Title :
Optimized E-plane bandpass filters with improved stopband performance
Author :
Budimir, Djuradj
Author_Institution :
Dept. of Electron. & Electr. Eng., King´´s Coll., London, UK
fDate :
2/1/1997 12:00:00 AM
Abstract :
A computer-aided synthesis technique for E-plane bandpass filters with improved stopband performance is developed. An optimization procedure based on equal ripple optimization is adopted. The design of a symmetrical E-plane bandpass filter with improved stopband performance is considered; higher order mode interaction between E-plane discontinuities is included in the design. The predicted filter performance shows improved stopband performance and reduced filter dimensions compared with conventional E-plane bandpass filters. The validity of the method is confirmed by the measurement of a fabricated five resonator E-plane bandpass filter with improved stopband performance
Keywords :
band-pass filters; circuit CAD; circuit optimisation; microwave filters; resonator filters; waveguide discontinuities; waveguide filters; E-plane bandpass filters; E-plane discontinuities; computer-aided synthesis technique; equal ripple optimization; five resonator E-plane bandpass filter; higher order mode interaction; microwave filter; optimization procedure; rectangular waveguide sections; reduced filter dimensions; stopband performance; symmetrical E-plane bandpass filter design; Attenuation; Band pass filters; Costs; Cutoff frequency; Millimeter wave measurements; Millimeter wave technology; Passband; Rectangular waveguides; Resonance; Resonator filters;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
