Title :
A compact microstrip step-impedance low-pass filter (SILPF) using complementary split ring resonators (CSRRs)
Author :
Casanueva, A. ; León, A. ; González, O. ; Mediavilla, A.
Author_Institution :
Dpto. Ing. de Comun., Univ. de Cantabria, Santander, Spain
Abstract :
A new topology for the design of microstrip low pass filters (LPF) with a wide stopband, low insertion loss, and sharp rejection is proposed in this paper. This filter is especially relevant for wireless sensing, local positioning, and RFID. In this contribution, the concept of complementary split ring resonators (CSRRs) is utilized to improve the selectivity of a microwave low pass filter. To this end, a step-impedance low-pass filter (SILPF) with CSRR is first analyzed and then built. Properties of these configurations are discussed, and two manufactured prototypes have been successfully tested. The results show the usefulness and validity of the new structures with high rejection capabilities.
Keywords :
low-pass filters; microstrip filters; microwave filters; resonator filters; CSRR; RFID; SILPF; complementary split ring resonator; insertion loss; local positioning; microstrip step-impedance low-pass filter design; microwave low pass filter; sharp rejection; wireless sensing; Insertion loss; Low pass filters; Microstrip filters; Microstrip resonators; Microwave filters; Optical ring resonators; Radiofrequency identification; Resonator filters; Topology; Wireless sensor networks; Complementary split ring resonators (CSRRs); Low pass filters; RF planar circuits;
Conference_Titel :
Wireless Sensing, Local Positioning, and RFID, 2009. IMWS 2009. IEEE MTT-S International Microwave Workshop on
Conference_Location :
Cavtat
Print_ISBN :
978-1-4244-5060-2
Electronic_ISBN :
978-1-4244-5062-6
DOI :
10.1109/IMWS2.2009.5307862
