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Dielectric rod waveguide antenna for W band with good input match

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4 Author(s)
Lioubtchenko, D.V. ; MilliLab., Helsinki Univ. of Technol., Finland ; Dudorov, S.N. ; Mallat, J.A. ; Raisanen, A.V.

Antennas based on dielectric rod waveguide made of GaAs and fused sapphire cut along its optical axis inserted in the end of a standard WR-10 metal waveguide are investigated with computer simulations and experiments in the W band. The radiation pattern is found to be similar to that of the open metal waveguide end, but less frequency-dependent beamwidth and input match: measured return loss is more than 25 dB.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:15 ,  Issue: 1 )