A new method for synthesizing nonredundant low-pass elliptic filters in a microstrip configuration is presented. The realization consists of the cascade connection of proper rectangular elements, each one corresponding to four reactive elements of the lumped-constant prototype. This allows an effective control of parasitics and unwanted reactances which results in the possibility of realizing higher order filters with cutoff frequencies up to x-band. fifth- and seventh-orderfilters were fabricated on alumina substrates showing very good performance, particularly in the passband.
Giannini, F., Salerno, M., Sorrentino, R. (1982). Design of Low-Pass Elliptic Filters by Means of Cascaded Microstrip Rectangular Elements. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 30(9), 1348-1353 [10.1109/TMTT.1982.1131259].
Design of Low-Pass Elliptic Filters by Means of Cascaded Microstrip Rectangular Elements
GIANNINI, FRANCO;SALERNO, MARIO;SORRENTINO, ROBERTO
1982-01-01
Abstract
A new method for synthesizing nonredundant low-pass elliptic filters in a microstrip configuration is presented. The realization consists of the cascade connection of proper rectangular elements, each one corresponding to four reactive elements of the lumped-constant prototype. This allows an effective control of parasitics and unwanted reactances which results in the possibility of realizing higher order filters with cutoff frequencies up to x-band. fifth- and seventh-orderfilters were fabricated on alumina substrates showing very good performance, particularly in the passband.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
