Millimeter-wave integrated log-periodic antenna based on multi-layer PCB

A logarithmic period, millimeter wave technology, applied in antennas, antenna arrays, resonant antennas, etc., can solve problems such as lack of ideas and reports, and achieve the effects of wide bandwidth, increased gain, and reduced backlobe

Active Publication Date: 2022-04-22
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There have been a lot of work reports on the design of logarithmic periodic antennas, but there is no report on the idea of ​​this design

Method used

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  • Millimeter-wave integrated log-periodic antenna based on multi-layer PCB
  • Millimeter-wave integrated log-periodic antenna based on multi-layer PCB
  • Millimeter-wave integrated log-periodic antenna based on multi-layer PCB

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Effect test

Embodiment

[0040] For the working antenna of the ultra-wideband wireless communication system, this embodiment designs an easily integrated millimeter-wave ultra-wideband array antenna based on a multilayer PCB, which can be used in a wireless communication system. The antenna can cover the frequency band of 32.5-46.5GHz, and can also be optimized to cover a wider frequency band. The antenna mainly includes structures such as a radiator, a dielectric base metal ground plane, and a microstrip balun feed.

[0041] The antenna radiator is composed of multi-layer PCB and connected with different radiation branches by short-circuit pins. The maximum length of the radiation stub is approximately half the wavelength of the lowest frequency point; the minimum length is approximately the half wavelength of the highest frequency point.

[0042] The millimeter-wave ultra-wideband logarithmic periodic array antenna involved in the above-mentioned embodiment, its schematic diagram is as follows fig...

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Abstract

The invention provides a millimeter-wave ultra-wideband logarithmic periodic antenna based on a multilayer PCB, including: a multilayer PCB dielectric substrate, an antenna radiator, a metallized through hole, and a microstrip feeder, and the metallized through hole is arranged on the PCB dielectric substrate Inside; multi-layer PCB dielectric substrates are stacked, and the multi-layer PCB dielectric substrate includes a feed layer dielectric substrate, a plurality of first substrates arranged above the feed layer dielectric substrate, and a second substrate arranged below the feed layer dielectric substrate The substrate; the upper surfaces of the multiple first substrates are all provided with radiation branches, and the metallized through holes of two adjacent first substrates are connected through the radiation branches; the copper clad layer above the dielectric substrate of the feeding layer is etched with fan-shaped gaps and arranged on the The microstrip feeder under the dielectric substrate of the feeding layer is coupled for feeding; the bottommost second substrate forms an AMC structure. The invention uses a multi-layer PCB structure, so that the antennas also have the advantages of low profile and easy integration when forming an array.

Description

technical field [0001] The present invention relates to the technical field of antennas, in particular to a multilayer PCB-based millimeter-wave ultra-wideband logarithmic periodic antenna. Background technique [0002] The current wireless communication technology is developing rapidly to meet people's demand for information. With the advent of the 5G era, millimeter-wave frequency bands are gradually being used more and more, and the design of millimeter-wave antennas becomes very necessary. The millimeter-wave ultra-wideband antenna can reduce the use of a large number of antennas, thereby reducing the size of the wireless communication system. There are also a lot of work in the direction of millimeter-wave ultra-wideband antennas at home and abroad. The invention improves the logarithmic period antenna and applies it to millimeter wave ultra-wideband. There have been a lot of work reports on the design of logarithmic periodic antennas, but there is no report on the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q21/00H01Q9/04
CPCH01Q1/38H01Q21/00H01Q9/04
Inventor 徐光辉黄道胜杨利霞黄志祥
Owner ANHUI UNIVERSITY
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