Flexible Ultra-Thin Strip-on-Substrate Coaxial Gap Waveguide Technology for Millimeter-Wave
Artikel i vetenskaplig tidskrift, 2025

This paper presents Strip-on-Substrate Coaxial Gap Waveguide (SCGW) technology, a novel transmission line for millimeter-wave applications. Its key distinction is an open coaxial structure requiring no electrical contact for the outer conductor. To suppress wave leakage, an electromagnetic bandgap structure - formed by vertically stacked metal pin-bed sheets and a substrate sheet - serves as the outer conductor, encapsulating the strip -type inner conductor. Several fabricated prototypes show that in the 76-81 GHz range, reflection coefficients are better than -10 dB, with transmission losses of 0.25-0.32 dB/cm for single-sided-strip SCGW and 0.18-0.26 dB/cm for double-sided-strip SCGW, confirming the potential of the design for mmWave applications.

low loss

strip-on-substrate

millimeter wave

Coaxial gap waveguide

electromagnetic band gap

Författare

Enlin Wang

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Nanjing University of Aeronautics and Astronautics

Abbas Vosoogh

Gapwaves AB

Carlo Bencivenni

Gapwaves AB

Sadegh Mansouri Moghaddam

Gapwaves AB

Jian Yang

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

IEEE Antennas and Wireless Propagation Letters

1536-1225 (ISSN) 15485757 (eISSN)

Vol. In Press

Ämneskategorier (SSIF 2025)

Annan elektroteknik och elektronik

DOI

10.1109/LAWP.2025.3620407

Mer information

Senast uppdaterat

2025-10-21