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Ka-Band Rectangular Waveguide to Suspended Stripline Transition

Glogowski, R. ; Zürcher, J.-F. ; Peixeiro, C. ; Mosig , J.

IEEE Microwave and Wireless Components Letters Vol. 13, Nº 11, pp. 575 - 577, November, 2013.

ISSN (print): 1531-1309
ISSN (online): 1531-1309

Scimago Journal Ranking: 1,40 (in 2013)

Digital Object Identifier: 10.1109/LMWC.2013.2281408

Abstract
A Ka-band transition between a rectangular waveguide and a suspended stripline (SSL) is proposed. It uses a configuration in which the SSL substrate is perpendicular to the waveguide
main axis. A patch printed on the SSL substrate is used to
match the characteristic impedance of the waveguide. A set of formulas to facilitate the design of the element is presented. A prototype of the transition was fabricated and the experimental results agree well with the simulations. The proposed element can have the input matching below dB in a 13% bandwidth while maintaining the insertion loss below 0.22 dB.