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Single-feed gain, controllable multi-shaped-beam and wideband circular polarization millimetre wave transmission array antenna

A beam-shaped, circularly polarized technology, applied in the field of single-feed gain controllable multi-shaped beam broadband circularly polarized millimeter-wave transmission array antennas, can solve problems such as narrow operating bandwidth and beam shaking, and achieve low loss, low cost effect

Active Publication Date: 2019-03-12
SOUTHEAST UNIV
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Problems solved by technology

The single-feed multi-beam transmission arrays reported so far only achieve linearly polarized multi-pencil beams with the same gain. The working bandwidth of the array is narrow, and the phenomenon of beam shaking is serious

Method used

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  • Single-feed gain, controllable multi-shaped-beam and wideband circular polarization millimetre wave transmission array antenna
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  • Single-feed gain, controllable multi-shaped-beam and wideband circular polarization millimetre wave transmission array antenna

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Embodiment Construction

[0033] A single-feed source gain controllable multi-shaped beam broadband circularly polarized millimeter-wave transmission array antenna of the present invention comprises a circularly polarized feed antenna and a planar transmission array; the basic unit structure of the planar transmission array is composed of an upper metal sheet, middle metal patch, and lower metal patch. Between the upper metal patch and the middle metal patch is the first layer of dielectric substrate, and between the middle layer metal patch and the lower layer of metal patch is the second layer of dielectric substrate. .

[0034] The central axis of the circularly polarized feed antenna and the central axis of the planar transmission array are at the same horizontal height, and the distance between the feed antenna and the planar transmission array is F, and the diameter of the planar transmission array is D, where 0.6≤F / D≤ 1.2.

[0035] The planar transmission array is composed of identical basic un...

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Abstract

The invention discloses a single-feed gain, controllable multi-shaped-beam and wideband circular polarization millimetre wave transmission array antenna. The antenna comprises a circular polarizationfeed antenna (1) and a plane transmission array (2); the plane transmission array (2) is positioned at the front part of the opening of the horn mouth of the circular polarization feed antenna (1); the central axis of the circular polarization feed antenna (1) and the central axis of the plane transmission array (2) are positioned on the same central axis; the plane transmission array (2) is composed of completely same basic unit structures (3) in periodic arrangement; the central axis of the circular polarization feed antenna (1) and the central axis of the plane transmission array (2) are positioned on the same central axis; distribution of the horizontal rotation angle of each basic unit structure of the plane transmission array (2) in the plane is optimally designed; the wideband circular polarization multi-shaped-beam can be realized by utilization of the geometric phase generated by the unit; and the antenna has the wide application prospect in millimetre wave point-to-multipointcommunication and point-to-multi-area coverage aspect.

Description

technical field [0001] The invention belongs to the field of wireless communication system electronic devices, in particular to a single-feed source gain-controllable multi-shaped beam broadband circularly polarized millimeter-wave transmission array antenna, which can realize multi-directional circular poles with non-uniform gain in a wide frequency band Polarized beams and multi-shaped circularly polarized beams can be used in the fields of fifth-generation mobile communications, millimeter-wave point-to-multipoint communications, and millimeter-wave point-to-multiple area coverage. Background technique [0002] Transmission array is a kind of discrete electromagnetic lens with non-uniform transmission phase. Due to its lightness, planarization and low loss, it can be widely used in point-to-point communication, satellite communication and other fields. Compared with reflective arrays, transmissive arrays are not subject to performance degradation caused by feed blockage, ...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50H01Q21/00
CPCH01Q1/36H01Q1/38H01Q1/50H01Q21/00
Inventor 蒋之浩洪伟
Owner SOUTHEAST UNIV
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