Title :
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
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;
Conference_Titel :
Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003 10th IEEE International Conference on
Print_ISBN :
0-7803-8163-7
DOI :
10.1109/ICECS.2003.1301843
