Synthesis and design of a suspended substrate capacitive gap-parallel coupled line bandpass filter with one transmission zero

Author

Hanna, E. ; Jarry, P. ; Kerherve, Eric ; Pham, J.-M. ; Tong, D. Lo Hine

Author_Institution

IXL Microelectron. Lab., Bordeaux I Univ., Talence, France

Volume

2

fYear

2003

fDate

14-17 Dec. 2003

Firstpage

547

Abstract

A design method for a suspended substrate stripline bandpass filter with one transmission zero at a given frequency is presented. We use a generalized Chebychev lowpass prototype based on admittance inverters and parallel resonators. The filter topology is called "Capacitive gap-parallel coupled line filter" because the synthesis is based on the equivalent circuits of parallel-coupled lines and end-coupled (gap) lines. A CAD software has been developed for the synthesis of such suspended substrate filters and a prototype filter at 8.5 GHz is given as an example.

Keywords

Chebyshev filters; band-pass filters; circuit CAD; coupled transmission lines; electric admittance; equivalent circuits; strip line filters; CAD; admittance inverters; capacitive gap-parallel coupled line filter; circuit synthesis; design method; equivalent circuits; generalized Chebyshev lowpass prototype; one transmission zero; parallel resonators; stripline bandpass filter; suspended substrate filter; Band pass filters; Circuit synthesis; Couplings; Design methodology; Filtering theory; Frequency; Prototypes; Resonator filters; Software prototyping; Stripline;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003 10th IEEE International Conference on

Print_ISBN

0-7803-8163-7

Type

conf

DOI

10.1109/ICECS.2003.1301843

Filename

1301843