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Single-layer broadband microstrip patch antenna array

A microstrip patch antenna and single-layer technology, which is applied in the direction of separately powered antenna array, antenna coupling, resonant antenna, etc., can solve the problems affecting the positioning accuracy, amplitude, and phase response of the wireless positioning system, so as to improve the amplitude, The effect of improving isolation and positioning signal accuracy

Pending Publication Date: 2022-04-05
PURPLE MOUNTAIN LAB
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Problems solved by technology

[0005] The present invention provides a single-layer broadband microstrip patch antenna array, which is used to solve the problem that the array elements in the antenna array in the prior art are affected by other array elements and the environment, causing each array element to respond to the amplitude and phase of incident electromagnetic waves different, resulting in received electrical signal amplitude, phase difference, thereby affecting the positioning accuracy of the wireless positioning system, to reduce the mutual influence between the array elements in the antenna array, reduce the phase difference between the array elements, and improve the wireless positioning System positioning accuracy

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Embodiment Construction

[0045] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0046] For ease of understanding, the terms involved in the invention are firstly explained below.

[0047] Return loss: Also known as reflection loss. It is the reflection of the cable link due to impedance mismatch, and it is the reflection of a pair of lines themselves.

[0048] Return loss is the ratio of the reflected wave power at the transmission line port to the incident wave power,...

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Abstract

The invention provides a single-layer broadband microstrip patch antenna array. The single-layer broadband microstrip patch antenna array comprises a plurality of array elements and folding gaps, the folding gap is located between two array elements, and the distance between the folding gap and the two adjacent array elements is equal; the folding gaps comprise transverse short gaps and longitudinal long gaps; and the end points of the transverse short gaps and the longitudinal long gaps are vertically crossed and circularly connected. By arranging the folding gap between the two array elements, the isolation between the adjacent array elements is improved, so that the influence of other array elements on each array element is reduced, the consistency of amplitude and phase response of each array element to incident electromagnetic waves is improved, and a positioning signal obtained based on the antenna array is more accurate.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a single-layer broadband microstrip patch antenna array. Background technique [0002] With the development of industries such as mobile communications, autonomous driving, and smart factories, the demand for location information is becoming more and more popular, and the requirements for location accuracy are getting higher and higher. Wireless positioning technology is an important way of location acquisition. There are many types and methods. Different positioning methods are often used for different scenarios. Currently, mainstream positioning technologies include RFID, Wi-Fi, UWB, Bluetooth and other positioning methods. [0003] In the wireless positioning system, the distance, angle, speed, etc. are all calculated by the measured value, so the relatively accurate measured value can ensure the positioning accuracy of the positioning system. The antenna is located at the f...

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Application Information

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IPC IPC(8): H01Q21/08H01Q1/52H01Q9/04
Inventor 徐海鹏李艳齐望东徐佳潘孟冠贾兴华
Owner PURPLE MOUNTAIN LAB
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