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Fully micromachined W-band rectangular waveguide to grounded coplanar waveguide transition

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7 Author(s)
Aliakbarian, H. ; Electr. Eng. Dept. (ESAT), Katholieke Univ. Leuven, Heverlee, Belgium ; Radiom, S. ; Tavakol, V. ; Reynaert, P.
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This study presents a novel grounded coplanar waveguide (CPW) to fundamental rectangular waveguide mode transition for W-band applications. The designed waveguide-to-CPW transition is optimised to achieve low-loss. The maximum insertion loss of the waveguide-to-CPW back-to-back transition is -1.8-dB in a frequency range of 91.2-113.2-GHz, corresponding to a large 22- bandwidth. Since the structure benefits from a simple topology and in order to demonstrate the claims, it is fabricated in-house. The measurement results are presented and are in very good agreement with the simulations.

Published in:

Microwaves, Antennas & Propagation, IET  (Volume:6 ,  Issue: 5 )