An integrated design millimeter wave dual-polarized DRA wide-angle scanning phased array based on a directional diagram reconfigurable unit

By constructing a millimeter-wave dual-polarization DRA wide-angle scanning phased array based on the integrated design of pattern reconfigurable units, the problems of high processing difficulty and limited performance improvement in the existing technology are solved, and a high-performance millimeter-wave dual-polarization DRA wide-angle scanning phased array that is easy to process is realized.

CN122202867APending Publication Date: 2026-06-12SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Filing Date
2026-03-27
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

There is a lack of research on existing millimeter-wave dual-polarized DRA wide-angle scanning arrays, and their fabrication is difficult, which limits performance improvement and makes them difficult to use effectively in engineering applications.

Method used

An integrated design based on pattern reconfigurable units is adopted. A millimeter-wave dual-polarization DRA wide-angle scanning phased array is constructed through a dielectric substrate, a metal ground plane, a feeding structure, and a decoupling structure. The beam coverage range is extended by using microstrip line excitation and phase difference adjustment to construct linear and planar phased arrays.

Benefits of technology

A millimeter-wave dual-polarization DRA wide-angle scanning phased array that is easy to manufacture has been realized, which expands the beam scanning range, solves the problems of manufacturing complexity and positioning difficulty, and improves the scanning performance of the array.

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Abstract

This invention discloses an integrated design of a millimeter-wave dual-polarization (DRA) wide-angle scanning phased array based on pattern reconfigurable units. The pattern reconfigurable unit includes a radiating element, a decoupling structure, and a feeding structure. The radiating element includes a dielectric substrate with a metal ground plane at its bottom. The feeding structure includes a coupling slot and a microstrip line. The coupling slot is located on the metal ground plane, and the microstrip line is located on the lower surface of the bottom dielectric substrate, which is situated at the bottom of the metal ground plane. The decoupling structure includes decoupling structures for orthogonal polarization ports and decoupling structures for co-polarization ports. The decoupling structure for orthogonal polarization ports includes a short-circuit metal via and a square patch on the short-circuit metal via. The decoupling structure for co-polarization ports includes an open-circuit metal via and a metal patch above the open-circuit metal via. The pattern reconfigurable unit is used to form the phased array. This invention achieves excellent wide-angle scanning performance and has strong application prospects in millimeter-wave communication systems.
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