Title :
Rigorous modal S-matrix analysis of the cross-iris in rectangular waveguides
Author :
Ihmels, Ralf ; Arndt, Fritz
Author_Institution :
Microwave Dept., Bremen Univ., Germany
Abstract :
A rigorous field theory analysis is presented for cross-irises in rectangular waveguides, as well as for cross-iris coupled rectangular waveguide resonators. Arbitrary iris location, unequal E-and H-plane cross size and finite thickness are rigorously taken into account. The scattering parameters of a cross-iris coupled one-resonator filter in the waveguide Ku-band (12-18 GHz) are presented as a calculation example. The theory is verified by comparison with available data for cut-off frequencies, as well as with measurements.<>
Keywords :
S-matrix theory; S-parameters; microwave filters; rectangular waveguides; resonators; waveguide components; waveguide theory; 12 to 18 GHz; Ku-band; SHF; cross-iris; field theory analysis; modal S-matrix analysis; one-resonator filter; rectangular waveguides; scattering parameters; waveguide resonators; Electromagnetic scattering; Electromagnetic waveguides; Filters; Iris; Magnetic separation; Rectangular waveguides; Transmission line matrix methods; Waveguide discontinuities; Waveguide junctions; Waveguide theory;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
