Millimeter wave contactless microstrip-gap waveguide transition suitable for integration of RF MMIC with gap waveguide array antenna
Paper in proceedings, 2017

A new simple transition from a microstrip to gap waveguides has been proposed in this paper. The transition has been implemented for ridge gap waveguide and a groove gap waveguide. The cavity coupling is used to couple the waves between the microstrip and the gap waveguides. This cavity acts as a backshort in the transition region and the microstrip lies inside the waveguide, which provides a solution to integration of RF MMIC circuits with the feed-network of the gap waveguide array antenna. Roger 3010 (ϵr = 10.2) was used as the microstrip substrate for these transitions. The optimised back-to-back Ridge Gap Waveguide (RGW)-microstrip transition shows relative bandwidth of 21% for S11 < -20 dB and Groove Gap Waveguide (GGW)-microstrip transition shows relative bandwidth of 20% for S11 < -17 dB. The insertion losses are better than 0.5 dB in the designed frequency bands for both the RGW and GGW transitions.

Author

Uttam Nandi

Ashraf Uz Zaman

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

Abbas Vosoogh

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

Jian Yang

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

2017 11th European Conference on Antennas and Propagation, EUCAP 2017

1682-1684 7928690

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.23919/EuCAP.2017.7928690

ISBN

978-889070187-0

More information

Latest update

7/6/2018 3