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

fYear

2007

fDate

24-26 Sept. 2007

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICECOM.2007.4544444

Filename

4544444