DocumentCode
2197941
Title
Coplanar MMIC active bandpass filters using negative resistance circuits
Author
Hopf, B. ; Wolff, I. ; Guglielmi, M.
Author_Institution
Inst. fur Mobil- und Satellitenfunktechnik, Kamp-Lintfort, Germany
fYear
1994
fDate
23-27 May 1994
Firstpage
1183
Abstract
A second order active bandpass filter for a fixed centre frequency and a tunable one have been developed in a coplanar line technique using negative resistance circuits. These filters operate in the 1.8 GHz band and have a 3 dB bandwidth of 110 MHz. The tuning range of the centre frequency is 200 MHz. Each filter is fabricated on a GaAs substrate and occupies an area of 1.5/spl times/1.6 mm/sup 2/ on the wafer including all biasing elements.<>
Keywords
MMIC; active filters; active networks; band-pass filters; microwave filters; negative resistance; tuning; 1.5 mm; 1.6 mm; 1.8 GHz; 110 MHz; GaAs; GaAs substrate; biasing elements; coplanar MMIC active bandpass filters; fixed centre frequency; negative resistance circuits; tunable centre frequency; wafer area; Band pass filters; Bandwidth; Circuit optimization; Frequency; Gallium arsenide; MMICs; Tunable circuits and devices; Tuning;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 1994., IEEE MTT-S International
Conference_Location
San Diego, CA, USA
ISSN
0149-645X
Print_ISBN
0-7803-1778-5
Type
conf
DOI
10.1109/MWSYM.1994.335556
Filename
335556
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