1-Dimensional Wide Scanning Gap Waveguide Based Slot Array Antenna using Decoupling Technique for 100 GHz Applications
Journal article, 2024
This paper presents a 1-dimenional wide scanning slot array antenna based on ridge gap waveguide (RGW), operating at a 100 GHz band. A novel half wall decoupling structure is proposed to reduce the mutual coupling and the reflection coefficient simultaneously, thus achieving a more stable active reflection coefficient (ARC) within the ±60° scanning range. At the same time, special attention has been given in retaining the embedded pattern suitable for wide scanning performance. An 8-element slot array antenna (8×8 slots) with two different feeding networks is fabricated and measured to verify the scanning performance. The prototype achieves 91% total efficiency while scanned up to 60° with 3 dB scanning loss. The measured results show good agreement with the simulations both for the reflection coefficient and radiation performance.
gap waveguide
Slot antennas
phased array antenna
wide scanning
Mutual coupling
Phased arrays
Antenna arrays
slot antenna
Pins
Electromagnetic waveguides
decoupling
Reflection
Author
Mu Fang
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Jian Yang
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Thomas Emanuelsson
Ericsson
Ingmar Andersson
Ericsson
Ashraf Uz Zaman
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
IEEE Transactions on Antennas and Propagation
0018-926X (ISSN) 1558-2221 (eISSN)
Vol. 72 4 3438-3450Subject Categories
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/TAP.2024.3372147