A new LC series element for compact bandpass filter design

Author

Martel, Jesús ; Marqués, Ricardo ; Falcone, Francisco ; Baena, Juan D. ; Medina, Francisco ; Martín, Ferran ; Sorolla, Mario

Author_Institution

Grupo de Microondas, Univ. de Sevilla, Spain

Volume

14

Issue

5

fYear

2004

fDate

5/1/2004 12:00:00 AM

Firstpage

210

Lastpage

212

Abstract

A new LC series element based on a modified version of the split rings resonator introduced in is proposed. Owing to its small electrical size, the new open split ring resonator (OSRR) is a very attractive element for compact bandpass filter design. As an example, we have designed and fabricated a filter to produce a bandpass around the resonance frequency of the employed OSRRs. The filter bandwidth is controlled by the length of the transmission lines connecting the OSRRs. Sharp and deep out-of-band rejection is achieved by cascading several OSRRs. Circuit theory and electromagnetic based simulations reasonably agree with experiments.

Keywords

band-pass filters; microstrip filters; resonator filters; LC series element; bandpass filter design; circuit theory; deep out-of-band rejection; electromagnetic based simulations; filter bandwidth control; resonance frequency; sharp rejection; small electrical size; split rings resonator; Band pass filters; Bandwidth; Circuit theory; Distributed parameter circuits; Joining processes; Optical ring resonators; Resonance; Resonant frequency; Resonator filters; Transmission line theory; Compact bandpass filters; split ring resonators;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2004.827836

Filename

1296663