Title :
An original topology of dual-band filter with transmission zeros
Author :
Quendo, C. ; Rius, E. ; Person, C.
Author_Institution :
CNRS, Lab. d´Electronique et des Systemes de Telecommun. (L.E.S.T), Brest, France
Abstract :
This paper reports on a new topology of high-performance dual-band filters. This topology is derived from the Dual Behavior Resonator (DBR) filter. The resulting resonator is directly dual-band. It allows the control of two bandpasses separated by a transmission zero to ensure a high rejection level between them. Moreover, two other transmission zeros are located on either side of the two bandpasses. The possibilities offered by this structure are discussed and measurements are presented to validate the method.
Keywords :
band-pass filters; band-stop filters; microstrip filters; network topology; poles and zeros; resonator filters; bandpass control; bandstop structures; directly dual-band resonator; dual behavior resonator filter; filter topology; high rejection level; high-performance dual-band filters; microstrip technology; transmission zeros; Antenna measurements; Distributed Bragg reflectors; Dual band; Equations; Filtering theory; Frequency; Impedance; Resonator filters; Topology; Wideband;
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.2003.1212559
