Title :
Narrow band MMIC active filter using negative resistance circuits in coplanar line technique
Author :
Hopf, B. ; Wolff, I.
Author_Institution :
Institute of Mobile and Satellite Communication Techniques, Carl-Friedrich-GauB-Str. 2, D-47475 Kamp-Lintfort, Germany. Tel. ++49(2842)981200, Fax ++49(2842)981299
Abstract :
A narrow band second order active bandpass filter has been developed in coplanar line technique using negative resistance circuits. This filter has a tunable centre frequency from 1.92 GHz to 2 GHz, a 3 dB bandwidth of 24 MHz, which is about 1.2% of the centre frequency. It is fabricated on a GaAs substrate and occupies an area of 1.35 × 1.75 mm2 on the wafer including all biasing elements.
Keywords :
Active filters; Band pass filters; Bandwidth; FETs; Frequency; MMICs; Microwave filters; Narrowband; Tunable circuits and devices; Tuning;
Conference_Titel :
Microwave Conference, 1995. 25th European
Conference_Location :
Bologna, Italy
DOI :
10.1109/EUMA.1995.337135
