圳市中天迅通信技术有限公司 | A kind of POS Serpentis type antenna without frequency deviation |
| CN107611572A (en) * | 2017-09-06 | 2018-01-19 | 合肥宗平计算机科技有限公司 | Anti-tampering communication apparatus built-in aerial |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |