Broadband Partially Covered Microstrip-to-Waveguide Transition With Enhanced Radiation Suppression for Millimeter-Wave Transmission

A broadband microstrip-to-waveguide transition (MWT) structure is reported for efficient millimeter-wave (mm-wave) signal delivery. The transition design, incorporating a printed circuit board (PCB) with three copper layers and two dielectric layers to realize a partially covered microstrip line (MS...

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Bibliographic Details
Published in:IEEE microwave and wireless technology letters (Print) 2024-04, Vol.34 (4), p.1-4
Main Authors: Hafeez-Ur-Rehman, Song, Ha Il, Park, Sean, Jang, Jae-Hyung
Format: Article
Language:English
Subjects:
Broadband
Broadband communication
Circuit boards
Connectors
coupling loss
double resonance
Frequency ranges
leakage
Manufacturing
Microstrip
Microstrip transmission lines
microstrip-to-waveguide transition (MWT)
millimeter wave (mm wave)
Millimeter waves
Optical waveguides
partially covered
Printed circuits
radiation
Resonant frequency
Waveguide transitions
Waveguides
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Summary:A broadband microstrip-to-waveguide transition (MWT) structure is reported for efficient millimeter-wave (mm-wave) signal delivery. The transition design, incorporating a printed circuit board (PCB) with three copper layers and two dielectric layers to realize a partially covered microstrip line (MSL) and a via fence, achieves low loss and broadband signal delivery by suppressing radiation leakage and by using multiple resonances, respectively. A back-to-back (B2B) measurement was performed to validate the MWT design. It exhibited a return loss (RL) greater than 10 dB in the frequency range of 41-63 GHz, with an operating bandwidth of 42%. The proposed MWT exhibits good RL, low radiation loss, and broadband performances at mm-wave frequencies.
ISSN:2771-957X
2771-9588
DOI:10.1109/LMWT.2024.3361918