Title :
Direct-coupled resonator filters with improved selectivity
Author :
Easter, B. ; Powell, K.J.
Author_Institution :
University College of North Wales, School of Engineering Science, Bangor, UK
Abstract :
A method is outlined whereby a narrow-band direct-coupled resonator filter may be derived from an elliptic-function low-pass prototype. The construction and performance of a three-resonator waveguide cavity filter designed on this basis is described.
Keywords :
microwave filters;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19680326
