Title :
CPW Band-Stop Filter with Tapered-Shaped Defected Ground Structure
Author :
Lee, Yi-Chieh ; Sun, Jwo-Shiun
Author_Institution :
Grad. Inst. of Comput. & Commun. Eng., Nat. Taipei Univ. of Technol., Taipei
Abstract :
A CPW band-stop filter that has a tapered-shaped defected ground structure (DGS) is demonstrated. The proposed band-stop filter includes symmetrical tapered-shaped DGS and a CPW-fed excitation to obtain two resonance frequency nulls and wider -lOdB operating bandwidth. By modifying tapered-shaped DGS structure and centre strip width (w), the operating bandwidth can be easily adjusted. The simulated and measured results show accepted S-parameters. On other designs, the multisections filters using tapered-shaped DGS structure and CPW filter with dual-tapered-shaped DGS are designed and experimented.
Keywords :
band-stop filters; coplanar waveguides; waveguide filters; CPW; band-stop filter; defected ground structure; resonance frequency; Bandwidth; Coplanar waveguides; Inductors; Low pass filters; Microwave filters; Microwave technology; Periodic structures; Resonance; Resonant frequency; Resonator filters; CPW; DGS; S-paramter; tapered-shaped;
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.2007.4554794
