A compact highly-selective filter inspired by Negative-Refractive-Index Transmission Lines

Author

Islam, Rubaiyat ; Eleftheriades, G.V.

Author_Institution

The Edward S. Rogers Sr. Dept. of Electrical and Computer Engineering, University of Toronto, ON, M5S 3G4, Canada

fYear

2008

fDate

15-20 June 2008

Firstpage

895

Lastpage

898

Abstract

A negative-refractive-index transmission-line (NRI-TL) inspired filter is realized by replacing the traditional shunt inductive loading with a series LC resonator to ground. Design equations for the filter are compared with full-wave simulations and experimental results are presented for a highly-selective folded implementation exhibiting 5% bandwidth at 2.03 GHz , 1 dB insertion-loss and a maximum band-edge slope of 2.15 dB/MHz.

Keywords

RLC circuits; UHF filters; cavity resonator filters; refractive index; transmission lines; frequency 2.03 GHz; full-wave simulations; highly-selective filters; highly-selective folded implementation; insertion-loss; loss 1 dB; maximum band-edge slope; negative-refractive-index transmission lines; series LC resonator; shunt inductive loading; Band pass filters; Filtering theory; Impedance; Inductors; Metamaterials; Power transmission lines; Resonator filters; Shunt (electrical); Transmission line theory; Transmission lines; Band-pass filter; Compact filter; Highly-selective filter; Negative-Refractive-Index Transmission-Line; Notch-Filter;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2008 IEEE MTT-S International

Conference_Location

Atlanta, GA

ISSN

0149-645X

Print_ISBN

978-1-4244-1780-3

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2008.4632977

Filename

4632977