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Method for spreading antenna bandwidth

A technology to expand antenna and bandwidth, applied in the direction of antenna, electrical components, etc., can solve problems such as insufficient bandwidth, and achieve the effect of meeting market demand

Inactive Publication Date: 2009-05-27
TECHFAITH WIRELESS TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of insufficient bandwidth in antenna design, the present invention proposes a solution. Using the existing technology, a resistance-capacitance circuit is connected in series at the non-feed point pin of the antenna to expand the antenna bandwidth. It is verified by experiments that this expansion The method of antenna bandwidth is completely feasible

Method used

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  • Method for spreading antenna bandwidth
  • Method for spreading antenna bandwidth
  • Method for spreading antenna bandwidth

Examples

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Embodiment Construction

[0022] In order to better illustrate the present invention, the present invention will be further described through specific examples below.

[0023] Such as figure 1 Shown is a schematic diagram of the antenna 110 in the prior art, which is a typical two-contact antenna. One is the antenna feed point 120, the other is the antenna ground pin 130, and the ground pin 130 It is connected to the ground network 150 of the printed circuit board 140. Its circuit diagram is as follows Figure 6 Shown, the VSWR (voltage standing wave ratio of prior art, voltage standing-wave ratio) data such as image 3 As shown, its frequency low-end antenna bandwidth is 240MHz (VSWR<4).

[0024] Such as figure 2 Shown is a schematic diagram of the antenna 210 of the present invention, which is a typical two-contact antenna with a RC circuit 240 connected in series between the antenna ground pin 230 and the ground network 260 of the printed circuit board 250 .

[0025] Embodiment 1 of the presen...

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PUM

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Abstract

The invention discloses a method for expanding the bandwidth of an antenna. The method is to add a resistance-capacitance sensing circuit on a ground foundation of the antenna to expand the bandwidth of the antenna. The method can realize the miniaturized antenna with high performance and meet the market demand.

Description

technical field [0001] The invention relates to electronic products, in particular to a method for extending antenna bandwidth of communication products such as mobile phones and base stations. Background technique [0002] At present, as the world communication industry is in the ascendant, new standards and new frequency bands are constantly appearing, while communication products are getting smaller and smaller, which has higher requirements for the performance of the antenna, but a very wide range can be achieved in a small volume. Antenna frequency band is a difficult problem for antenna engineers. [0003] The antenna can be divided into single contact point antenna, double contact point antenna and multi-contact point antenna according to the contact point. The contact point of the single contact point antenna is called the antenna feed point, which is the entrance of the signal input to the antenna. The double contact point antenna One of the contact points is the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q23/00
Inventor 马大鹏
Owner TECHFAITH WIRELESS TECH BEIJING