Title :
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
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;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
