Title :
Tunable high-Q MMIC active filter by negative resistance compensation
Author :
Hann-Haur Wu ; Yi-Jen Chan
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Chung-Li, Taiwan
Abstract :
This paper describes the techniques for realizing MMIC active filter using negative resistance to compensate the loss from the spiral inductor, in order to achieve high Q-value performance. The active coupled approach and common-gate FET with an inductive feedback configuration have been used in this study. The measured response of this filter exhibits the pass-band tuning range from 1.855 GHz to 2.14 GHz with a Q-value of 100. This filter has also been characterized by digital modulation signal.
Keywords :
MESFET integrated circuits; Q-factor; UHF filters; UHF integrated circuits; active filters; band-pass filters; circuit tuning; compensation; field effect MMIC; field effect analogue integrated circuits; microwave filters; negative resistance; 1.855 to 2.14 GHz; MMIC active filter; active coupled approach; common-gate FET; inductive feedback configuration; negative resistance compensation; spiral inductor loss; tunable high-Q filter; Active filters; Active inductors; Digital filters; Digital modulation; Electrical resistance measurement; FETs; Feedback; MMICs; Performance loss; Spirals;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 1997. Technical Digest 1997., 19th Annual
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-4083-3
DOI :
10.1109/GAAS.1997.628281
