A 50 dBi E-Band Dual-reflector Antenna for 5G Backhauling with Auto-beam-tracking Function
Journal article, 2024
An ultra-high-gain E-band dual-reflector antenna for 5G backhaul with beam tracking function is proposed in this paper. Beam tracking is achieved by defocussing the feed away from the focus point of the sub-reflector, while keeping the interface with the transmit-receive unit stationary by applying a movable gap-waveguide configuration. The antenna has been prototyped and measured. The measured reflection coefficients remain below –10 dB for both horizontal and vertical polarizations over 71 – 86 GHz, almost independent from the offset positions of the feed. The measured radiation patterns agree well with the simulated ones, with a peak gain of about 50 dBi in the band and less than 1 dB gain drop for beam steering within ±2°. Finally, a low-cost and environmentally friendly mechanical tracking system is proposed, prototyped, and tested. Measurements have verified that the tracking system functions well for slow sways.
Gravity-driven system
Beam steering
Ultra-high gain
Beam tracking
Directive antennas
Reflector antennas
UHF antennas
Gap waveguide
Mast sway
Gain
5G backhaul
Millimeter wave communication
Mechanical movement
Antenna feeds
Author
Enlin Wang
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Sam Agneessens
Ericsson
Oskar Talcoth
Ericsson
L. Manholm
Ericsson
Carlo Bencivenni
Gapwaves AB
Esperanza Alfonso Alos
Gapwaves AB
Anders Wennergren
Gapwaves AB
Henrik Stalrud
Gapwaves AB
Ashraf Uz Zaman
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Jian Yang
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
IEEE Transactions on Antennas and Propagation
0018-926X (ISSN) 1558-2221 (eISSN)
Vol. 72 6 4874-4887Subject Categories
Telecommunications
Signal Processing
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/TAP.2024.3395971