Novel millimeter-wave low-profile planar differential double-helix antenna

A double-helix, millimeter-wave technology, applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problems of planar helical antennas that cannot apply differential RF front-ends, asymmetrical pattern, poor radiation directivity, etc., to achieve Enrich practical applications, improve circular polarization gain, and gain stability
CN111585014APending Publication Date: 2020-08-25SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2020-08-25

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Abstract

The invention discloses a novel millimeter-wave low-profile planar differential double-helix antenna. The antenna consists of three parts: a first part has a feed structure, the differential feed is realized through strip lines located at two sides of the front bottom of the same dielectric plate, and the two sides of the front bottom are completely symmetrical; a second part is of a planar helixstructure, one end of the helix is connected with the strip line, and the other end axially extends, the planar helix is formed by connecting metal strips printed on the front surface and the bottom surface of the dielectric plate with the metalized via holes in a staggered manner and is of a double-helix structure, the diameter of the helix is gradually increased, and the structures of the frontsurface and the bottom surface of the dielectric plate are in 180-degree rotational symmetry; and a third part is of a parasitic structure and is composed of a metallized via hole and metal strips printed on the two sides of the front bottom of the dielectric plate. The parasitic unit is disposed around the helix. The antenna has the advantages of being low in profile, wide in bandwidth, stable incircular polarization gain, good in radiation directivity, simple in structure, easy to process and the like, and has a good application prospect in the 5G millimeter wave frequency band.
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Description

technical field

[0001] The invention relates to the technical field of 5G millimeter-wave antennas, in particular to a novel millimeter-wave low-profile planar differential double-helix antenna. Background technique

[0002] With the rapid development of wireless communication technology, people's requirements for communication quality are also constantly improving. Due to the increasing utilization and development of the microwave frequency band, the microwave frequency band becomes more and more crowded, and the available bandwidth becomes narrower and narrower. Millimeter wave technology is an important direction of wireless technology development in recent years. It has very important value in military, civil and industrial fields, and has attracted extensive attention from academia and industry. Especially with the advent of the 5G era, the research and development of 5G millimeter wave antennas has become crucial.

[0003] Modern communication systems need to achieve...

Claims

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