Title :
Compact ridged waveguide filters with improved stopband performance
Author :
Goussetis, G. ; Budimir, D.
Author_Institution :
Wireless Commun. Res. Group, Westminster Univ., London, UK
Abstract :
A novel ridged waveguide bandpass filter configuration is proposed. The proposed filter has comparable size to standard E-plane filters while having suppressed spurious resonance. Compactness is achieved by taking advantage of the properties of slow waves in half wavelength resonators, while spurious behaviour suppression is achieved by means of an integrated lowpass structure. Periodicity is readily imposed by cascading ridge waveguides with rectangular waveguides. The structure is simple and compatible with E-plane technology. Numerical and experimental results are presented to validate the argument.
Keywords :
band-pass filters; cavity resonator filters; low-pass filters; periodic structures; resonance; ridge waveguides; slow wave structures; waveguide filters; E-plane filters; bandpass filters; compact ridged waveguide filters; filter stopband performance; half wavelength resonators; integrated lowpass structures; periodic structures; rectangular waveguides; slow wave effects; spurious resonance suppression; Band pass filters; Dispersion; Microwave filters; Passband; Periodic structures; Rectangular waveguides; Resonance; Resonator filters; Waveguide components; Waveguide discontinuities;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1212527
