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A Low Cross-Polarization Ultra-Broadband Strongly Coupling Antipodal Dipole Phased Array Antenna

A phased array antenna and strong coupling technology, applied in antennas, resonant antennas, antenna coupling, etc., can solve the problems of excessive weight, poor antenna cross-polarization, and poor isolation characteristics, and achieve light overall weight and lighten the antenna Effect of weight and easy processing

Active Publication Date: 2019-07-26
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the cross-polarized ultra-broadband strong-coupled antipodal dipole phased array antenna provided by the present invention solves the problems of poor cross-polarization, excessive weight and isolation in the existing phased array antennas. The problem of poor degree characteristics

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  • A Low Cross-Polarization Ultra-Broadband Strongly Coupling Antipodal Dipole Phased Array Antenna
  • A Low Cross-Polarization Ultra-Broadband Strongly Coupling Antipodal Dipole Phased Array Antenna
  • A Low Cross-Polarization Ultra-Broadband Strongly Coupling Antipodal Dipole Phased Array Antenna

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Embodiment Construction

[0031] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0032] Such as figure 1 As shown, a low-cross-polarized ultra-broadband strong-coupling antipodal dipole phased array antenna, including an antipodal strong-coupling dipole unit 1, an impedance matching layer 2 and a reflective floor 3; The bottom of the unit 1 is vertically embedded in the reflective floor 3 , and the impedance matching layer 2 is arranged on the top of the antipodal strong coupling dipole unit 1 and paral...

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Abstract

The invention discloses a low-cross polarization ultra-broadband strong-coupling antipodal dipole phased array antenna. The bottom is vertically embedded in the reflective floor, and the impedance matching layer is arranged on the top of the antipodal strong coupling dipole unit and parallel to the reflective floor. The present invention overcomes the weakness of the inherent cross polarization difference of this type of antenna by improving the traditional vertical strong coupling phased array antenna by using a double-layer dielectric substrate and an antipodal dipole structure; it is connected with a double-layer dipole patch The feeding balun part is designed with a unique metal through hole to suppress the resonance of the array in the high frequency band, and to a certain extent improve the isolation between the array units. The open annular metamaterial wide-angle impedance matching layer above the antenna replaces the traditional pure dielectric wide-angle impedance matching layer, which achieves the characteristics of light weight, easy conformality, and modularization.

Description

technical field [0001] The invention belongs to the technical field of antenna engineering, and in particular relates to a low-cross polarization ultra-wideband strong-coupling antipodal dipole phased array antenna. Background technique [0002] The phased array antenna adds the ability to phase control the beam in the array antenna. Phased array antennas have nanosecond-level fast beam scanning capabilities, and have no shortcomings such as motion inertia, time delay, and mechanical vibration that mechanical beam scanning systems have, so they are widely used in target detection, tracking, imaging, and satellite communications. . The phased array antenna with wide-band and wide-angle scanning characteristics is a commonly used antenna form in modern radar systems. With the rapid development of modern military technology, various military electronic systems have put forward higher requirements for the wide-bandwidth and wide-angle scanning characteristics of phased arrays....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q9/16H01Q15/24H01Q19/10H01Q21/00H01Q21/06
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/523H01Q9/16H01Q15/24H01Q19/104H01Q21/0006H01Q21/062H01Q21/065
Inventor 杨仕文王炳均陈益凯屈世伟
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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