Article

High-Isolation High-Efficiency Dual-Polarized Cavity-Back Slot Antenna Array

Jia-Hui LuSchool of Electronic and Information Engineering, Foshan University,Foshan,ChinaRui-Sen ChenSchool of Electronic and Information Engineering, Foshan University,Foshan,ChinaQiang ShaoSchool of Electronic and Information Engineering, Foshan University,Foshan,ChinaGuan-Long HuangSchool of Electronic and Information Engineering, Foshan University,Foshan,ChinaKhujayarov IlyosSamarkand branch of Tashkent U niversity of Information Technol ogies named after Muhammad Al-Khwarizmi,Department of Information Technologies,Tashkent,Uzbekistan,100084Asim Ali KhanCOMSATS University Islamabad Islamabad,Department of Electrical and Computer Engineering,Islamabad,Pakistan,45550Biqun WuGuangdong Broadradio Communication Technology Co., Ltd,Guangzhou,China,515500Guo‐Min YangSchool of Electronic and Information Engineering, Foshan University,Foshan,China

2025

ABI

Abstract

This paper introduces a dual-polarized cavity-back slot antenna array with high isolation and high efficiency based on a single resonant cavity. Two orthogonal cavity modes, i.e., TE<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">101</inf> and TE<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">011</inf>, are generated for the design of the dual-polarized antenna. Due to the orthogonal filed distribution of the two modes, the proposed structure can achieve relatively high isolation. As the two modes have purely-directional electric field distribution, all the radiation slots can be directly excited by the electric field without requiring the power dividers, bringing out a simple antenna structure compared to traditional all-metal waveguide antennas. Finally, an 8×8 dual-polarized antenna array is presented and designed. Final simulations demonstrate that the proposed 8×8 dual-polarized antenna array exhibits a peak gain of 20 dBi and a high efficiency up to 99.8%.

Topics

Superconducting and THz Device Technology Full-Duplex Wireless Communications Radio Frequency Integrated Circuit Design

Identifiers

DOI: 10.1109/csrswtc67757.2025.11384465

Citations and references

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