双频双极化基站天线

By using a substrate-integrated waveguide resonator structure, the problem of large profile thickness of dual-frequency dual-polarized antennas is solved, realizing miniaturized and low-profile dual-frequency dual-polarized base station antennas with high gain and high isolation.

CN121922877BActive Publication Date: 2026-07-17ZHONGTIAN COMM TECH CO LTD +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHONGTIAN COMM TECH CO LTD
Filing Date
2026-03-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing dual-frequency dual-polarized antennas have a relatively high profile thickness and large antenna size due to the thickness of the radiating element and reflector, as well as the requirements for electromagnetic spacing.

Method used

By adopting a substrate integrated waveguide resonator structure, and by setting multiple metallized vias, a first patch layer and a ground layer on the first substrate, combined with the feeding components, dual polarization and dual-band characteristics are achieved, reducing the overall cross-sectional thickness of the antenna.

Benefits of technology

It achieves miniaturization and low profile characteristics of the antenna while maintaining dual-band and dual-polarization characteristics, and has high gain, isolation and cross-polarization discrimination.

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    Figure CN121922877B_ABST
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Abstract

本申请涉及天线技术领域,尤其涉及一种双频双极化基站天线。双频双极化基站天线包括第一基板、第一贴片层、接地层和馈电组件,第一基板上具有多个金属化通孔。第一贴片层上具有第一缝隙、第二缝隙和第三缝隙。接地层设置在第一基板背离第一贴片层的一面,第一贴片层、接地层和具有多个金属化通孔的第一基板共同构成表面具有三种缝隙形式的基片集成波导谐振器。馈电组件包括第一馈电件和第二馈电件,第一馈电件和第二馈电件均设置在接地层上并与第一贴片层连接,第一馈电件与第二馈电件分别用于外接不同极化方向的电磁信号,并将电磁信号馈入基片集成波导谐振器。本申请提供的双频双极化基站天线,具备低剖面、小型化的优点。
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