Title :
Broadband bandstop filters using periodic fractal EBG structures on CPW transmission line
Author :
Huang, J.-M. ; Deng, Z.L. ; Zhang, Y.H.
Author_Institution :
Key Lab. of OCLT, Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
Band-stop filters (BSFs) are presented using novel designs of electromagnetic bandgap (EBG) structures and its improved structure with compact sizes on coplanar waveguide (CPW) transmission line. An equivalent lumped circuit is introduced to model the EBG unit cell. The BSFs are then designed by cascading EBG cells. Sharp selectivity and deep attenuation levels are shown on the stop band. It reveals a 20 dB stop band with a bandwidth of 2.3 GHz. The pass-band insertion loss is less than 0.6 dB.
Keywords :
UHF filters; band-stop filters; coplanar transmission lines; coplanar waveguide components; equivalent circuits; fractals; lumped parameter networks; photonic band gap; CPW transmission line; EBG unit cell design; bandwidth 2.3 GHz; broadband bandstop filter; coplanar waveguide transmission line; electromagnetic bandgap structure; equivalent lumped circuit; pass-band insertion loss; periodic fractal EBG structure; Attenuation; Coplanar transmission lines; Coplanar waveguides; Distributed parameter circuits; Electromagnetic waveguides; Filters; Fractals; Metamaterials; Periodic structures; Transmission lines;
Conference_Titel :
Design, Test, Integration & Packaging of MEMS/MOEMS, 2009. MEMS/MOEMS '09. Symposium on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-3874-7
