Title :
CAD-oriented fullwave equivalent circuit models for waveguide components and circuits
Author :
Weisshaar, Andreas ; Mongiardo, Mauro ; Tripathi, Alok ; Tripathi, Vijai K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
fDate :
12/1/1996 12:00:00 AM
Abstract :
New multimode equivalent circuit models for single and cascaded E-plane and H-plane step discontinuities in rectangular waveguides are presented. The computer-aided design (CAD)-oriented equivalent circuit models enable rigorous and efficient fullwave analysis of waveguide components and circuits entirely by circuit simulation. The method has been implemented on the microwave circuit simulator Libra and applied to waveguide structures containing single and cascaded irises and stub discontinuities. Comparisons of circuit simulation results for single and cascaded inductive irises as well as a single and three E-plane stubs with the standard mode-matching method show perfect agreement. Results of a Ka-band bandpass filter analysis are in good agreement with a mode-matching solution that includes the correct edge condition
Keywords :
CAD; circuit analysis computing; electrical engineering computing; equivalent circuits; rectangular waveguides; waveguide components; waveguide discontinuities; waveguide theory; CAD-oriented circuit models; E-plane step discontinuities; H-plane step discontinuities; Ka-band bandpass filter analysis; Libra; cascaded irises; circuit simulation; computer-aided design; edge condition; fullwave analysis; fullwave equivalent circuit models; inductive irises; microwave circuit simulator; mode-matching method; multimode equivalent circuit models; rectangular waveguides; stub discontinuities; waveguide circuits; waveguide components; Circuit simulation; Computational modeling; Design automation; Equivalent circuits; Microwave circuits; Microwave theory and techniques; Mode matching methods; Rectangular waveguides; Waveguide components; Waveguide discontinuities;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
