Summary
International Symposium on Antennas and Propagation
2005
Session Number:2D1
Session:
Number:2D1-2
A NOVEL MICROSTRIP-TO-WAVEGUIDE TRANSITION USING ELECTROMAGNETIC BANDGAP STRUCTURE
Yukihiro Tahara, Araki Ohno, Hideyuki Oh-hashi, Shigeru Makino, Masayoshi Ono, Tetsuya Ohba,
pp.-
Publication Date:2005/11/3
Online ISSN:2188-5079
Summary:
A novel microstrip-to-waveguide transition using mushroom-like electromagnetic bandgap (EBG) structure is proposed. The transition consists of a waveguide terminated with a mushroom-like EBG structure fabricated on a conductor-backed dielectric substrate and a strip probe inserted into the waveguide. The mushroom-like EBG structure can replace a quarter-wavelength waveguide back-short used in the conventional probe-type transitions. The transition has been designed on a single layered dielectric substrate by placing the EBG patches and the strip probe on the same surface of the substrate. The fabricated microstrip-to-waveguide transition has achieved a good performance with return loss greater than 15 dB over a bandwidth of 5% in the Ka-band.