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Narrow band MMIC active filter using negative resistance circuits in coplanar line technique

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2 Author(s)
Hopf, B. ; 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 ; Wolff, I.

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.

Published in:

Microwave Conference, 1995. 25th European  (Volume:2 )

Date of Conference:

4-4 Sept. 1995