Title :
Mode-matching analysis of TE011-mode waveguide bandpass filters
Author :
Melloni, Andrea ; Politi, Marco ; Guido Gentili, G.
Author_Institution :
Dipartimento di Elettronica a Informazione, Politecnico di Milano, Italy
fDate :
9/1/1995 12:00:00 AM
Abstract :
A mode-matching technique for the analysis of waveguide bandpass filters employing circular TE011 resonators, coupled by rectangular apertures, is presented. Such a technique takes rigorously into account thickness and angular offset of the two coupling irises, and higher modes interactions between resonators, while overcoming the typical limitations of the available approximate models. We show, through an optimization procedure, that it is possible to design filters with a desired frequency response, without needing any further empiric adjustments. Spurious responses can be controlled too
Keywords :
band-pass filters; cavity resonators; convergence; frequency response; millimetre wave filters; mode matching; optimisation; passive filters; resonator filters; waveguide filters; TE011-mode; angular offset; circular TE011 resonators; coupling irises; frequency response; higher modes interactions; mode-matching technique; optimization procedure; rectangular apertures; spurious response control; waveguide bandpass filters; Apertures; Band pass filters; Design optimization; Frequency response; Helium; Millimeter wave technology; Narrowband; Resonator filters; Tellurium; Waveguide discontinuities;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
