Title :
Improvements in losses and size of frequency tunable coplanar filter structures using MMIC negative resistance chips for multistandard mobile communication systems
Author :
Tanne, G. ; Ruis, E. ; Mahe, F. ; Toutain, S. ; Biron, F. ; Billonnet ; Jarry, B. ; Guillon, P.
Author_Institution :
LEST, CNRS, Brest, France
Abstract :
A new band-pass filter design technique is presented that uses coplanar passive interdigitated filters assisted by an MMIC active component which performs a negative resistance with an associated imaginary part in order to compensate for the losses of the passive filter and to reduce significantly the length of the resonators. A tunable version of the filter is also presented.
Keywords :
MMIC; band-pass filters; circuit tuning; coplanar waveguide components; losses; mobile radio; negative resistance circuits; waveguide filters; MMIC negative resistance chips; band-pass filter; filter design technique; frequency tunable coplanar filter structures; losses; multistandard mobile communication systems; passive interdigitated filters; tunable filter; Band pass filters; Coupling circuits; Frequency; MMICs; Microwave filters; Narrowband; Passive filters; Resonator filters; Strips; Superconducting filters;
Conference_Titel :
Microwave Symposium Digest. 2000 IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-5687-X
DOI :
10.1109/MWSYM.2000.863565
