Design and Fabrication of a High Gain 60-GHz Cavity-backed Slot Antenna Array fed by Inverted Microstrip Gap Waveguide
Journal article, 2017
This paper deals with the design of a 16x16 slot array antenna fed by inverted microstrip gap waveguide (IMGW). The whole structure designed in this work consists of radiating slots, a groove gap cavity layer, a distribution feeding network and a transition from standard WR-15 waveguide to the IMGW. Firstly, a 2x2 cavity-backed slot sub-array is designed with periodic boundary condition to achieve good performances of radiation pattern and directivity. Then a complete IMGW feeding network with a transition from WR-15 rectangular waveguide to the IMGW has been realized to excite the radiating slots. The complete antenna array is designed at 60-GHz frequency band and fabricated using Electrical Discharging Machining (EDM)technology. The measurements show that the antenna has a 16.95% bandwidth covering 54-64 GHz frequency range. The measured gain of the antenna is more than 28 dBi with the efficiency higher than 40% covering 54-64 GHz frequency range.
corporate-feed networks based on inverted microstrip gap waveguide (IMGW)
60-GHz frequency band
slot array antenna.
cavity-backed groove gap waveguide
Author
Jinlin Liu
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Abbas Vosoogh
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Ashraf Uz Zaman
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Jian Yang
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
IEEE Transactions on Antennas and Propagation
0018926x (ISSN) 15582221 (eISSN)
Vol. 65 4 2117-2122 7857735Areas of Advance
Information and Communication Technology
Subject Categories
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/TAP.2017.2670509