Single-port broadband dual-circular polarization dual-directional beam microstrip array antenna

A dual-circular polarization, microstrip array technology, applied in specific array feeding systems, individually powered antenna arrays, antennas, etc., can solve the problems of loss of radiated power, gain loss, insufficient aperture efficiency, etc., and achieve beam pointing The effect of stable, easy-to-design, broadband characteristic beam pointing

Inactive Publication Date: 2020-07-03
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the traditional sequential rotation technology only utilizes the circular polarization component of a single hand direction of the linearly polarized wave, and the circular polarization component of the other hand direction is canceled, so at least half of the radiated power w

Method used

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  • Single-port broadband dual-circular polarization dual-directional beam microstrip array antenna
  • Single-port broadband dual-circular polarization dual-directional beam microstrip array antenna
  • Single-port broadband dual-circular polarization dual-directional beam microstrip array antenna

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037]The single-port broadband dual-circular polarization dual-directional beam microstrip array antenna of the present invention is composed of a radiating element array, a metal floor and a single-port feeding network; the radiating element array and the metal floor are separated from top to bottom It is the first layer of dielectric substrate and bonding layer, and the second layer of dielectric substrate is between the metal floor and the single-port power supply network. The basic radiating unit of the microstrip array antenna adopts an aperture coupling feeding method, and the radiating unit has good linear polarization performance in three-dimensional spaces including E plane, H plane and other cross sections such as diagonal planes. The circular radiation patches that make up the radiation unit array and the H-shaped coupling slots opened on the metal floor ar...

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Abstract

The invention discloses a single-port broadband dual-circular polarization dual-directional beam microstrip array antenna. The antenna comprises a radiation unit array (1) which is composed of circular radiation patches (1a) arranged periodically, a metal floor (2) provided with an H-shaped coupling gap (2a), a single-port feed network (3) composed of an equal-amplitude power division phase shiftfeed network (3c) or an unequal-amplitude power division phase shift feed network (3d), and a first dielectric substrate layer (4), a bonding layer (5) and a second dielectric substrate layer (6) aresequentially arranged from top to bottom. Each H-shaped coupling slot (2a) rotates at different angles around a respective geometric center, and the geometric center of each H-shaped coupling slot (2a) is located right below the circular radiation patch (1a). By using the structure of the invention, through designing the rotation angle of each H-shaped coupling slot (2a) and the amplitude and phase distribution of each output port (3b) of the single-port feed network (3), dual-circular polarization dual-directional radiation beams can be realized, and the antenna has the advantages of wide frequency band, low profile, simple manufacturing and the like.

Description

technical field [0001] The invention belongs to the field of wireless communication system electronic devices, and in particular relates to a single-port broadband dual-circular polarization dual-directional beam microstrip array antenna. When the input port is excited, it can generate dual circularly polarized and dual directional beams, that is, a left-handed beam and a right-handed beam, and the direction of each circularly polarized beam can be independently controlled, which is suitable for satellite communication and point-to-multipoint communication and point-to-multi-area coverage. Background technique [0002] With the development of satellite communication, remote control and telemetry technology, the expansion of radar application range, and the need to track and detect targets under various polarization and climatic conditions, it is difficult for linear polarization beams to meet the requirements. The circular polarization antenna application becomes very impor...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q21/00H01Q21/06H01Q3/34H01Q15/24
CPCH01Q1/38H01Q1/50H01Q21/0006H01Q21/065H01Q3/34H01Q15/24
Inventor 蒋之浩马若飞田玲洪伟
Owner SOUTHEAST UNIV
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