Title :
Resonator and bandpass filter using CRLH transmission line based on microstrip-coplanar-waveguide structure
Author :
Mingming, Sun ; Weiping, Qin ; Haimeng, Wang ; Dong, Chen
Author_Institution :
Coll. of Commun. & Inf. Eng., Nanjing Univ. of Posts & Telecommun., Nanjing
Abstract :
A novel miniaturized resonator and bandpass filter configuration that employs dual-plane (microstrip/coplanar waveguide structure) composite right/left-handed transmission line (CRLH-TL) are proposed. The series capacitance of CRLH-TL unit cell is realized by metal-insulator-metal (MIM) capacitor implemented by the parallel microstrip lines on the upper layer of the substrate and the CPW on the ground plane. The shunt inductance of unit cell is provided by a shorted meander line stub on the lower metal layer. It is via-free and low-loss. In comparison with the conventional CRLH-TL resonator, the proposed resonator offers 3 times size reduction.
Keywords :
MIM devices; band-pass filters; coplanar waveguides; metamaterials; microstrip lines; microwave filters; resonator filters; transmission lines; CRLH transmission line; MIM capacitor; bandpass filter; composite right/left-handed transmission line; metal-insulator-metal capacitor; microstrip-coplanar-waveguide structure; parallel microstrip lines; resonator filter; shunt inductance; Band pass filters; Capacitance; Coplanar transmission lines; Coplanar waveguides; Inductance; MIM capacitors; Metal-insulator structures; Microstrip filters; Microstrip resonators; Transmission lines;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1879-4
Electronic_ISBN :
978-1-4244-1880-0
DOI :
10.1109/ICMMT.2008.4540757
