[B-1B] Antennas and Propagation B (Antennas general)

11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)Candidate for Academic Incentive AwardCareer Explorer

[B-1B-52] Broadband Design of 120 GHz-band Post-Wall Waveguide Radiating E-plane Cross-Junction Coupler

◎△Hirotaka Terashima¹, Takashi Tomura¹, Daisuke Yamanaka², Osamu Kagaya² (1. Science Tokyo, 2. AGC Inc.)

Keywords:

Radiating E-plane Cross-Junction Coupler,Post-Wall Waveguide,Broadband Design

The radiating E-plane cross-junction coupler, one of the key components of a 120-GHz-band two-dimensional beam-switching circuit, has a limited operating bandwidth of only 0.42% fractional bandwidth in the conventional design. In this study, the bandwidth of the radiating E-plane cross-junction coupler was enhanced by modifying the slot dimensions, the slot offset from the waveguide center, and the post arrangement. As a result, a fractional bandwidth of 2.16% was achieved, confirming the effectiveness of the proposed design method.