Title :
An improved modal expansion method for two cascaded junctions and its application to waveguide filters
Author :
Shen, Zhongxiang ; Macphie, Robert H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
fDate :
12/1/1995 12:00:00 AM
Abstract :
An improved modal expansion method is described for the scattering matrix of a cascaded network which consists of an enlargement junction combined with a reduction junction. The new method can significantly reduce computation time and requirement of computer memory. Application to iris coupled waveguide cavity filters is demonstrated. Numerical results for a rectangular waveguide cavity filter are given
Keywords :
S-matrix theory; cascade networks; waveguide discontinuities; waveguide filters; waveguide theory; cascaded network; enlargement junction; iris coupled waveguide cavity filter; modal expansion; rectangular waveguide cavity filter; reduction junction; scattering matrix; Application software; Circuits; Electromagnetic scattering; Electromagnetic waveguides; Filters; Iris; Rectangular waveguides; Transmission line matrix methods; Waveguide discontinuities; Waveguide junctions;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
