DocumentCode
2165064
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
22-25 May 1994
Firstpage
229
Lastpage
231
Abstract
A second order active bandpass filter for a fixed centre frequency and a tunable one have been developed in 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
III-V semiconductors; MMIC; active filters; active networks; band-pass filters; field effect integrated circuits; gallium arsenide; microstrip components; microwave filters; negative resistance; radiofrequency filters; tuning; 1.8 GHz; 110 MHz; GaAs; GaAs substrate; MMIC active bandpass filters; UHF IC; coplanar line technique; negative resistance circuits; tuning range; Active inductors; Band pass filters; Bandwidth; FETs; Feedback circuits; Frequency; MMICs; Space technology; Tunable circuits and devices; Tuning;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave and Millimeter-Wave Monolithic Circuits Symposium, 1994. Digest of Papers., IEEE 1994
Conference_Location
San Diego, CA, USA
Print_ISBN
0-7803-1418-2
Type
conf
DOI
10.1109/MCS.1994.332097
Filename
332097
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