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

fYear

2009

fDate

1-3 April 2009

Firstpage

157

Lastpage

160

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;

fLanguage

English

Publisher

ieee

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

Type

conf

Filename

4919492