Title :
Spectral approach to the synthesis of bandstop filters
Author :
Kirilenko, Anatoly A. ; Rud, L.A. ; Senkevich, Sergei L.
Author_Institution :
Inst. of Radio Phys. & Electron., Kharkov, Ukraine
fDate :
7/1/1994 12:00:00 AM
Abstract :
A nontraditional approach to the synthesis of bandstop filters (BSF) based on the analysis of the spectrum of complex eigenfrequencies of multimode resonators forming a filter is described. Two types of BSF resonators, which are formed by cross-section enlargements of a finite length of a rectangular waveguide in E- or H-plane, are considered. It was shown that a BSF of the first type had no spurious stopbands and practically did not introduce a loss in the passband. The high accuracy of the filter design is confirmed by the experimental data
Keywords :
band-stop filters; cavity resonators; eigenvalues and eigenfunctions; microwave filters; rectangular waveguides; BSF resonators; E-plane; H-plane; bandstop filters; complex eigenfrequencies; cross-section enlargements; filter design; mm-wave filters; multimode resonators; rectangular waveguide; Circuit synthesis; Frequency; Manufacturing; Prototypes; Q factor; Rectangular waveguides; Reflection; Resonator filters; Scattering; Transmission line matrix methods;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
