Full D-Band Waveguide-to-Microstrip Transitions on Low-Cost PCBs
Journal
2025 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2025 - Proceedings
Start Page
58
End Page
60
ISBN (of the container)
979-833150353-6
Date Issued
2026-02-03
Author(s)
Lin, Chi-An
Abstract
This paper presents two novel waveguide-to-microstrip line transition structures based on a bow-tie antenna, designed for high-frequency applications on cost-effective printed circuit boards (PCBs). The first structure is a waveguide to coupled microstrip line transition that achieves a continuous operational bandwidth covering the entire D-band (110-170 GHz), with a single insertion loss below 0.5 dB and a return loss better than 10 dB. The second structure employs a pair of baluns to convert the coupled microstrip lien to a single microstrip line, providing a 50 GHz bandwidth (110-160 GHz) while maintaining the same loss standard. The results validate the effectiveness of these designs, offering promising low-cost solutions for high-frequency applications.
Event(s)
2025 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2025
Subjects
Bow-tie antenna
terahertz
transition
Publisher
IEEE
Type
conference paper