Title :
Design of a dual-band active filter using CRLH structures
Author :
Perez, Oscar Garcia ; Herraiz, Javier ; Posadas, Vicente Gonzalez ; Vargas, Daniel Segovia
Author_Institution :
Dipt. de Teor. de la Senal y Comun., Univ. Carlos III de Madrid, Leganes
Abstract :
In this paper, the use of ´composite right/left handed´ (CRLH) devices in a first-order recursive active filter topology is proposed. The intention of the design with these CRLH devices is to obtain a circuit with a dual-band filtering behaviour at two arbitrary frequencies. Dual-band CRLH branch-lines in the input and output ports allow obtaining well input/output matching. On the other hand, a CRLH feedback transmission line is used to compensate the phase of the amplifier at the two operating filter frequencies.
Keywords :
active filters; amplifiers; network topology; recursive filters; transmission lines; amplifier; composite right/left handed device; dual-band CRLH branch-line; dual-band active filter design; feedback transmission line; first-order recursive active filter topology; Active filters; Circuit topology; Digital filters; Distributed parameter circuits; Dual band; Feedback; Frequency; Microwave filters; Transfer functions; Transmission line theory;
Conference_Titel :
Applied Electromagnetics and Communications, 2007. ICECom 2007. 19th International Conference on
Conference_Location :
Dubrovnik
Print_ISBN :
978-953-6037-50-6
Electronic_ISBN :
978-953-6037-51-3
DOI :
10.1109/ICECOM.2007.4544444
