Design of a novel microstrip lowpass filter for UWB chipless RFID readers

Author

Yang, Yang ; Zhu, Xi ; Karmakar, Nemai C.

Author_Institution

Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Melbourne, VIC, Australia

fYear

2011

Firstpage

98

Lastpage

101

Abstract

UWB chipless RFID receivers require compact and low cost integration solutions aiming at improving the signal integrity. A wide stopband, high selectivity and compact microstrip lowpass filter (LPF) is therefore needed. A combination of compact microstrip resonant cells (CMRCs) and uniquely shaped defect ground structures (DGS) are used in present LPF design to optimize the filter performances. The stopband with an attenuation level lower than 20 dB is obtained from 3.1 GHz up to 20 GHz. Both simulated and measured results are presented, showing a good agreement between simulation and measurement.

Keywords

low-pass filters; microstrip filters; microwave filters; radio receivers; radiofrequency identification; CMRC; DGS; UWB chipless RFID readers; UWB chipless RFID receivers; compact LPF; compact microstrip lowpass filter; compact microstrip resonant cells; defect ground structures; frequency 3.1 GHz to 20 GHz; Filtering theory; Loss measurement; Low pass filters; Microstrip; Microstrip filters; Microwave filters; Resonator filters; Compact microstrip resonant cells (CMRCs); defected ground structures (DGS); harmonic suppression; lowpass filter; microstrip filter; stepped impedance resonator (SIR); wide stopband;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings (APMC), 2011 Asia-Pacific

Conference_Location

Melbourne, VIC

Print_ISBN

978-1-4577-2034-5

Type

conf

Filename

6173695