High-isolation low-profile dual-polarized antenna applied to WLAN

A dual-polarized antenna and high-isolation technology, which is applied to antenna arrays, antennas, and antenna arrays that are powered independently, can solve problems such as cross-polarized component elevation, unfavorable scale production, and antenna radiation pattern distortion, etc., to achieve The effect of expanding the working bandwidth of the antenna, simple structure and low profile

Active Publication Date: 2020-03-27
佛山市南海微波通讯设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There have been many research results to solve this problem. The complexity of the L-shaped probe feeding excitation structure is not conducive to large-scale production; the multi-layer microstrip patch antenna needs to be bonded between layers, and the variety of dielectric materials is not conducive to the temperature alternating application environment. ; If the dielectric layer is simply thickened, the radiation pattern of the antenna will be distorted and the cross-polarization component will increase

Method used

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  • High-isolation low-profile dual-polarized antenna applied to WLAN
  • High-isolation low-profile dual-polarized antenna applied to WLAN
  • High-isolation low-profile dual-polarized antenna applied to WLAN

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Embodiment Construction

[0015] Such as figure 1 As shown, the present invention includes a microstrip substrate, a metal ground plate, a feeder line, a metal boss, and a radiation unit. The invention consists of a single-sided microstrip circuit board and a grounding structure board with a rectangular air back cavity. The upper surface of the circuit board is etched with the radiation patch and the microstrip line feeding it. A metal rectangular boss is formed on the periphery of the back cavity, which can be used as a supporting surface of the microstrip substrate, and an air layer is formed between the feeder line and the metal ground plate, and a mixed dielectric layer with a mixed dielectric constant is formed with the microstrip substrate. The height of the metal rectangular boss makes it easier to match the entire microstrip feed network, which ensures sufficient antenna working bandwidth. The radiating element is located directly above the cavity, the four corners of the element are cut corner...

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Abstract

The invention discloses a high-isolation low-profile dual-polarized antenna applied to a WLAN. The antenna is composed of a single-sided microstrip circuit board and a grounding structure board with arectangular air back cavity. Antenna working bandwidth expansion is realized, meanwhile, the structural advantages and the radiation performance of the single-layer microstrip antenna are maintained,the innovative structural form of the single-layer microstrip and the back cavity is used, the microstrip patch antenna array which has the advantages of being simple in structure, low in profile, capable of being integrated with a feed network easily and the like and conveniently achieve high efficiency and low profile is designed.

Description

Technical field [0001] The present invention relates to the technical field of communication equipment, and more specifically to a dual-polarized antenna with high isolation and low profile applied to WLAN. Background technique [0002] With the development of technology and the promotion of demand, people have put forward higher and higher requirements for microstrip antennas, which have the capabilities of broadband, high efficiency, light weight, and easy conformal thin layers. At the same time, they have simple, easy and convenient feeding. Antennas with characteristics such as integrated electrical network design have become more and more popular. The radiation units of this type of antenna include open waveguides, printed oscillators, and waveguide slots. Because the microstrip patch antenna has significant advantages such as low profile, light weight, and easy processing, it has been popularized and applied. For conventional microstrip patch antennas, its shortcomings are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q21/00H01Q21/06
CPCH01Q1/38H01Q1/48H01Q1/50H01Q21/0006H01Q21/065
Inventor 谭远枝邓崇础成从兵
Owner 佛山市南海微波通讯设备有限公司
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