Title :
Novel coupling schemes for microwave resonator filters
Author :
Rosenberg, U. ; Amari, S.
Author_Institution :
Marconi Commun. GmbH, Backnang, Germany
Abstract :
The paper presents novel coupling schemes for microwave resonator filters. Some of these solutions contain more than one main path between the input and output. These paths may be interacting or non-interacting. In other solutions, only some of the direct (main) couplings are zero. It is shown that higher-order filter characteristics can be obtained from lower-order sections, which are connected in parallel between the source and the load, by proper superposition of the individual lower-order responses. Possible applications of these solution to actual design problems are discussed.
Keywords :
band-pass filters; cavity resonator filters; coupled circuits; elliptic filters; linear network synthesis; microwave filters; poles and zeros; N-path filters; band-pass filters; coupling schemes; design problems; dual-mode filters; elliptic filters; filter synthesis; higher-order filter characteristics; interacting paths; microwave resonator filters; noninteracting paths; parallel connection; transmission zeros; Band pass filters; Bandwidth; Couplings; Delay; Filtering theory; Frequency synthesizers; Helium; Microwave filters; Modems; Resonator filters;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1012164
