Millimeter-Wave Quasi-Optical Feeds for Linear Array Antennas in Gap Waveguide Technology
Paper in proceeding, 2022
A realization of the quasi-optical (QO) feed concept for linear millimeter-wave (sub-)array antennas is demonstrated in gap waveguide technology. The proposed feed architecture employs an input transition from a ridge gap waveguide (RGW) to a groove gap waveguide (GGW), a radial (H-plane sectoral) GGW section, and a transition to an output RGW array. A design decomposition approach is presented to reduce simulation complexity. Several 20-element QO feed implementations are investigated at W-band demonstrating a 20% relative bandwidth (85-105 GHz), 0.5 dB insertion loss, and a capability of an amplitude taper control within the 10-20 dB range.
metamaterials
quasi-optical feed
radial waveguide
gap waveg-uide
array antenna
Author
Artem Vilenskiy
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Yingqi Zhang
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Esme Galesloot
Eindhoven University of Technology
Adrianus Bart Smolders
Eindhoven University of Technology
Marianna Ivashina
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
2022 16th European Conference on Antennas and Propagation, EuCAP 2022
9788831299046 (ISBN)
16th European Conference on Antennas and Propagation, EuCAP 2022
Madrid, Spain,
Madrid, Spain,
MyWave - Efficient Millimetre-Wave Communications for mobile users
European Commission (EC) (EC/H2020/860023), 2019-10-01 -- 2023-09-30.
Subject Categories
Telecommunications
Signal Processing
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.23919/EuCAP53622.2022.9769175