小型化波导圆极化阵列天线设计  

Miniaturized Waveguide CP Array Antennas Design

作　　者：李明泽[1,2] 刘浩[2] 李昊霖 于伟华[1,2] LI Mingze;LIU Hao;LI Haolin;YU Weihua(School of Integrated Circuits and Electronics,Beijing Institute of Technology,Beijing 100081,China;Chongqing Institute of Microelectronics and Microsystems,Beijing Institute of Technology,Chongqing 401332,China)

机构地区：[1]北京理工大学集成电路与电子学院,北京100081 [2]北京理工大学重庆微电子研究院,重庆401332

出　　处：《微波学报》2024年第S1期40-43,共4页Journal of Microwaves

摘　　要：本文设计了一种太赫兹小型化波导圆极化阵列天线,其中包括十六个圆极化辐射单元组成的辐射口面和一分十六功分器。圆极化辐射单元是由波导口激励的加载了梯形金属块的辐射腔体。为适应4×4阵列天线馈电口的紧凑性,采用了4层馈电网络组成的一分十六功分器。最终天线尺寸为4.4λ×5.08λ×7.2λ(f=145GHz),在140-150GHz内平均增益22.8dBi,轴比小于2.5dB。同时实现了圆极化阵列天线的小型化与高增益,对于小型化波导圆极化阵列天线的发展及其应用具有参考价值。This paper designs a miniaturized terahertz CP waveguide array antenna,which includes a radiating aperture composed of sixteen CP radiating elements and a 1-to-16 power divider.The CP radiating elements are radiation cavities loaded with trapezoidal metal blocks excited by waveguide ports.To accommodate the compactness of the 4×4 array antenna feed port,a 1-to-16 power divider composed of a 4-layer feed network is adopted.The final antenna dimensions are 4.4λ×5.08λ×7.2λ(f=145GHz),with an average gain of 22.8dBi and an axial ratio of less than 2.5dB within 140-150GHz.This achievement realizes the miniaturization and high gain of the CP array antenna,providing valuable reference for the development and application of miniaturized waveguide CP array antennas.

关 键 词：太赫兹 小型化 圆极化 波导馈电网络 波导阵列天线 

分 类 号：TN821.1[电子电信—信息与通信工程]