DocumentCode
2138987
Title
A Compact Coplanar MMIC Mixer for 2.4 GHz Transponder Systems
Author
Tempel, R. ; Lütke, W. ; Wolff, I.
Author_Institution
Institut fÿr Mobil-und Satellitenfunktechnik, Carl-Friedrich-GauÃ\x9f-Str. 2, D-47475 Kamp-Lintfort, FRG. Phone: +49-2842-981-222 Fax: +49-2842-981-299 email: tempel@imst.de
Volume
1
fYear
1998
fDate
Oct. 1998
Firstpage
222
Lastpage
224
Abstract
A compact coplanar passive MMIC mixer has been developed, realized and tested successfully as a cost effective part of an I/Q demodulator module for applications in 2.4 GHz transponder systems. Although there are no external elements required, the cold-FET mixer´s size is only 1 mm2 including bias and active matching networks. Operating with 6V/15mA DC bias, required by the active matching FETs, the mixer has a maximum conversion gain of ¿2 dB at 9.5 dBm LO power and 100 MHz IF frequency. Intermodulation measurements show an IP3 of 6.9 dBm. The small wafer area is due to a consequent use of active elements for matching and biasing purposes.
Keywords
Circuits; Costs; Demodulation; Frequency; MESFETs; MMICs; Microwave FETs; Microwave transistors; Mixers; Transponders;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 1998. 28th European
Conference_Location
Amsterdam, Netherlands
Type
conf
DOI
10.1109/EUMA.1998.337990
Filename
4139077
Link To Document