A High-Efficiency Slotted Waveguide Antenna Based on Higher-Order Mode Cavity

Wu-Guang Zhao, Wenhao Dai,Jingxue Wang,Ling Tian,Fan Wu

2023 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)（2023）

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摘要

A high-efficiency waveguide antenna is proposed in this paper. The antenna employs the $\mathrm{T}\mathrm{E}_{12,1,0}$ mode to excite the top-layer parallel-plate waveguide (PPW) slot array. Across the entire operating frequency band from 92.9 GHz to 100.8 GHz, it achieves a simulated gain exceeding 27.5 dBi and an efficiency greater than 90%. It represents an attractive solution for high-efficiency antennas in the sub-terahertz frequency band.

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关键词

High-efficiency,higher-order mode,slotted waveguide antenna

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