Differential dual-band impedance inverter with common mode suppression based on composite right/left handed (CRLH) transmission lines

Author

Velez, Paris ; Duran-Sindreu, Miguel ; Bonache, Jordi ; Martin, F.

Author_Institution

GEMMA/CIMITEC Dept. d´Eng. Electron., Univ. Autonoma de Barcelona, Bellaterra, Spain

fYear

2013

fDate

16-21 Sept. 2013

Firstpage

52

Lastpage

54

Abstract

In this work, a differential dual-band impedance inverter with common mode rejection operating at f₁=1.8GHz (GSM band) and f₂=2.4GHz (ISM band) is presented. The designed impedance inverter is based on a Π-type differential composite right/left handed (CRLH) transmission line implemented in microstrip technology through semi-lumped resonators; that is, stepped impedance resonators (SIRs) for the shunt branch, and interdigital capacitors series connected to inductive strips for the series branch. The device exhibits its functionality at the design frequencies, with a common mode rejection ratio (CMRR) better than 35dB. The total occupied area of the common mode suppressed differential dual-band impedance inverter is 0.37λ×0.27λ (where λ is the guided wavelength at f₁).

Keywords

electric impedance; micro-optics; microstrip lines; optical design techniques; optical metamaterials; optical resonators; optical waveguides; transmission lines; GSM band; ISM band; common mode rejection ratio; composite left handed transmission lines; composite right handed transmission lines; differential dual-band impedance inverter design; frequency 1.8 GHz; frequency 2.4 GHz; interdigital capacitor series; microstrip technology; mode suppression; semilumped resonators; shunt branch; stepped impedance resonators; Band-pass filters; Dual band; Impedance; Inverters; Optical resonators; Power transmission lines; Resonant frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2013 7th International Congress on

Conference_Location

Talence

Print_ISBN

978-1-4799-1229-2

Type

conf

DOI

10.1109/MetaMaterials.2013.6808950

Filename

6808950