Small broadband PIFA antenna and design method thereof

A design method and antenna technology, applied in antennas, antenna grounding devices, design optimization/simulation, etc., can solve the problems of reducing antenna bandwidth and efficiency, and achieve the effects of light weight, compact antenna structure, and small volume

Pending Publication Date: 2022-04-26
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Reducing the size of the PIFA antenna severely reduces the antenna bandwidth and its efficiency

Method used

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  • Small broadband PIFA antenna and design method thereof
  • Small broadband PIFA antenna and design method thereof
  • Small broadband PIFA antenna and design method thereof

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Embodiment Construction

[0024] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] The antenna structure of this embodiment is as figure 1 As shown, a 4-port MIMO structure is formed based on a small PIFA structure, and the overall size is only 30*30*0.8mm 3 , where the radiation element width is w 1 =1mm, the overall length is L a =18.5mm, the ground plane length is L g =11mm, width is w g = 8.5 mm. And through the technical solution proposed by the present invention, the antenna has a good working frequency band of 2300-5500MHz, can work in mobile communication frequency bands such as Wi-Fi / WiMAX / 5G, and can realize Wi-Fi dual-band operation.

[0026] The specific implementation process of this structure is as follows:

[0027] Step 1. First use the simulation software to design a 4-port MIMO antenna formed by the rotation of a small PIFA structure, such as figure 2 shown. Then th...

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Abstract

The invention belongs to the field of antenna design, and relates to a small broadband PIFA antenna and a design method thereof. According to the PIFA antenna, the groove penetrating through the ground plane is formed in the current flowing area of the ground plane of the PIFA antenna in the current flowing direction, so that the current path is increased, and the purpose of expanding the bandwidth is achieved. The small-sized broadband PIFA/MIMO antenna provided by the invention can work in wider mobile communication frequency bands such as Wi-Fi/WiMAX/5G and the like, and on the basis of ensuring miniaturization of the PIFA antenna, namely on the premise of not adding branches or increasing the profile height of the antenna, the working bandwidth of the antenna is expanded, and the working performance of the antenna is improved; and the device can be easily integrated on wireless equipment to meet more application requirements.

Description

technical field [0001] The invention belongs to the field of antenna design, and relates to a small broadband PIFA antenna and a design method thereof. Background technique [0002] The IEEE standard definition (IEEE Std 145 1983) defines an antenna as a means of radiating or receiving radio waves. That is, the antenna is a transitional structure between free space and the guide. Affected by the excitation source, the charge in the antenna moves at a variable speed to generate electromagnetic waves, and radiates the energy of the electromagnetic waves into free space. [0003] The PIFA antenna is a planar inverted F antenna, which has the advantages of simple structure, small size, light weight, easy to conform to the carrier, and can realize broadband or multi-band. And today in order to provide higher transmission rates, high levels of throughput, enhanced channel capacity and better reliability are required. To optimize its performance, mobile terminals need to employ ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q5/50H01Q1/24H01Q1/38H01Q1/48H01Q1/50H01Q5/28G06F30/10G06F30/20
CPCH01Q5/50H01Q1/48H01Q1/243H01Q1/38H01Q1/50H01Q5/28G06F30/10G06F30/20
Inventor 胡玉禄李婧涵黄桃李斌杨中海
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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