Method for increasing equivalent height of PIFA antenna device

An antenna device and equivalent height technology, applied in the direction of antenna support/installation device, antenna, electrical components, etc., can solve problems such as easy disconnection, poor mobile phone signal, and poor antenna efficiency, so as to reduce SAR value, Improve the effect of communication signal

Inactive Publication Date: 2012-05-16
INVENTEC APPLIANCES (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of antenna height, the antenna bandwidth is not enough and the antenna efficiency is not good
The final result is that the signal of the mobile phone is not good, the call is easy to disconnect, and the value of the specific absorption rate (SAR, Specific Absorption Rate) of the mobile phone is easy to exceed the standard

Method used

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  • Method for increasing equivalent height of PIFA antenna device
  • Method for increasing equivalent height of PIFA antenna device
  • Method for increasing equivalent height of PIFA antenna device

Examples

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Embodiment Construction

[0013] Combine below figure 2 , 3 The present invention will be described. The two pins of the antenna 1 of the present invention are still respectively connected to the antenna feed point 5 and the antenna ground point 6 on the circuit board 2, and they can be connected by welding, or they can be pressed against by a bracket (generally an antenna bracket) On the antenna feed point 5 and the antenna ground point 6.

[0014] The key point of the present invention is, at first removed the copper 12 that lays in PIFA antenna area in the prior art (referring to figure 1 ), which is equivalent to digging out the ground plane formed by laying copper in the PIFA antenna area. This can be achieved by not laying copper in the antenna area on the circuit board (PCB) 2 , leaving only the substrate of the circuit board.

[0015] And the inventive point of the present invention is to weld a metal block 3 at the opposite side of the circuit board 2 and the PIFA antenna 1, and the metal...

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PUM

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Abstract

The utility model discloses a method to increase the equivalent altitude of PIFA antenna devices, which can increase the equivalent altitude of PIFA antenna, so as to strengthen the communication signals of mobile telephones and reduce SAR value of mobile telephones. The PIFA antenna comprises two pins, with one pin connected with antenna feed point of the circuit board and the other pin connected with the antenna earth point of the circuit board. First, the copper in PIFA antenna field on the circuit board is removed, and then a metal block is welded on the reverse side of the circuit board corresponding with PIFA antenna. The metal block is earthed, and is a hollow sheet iron similar to a shielding enclosure.

Description

technical field [0001] The invention relates to a PIFA antenna device, in particular to a method for increasing the equivalent height of the PIFA antenna device. Background technique [0002] With the development of mobile phone technology and people's pursuit of fashion, light, thin, short and small have become an important trend in the development of mobile phones. Generally speaking, the current main boards of mobile phones mainly include six-layer boards and eight-layer boards, and the thickness is about 1mm. In the antenna area, there is generally a layer of reference ground. To get a good antenna, there should be no large metal components such as speakers (speaker) and receiver (receiver) directly below the antenna within 7mm. Generally, the higher the height of the antenna to the ground, the better the performance of the antenna can be guaranteed. [0003] Currently, the Planar Inverted F Antenna (Planar Inverted F Antenna, referred to as "PIFA antenna") is named a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/24H01Q13/08
Inventor 阮达何代水
Owner INVENTEC APPLIANCES (SHANGHAI) CO LTD
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