A 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: 2021-08-24
佛山市南海微波通讯设备有限公司
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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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  • A High Isolation Low Profile Dual Polarized Antenna Applied to WLAN
  • A High Isolation Low Profile Dual Polarized Antenna Applied to WLAN
  • A High Isolation Low Profile Dual Polarized Antenna Applied to WLAN

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Embodiment Construction

[0013] Such as figure 1 As shown, the present invention includes a microstrip substrate, a metal ground plate, a feeder, a metal boss, and a radiation unit. The invention consists of two parts: a single-sided microstrip circuit board and a grounding structural board with a rectangular air back cavity. The top surface of the board is etched with radiating patches and the microstrip lines that feed them. A metal annular boss is formed on the periphery of the back cavity, which can be used as a supporting surface for the microstrip substrate, and an air layer is formed between the feeder and the metal grounding plate, and a mixed dielectric layer with a mixed dielectric constant is formed with the microstrip substrate. There are two openings in the platform, which can keep the impedance of the feed line continuous without generating additional impedance mutations. By adjusting the height of the metal rectangular boss, it is easier to match the entire microstrip feed network, whi...

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Abstract

The invention discloses a dual-polarized antenna with high isolation and low profile applied to WLAN, which is composed of a single-sided microstrip circuit board and a grounding structure board with a rectangular air back cavity, which expands the working bandwidth of the antenna while maintaining The structural advantages and radiation performance of the single-layer microstrip antenna, using the innovative structure of a single-layer microstrip plus a back cavity, is designed with a simple structure, low profile, and easy integration with the feed network design. Advantages, it is easy to realize a microstrip patch antenna array with high efficiency and low profile.

Description

technical field [0001] The invention relates to the technical field of communication equipment, and more specifically relates 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 thin layers are easy to conform to the shape. More and more attention has been paid to antennas with characteristics such as integrated design of electrical networks. The radiating elements of this type of antenna include open waveguides, printed oscillators, and waveguide slots. The microstrip patch antenna has been popularized and applied due to its remarkable advantages of low profile, light weight, and easy processing. For conventional microstrip patch antennas, its disadvantages are as obvious as its advantages, that is...

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Application Information

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Patent Type & Authority Patents(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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