A Compact Gap-Waveguide Dual-Polarized Ka-Band Feed for 50dBi Reflector Antennas With Tracking Function
Artikel i vetenskaplig tidskrift, 2022
A dual-polarized Ka-band feed based on gap waveguide (GW) technology for an ultra-high-gain reflector antenna is presented. The feed provides SUM-beams for data transfer and DIFF-beams for tracking. The whole reflector antenna is composed of the feed and a dual-reflector Cassegraine antenna. The feed has been prototyped, and the measured reflection coefficients for the horizontally and the vertically polarized SUM-beam ports are below -10 dB and -8 dB over 30.8-38 GHz, respectively. The measured feed radiation patterns agree well with the simulated ones. The dual-reflector Cassegraine antenna has been designed and simulated by using GRASP with the simulated far-field function of the proposed feed, showing that the reflector antenna achieves SUM-beam gains above 50 dBi and the null depth of the DIFF-beams are more than 30 dB below the maximum of SUM-beams.
Antenna measurements
Antenna feeds
Antenna radiation patterns
Dual-polarized feed
Gain measurement
gapwave planar magic-T
UHF antennas
ultra-high-gain antenna
Millimeter wave communication
Geometry
feed with tracking functions
Författare
Enlin Wang
Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk
Tianling Zhang
Xidian University
Ashraf Uz Zaman
Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk
Thomas Emanuelsson
Ericsson AB
Per-Arne Thorsen
Ericsson AB
Sam Agneessens
Ericsson AB
Jian Yang
Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk
IEEE Access
2169-3536 (ISSN) 21693536 (eISSN)
Vol. 10 91622-91630FRIEND: Full Realization of extremely-high-gain mmW 50dBi+ 70GHz+ Gregorian Antenna with a new Gapwaveguide feed
VINNOVA (2021-01354), 2021-07-01 -- 2023-06-30.
Ämneskategorier
Acceleratorfysik och instrumentering
Annan fysik
Signalbehandling
DOI
10.1109/ACCESS.2022.3202314