Title :
A Novel Compact Microstrip Bandstop Filter Based on Spiral Resonators
Author :
Lim, Ho ; Lee, Jong-Hyuk ; Lim, Sang-Ho ; Shin, Dong-Hoon ; Myung, Noh-Hoon
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
A novel compact microstrip bandstop filter using spiral resonators (SRs) is proposed. An array of SRs topology which is etched on the center line has stopband characteristics. And this microstrip bandstop filter can be implemented with very small size because of the sub-wavelength effect of SRs. The 3-cell SR filter is fabricated and verified by measurements. We have obtained low insertion loss in the passband and high rejection level in the stopband with steep cutoff. This novel structure is easy to fabricate and is a promising structure that is compatible with MMIC or PCB process.
Keywords :
band-stop filters; microstrip filters; resonators; compact microstrip bandstop filter; spiral resonator; Band pass filters; Etching; Insertion loss; Microstrip filters; Microstrip resonators; Passband; Resonator filters; Spirals; Strontium; Topology; Spiral resonators; bandstop filter; microstrip filter;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4554774
