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A broadband perpendicular E ‐plane waveguide‐to‐suspended stripline transition
Author(s) -
Nikravan M. A.,
Kwon D.H.
Publication year - 2016
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29922
Subject(s) - stripline , return loss , resonator , broadband , microwave , fractional bandwidth , perpendicular , materials science , insertion loss , bandwidth (computing) , microstrip , optoelectronics , ku band , dielectric , optics , electrical engineering , telecommunications , physics , engineering , geometry , mathematics , antenna (radio)
A perpendicular E ‐plane transition between rectangular waveguide (WG) and suspended stripline (SSL) in the Ku‐band is presented. The topology of coupling network is studied and design guidelines are provided. A 10‐dB return loss bandwidth (BW) of 12% was obtained using a patch resonator on a double‐sided single‐layer dielectric substrate combined with a cavity behind the resonator of a very shallow depth as low as 1 mm for a compact design. An insertion loss of 0.18 dB at 13.8 GHz was achieved in the measurement of a back‐to‐back SSL–WG–SSL transition. Comparison of the measured performances with the state‐of‐the‐art WG transitions to SSL shows a 1.5 times improvement in frequency bandwidth and a three times reduction in electrical dimensions. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1831–1834, 2016