Novel Designs of Slot Array Antenna for 100 GHz Applications Using Gap Waveguide Technology
Doktorsavhandling, 2025
Waveguide slot array antennas, owing to their low loss, high mechanical strength, and robust power-handling capabilities, present a promising solution at 100 GHz. In addition, recent advancements in gap waveguide (GWG) technology have made it easier to fabricate slot arrays at high frequencies. Building upon the traditional slot array designs and incorporating GWG, this thesis proposes two novel slot array configurations to improve antenna performance in multiple aspects.
First, a wide-scanning slot array at 100 GHz based on GWG is introduced. By leveraging a novel decoupling technique, the proposed design enables an all-metal longitudinal slot array to achieve ±60° wide-angle scanning in the E-plane for the first time, with a 3-dB scan loss and a total efficiency exceeding 91%. Second, a dual-band filtering slot array based on GWG is presented, operating at 74–78 GHz and 102–106 GHz. The main novelty of this design lies in its common waveguide channels for dual-band slot excitation and a truly shared planar aperture, enabling both broadside radiation and independent multi-channel operation.
These proposed designs provide new insights into slot array antenna design and show promising potential for future applications in 100 GHz communication systems.
dual-band
decoupling
Slot array
gap waveguide
wide scanning
phased array
filter
Författare
Mu Fang
Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk
1-Dimensional Wide Scanning Gap Waveguide Based Slot Array Antenna using Decoupling Technique for 100 GHz Applications
IEEE Transactions on Antennas and Propagation,;Vol. 72(2024)p. 3438-3450
Artikel i vetenskaplig tidskrift
A Comparative Study of Decoupling Techniques for Waveguide Slot Array Antennas
18th European Conference on Antennas and Propagation, EuCAP 2024,;(2024)
Paper i proceeding
Dual-Band Filtering Slot Array Antenna for W-Band Application
W-Band Filtering Antenna Based on a Slot Array and Stacked Coupled Resonators Using Gap Waveguide Technology
IEEE Antennas and Wireless Propagation Letters,;Vol. 23(2024)p. 2546-2550
Artikel i vetenskaplig tidskrift
Eureka CELTIC: Energy-Efficient Radio Systems at 100 GHz and beyond: Antennas, Transceivers and Waveforms
VINNOVA (2020-02889), 2021-01-01 -- 2024-02-07.
Styrkeområden
Informations- och kommunikationsteknik
Drivkrafter
Hållbar utveckling
Innovation och entreprenörskap
Ämneskategorier (SSIF 2025)
Kommunikationssystem
ISBN
978-91-8103-178-2
Doktorsavhandlingar vid Chalmers tekniska högskola. Ny serie: 5636
Utgivare
Chalmers
ED, EDIT building, Hörsalsvägen, Chalmers
Opponent: Prof. Yi Wang, University of Birmingham, United Kingdom.