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New CBCPW‐to‐SIW transition with improved bandwidth
Author(s) -
Liu Zheng,
Xiao Gaobiao,
Xiang Shang
Publication year - 2014
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.28689
Subject(s) - microwave , coplanar waveguide , conductor , bandwidth (computing) , transformer , optoelectronics , fractional bandwidth , electrical impedance , materials science , computer science , electrical conductor , electronic engineering , electrical engineering , engineering , telecommunications , voltage , resonator , composite material
ABSTRACT In this article, a novel Ka band conductor‐backed coplanar waveguide to substrate integrated waveguide transition is presented. The new structure integrates the classical current probe transition with asymmetrical stepped impedance transformer to improve the operating bandwidth. An equivalent circuit model is also given, which clearly illustrates the operational principle of this new transition. Finally, a back‐to‐back transition has been simulated and fabricated. The experimental results show that the transition has a satisfactory performance in the whole Ka band. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2731–2734, 2014