Design of a broad-bandpass filter using microstrip/CPW structures with PBG substrate

Author

Abdelrazzak, Maher M.

Author_Institution

Fac. of Eng., Mansoura Univ., Mansoura, Egypt

fYear

2009

fDate

17-19 March 2009

Firstpage

1

Lastpage

7

Abstract

Compact broad-bandpass filters based on the composite microstrip/coplanar waveguide (CPW) with Photonic bandgap (PBG) are presented. The transition between the microstrip and CPW is based on the electromagnetic frequency characteristics and leads to surface coupling between microstrip and CPW. By controlling the CPW slots and microstrip conductor width, wide bandpass filters can be obtained. The PBG is used to force a band stop response at the higher end of the passband. Numerical results show that the return loss is less than -10 dB over the frequency range of 7.5-20.5 GHz which is suitable for the applications of the Ku band. The finite difference time domain method (FDTD) with perfect matched layer (PML) is used in the present analysis.

Keywords

band-pass filters; coplanar waveguides; finite difference time-domain analysis; microstrip filters; photonic band gap; PBG substrate; broad-bandpass filter; coplanar waveguide; finite difference time domain method; microstrip/CPW structures; perfect matched layer; photonic bandgap; Band pass filters; Coplanar waveguides; Electromagnetic coupling; Electromagnetic forces; Electromagnetic waveguides; Finite difference methods; Frequency; Microstrip filters; Photonic band gap; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Science Conference, 2009. NRSC 2009. National

Conference_Location

New Cairo

ISSN

1110-6980

Print_ISBN

978-1-4244-4214-0

Type

conf

Filename

5234018