Broadband high-isolation antenna array with same circular polarization for transmitting and receiving

An antenna array and circularly polarized technology, which is applied in the directions of individually powered antenna arrays, antenna arrays, antennas, etc., can solve the problems of narrow operating frequency band, lack of universality, and the implementation method cannot be extended to other frequency bands, and achieves easy implementation. Effect

Pending Publication Date: 2022-06-28
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the 2.4GHz WLAN frequency band, the port isolation needs to be further improved, and due to structural limitations, the antenna is also difficult to apply to more frequency bands
[0006] At present, relevant studies have reported high-isolation dual circularly polarized antennas. Generally speaking, the results of these reports either need to be further improved in port isolation, or the working frequency band is too narrow, and its implementation method cannot be extended to other frequency bands, that is, it is not universal. suitability

Method used

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  • Broadband high-isolation antenna array with same circular polarization for transmitting and receiving
  • Broadband high-isolation antenna array with same circular polarization for transmitting and receiving
  • Broadband high-isolation antenna array with same circular polarization for transmitting and receiving

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Embodiment Construction

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] like Figures 1~8 As shown, a broadband high-isolation antenna array with the same circular polarization for transmission and reception, from bottom to top are a first dielectric board, a hole-drilled floor, a second dielectric board, and a third dielectric board, and the back of the first dielectric board is A first feeding network is provided, a second feeding network and a radiation patch are provided on the front of the second dielectric plate, and a parasitic patch is provided on the back of the third dielectric plate.

[0036] The radiation unit part consists of eight radiation units. All radiation units work in the linear polarization mode. The eight radiation units are arranged in a "well" shape according to the number from small to large, and they are respectively recorded as the first radiation unit 1 and the second radiation uni...

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Abstract

The invention provides a broadband high-isolation antenna array with same circular polarization for receiving and transmitting, and belongs to the technical field of microwave antennas. The antenna comprises eight radiation units which are distributed in a # shape, every four radiation units form a group, and two groups form the same circular polarization. According to the invention, high-isolation same-direction circular polarization can be realized on a wide frequency band, and the antenna can be used in a same-frequency simultaneous full duplex system and other microwave communication systems.

Description

technical field [0001] The invention belongs to the technical field of microwave antennas, and in particular relates to a broadband high-isolation antenna array whose transmission and reception of differential feeds are co-directional circular polarization. Background technique [0002] As the basic device for receiving and transmitting radio waves, the antenna is an indispensable part of the wireless communication system. Circularly polarized antennas are commonly used in in-vehicle communication systems, airborne and satellite communications. With the exploding demand for information data exchange, advanced applications based on massive multiple-input multiple-output (MIMO) and indoor directional wireless power transfer systems emerge, using multi-port antennas for both transmit (Tx) and receive (Rx) This brings significant advantages, especially when taking into account the size and possible compactness of the antenna system. For such applications, how to improve the is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/06H01Q21/00H01Q3/28H01Q3/34H01Q1/52H01Q1/50
CPCH01Q21/065H01Q21/0075H01Q3/28H01Q3/34H01Q1/525
Inventor 姚志会申建华李家林付野孙书良张磊杜福临
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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