DocumentCode :
3462608
Title :
SiGe BiCMOS wide-band and tunable bandpass LNAs for adaptive multifunctional phased arrays
Author :
Malmqvist, R. ; Samuelsson, C. ; Nilsson, T. ; Ferrer, I. ; Svedin, J. ; Dalerå, A.
Author_Institution :
FOI Swedish Defence Res. Agency, Linkoping, Sweden
Volume :
3
fYear :
2005
fDate :
4-6 Oct. 2005
Abstract :
We study possibilities of implementing two key components for the RF front-ends of adaptive multifunctional phased arrays using a SiGe BiCMOS low cost technology. Measured data of an L-band to X-band LNA together with simulated results of a 5.2-5.5 GHz tunable bandpass LNA (active filter) show that adequate performance (in terms of high gain, low noise figure and power dissipation) potentially can be achieved while using small circuit areas. We further propose the use of low loss RF MEMS based TTDs as frequency tuning elements in tunable bandpass LNAs to be able to achieve wider center frequency tuning ranges (up to 20-50%) and also lower values of noise figure and power dissipation, respectively.
Keywords :
BiCMOS analogue integrated circuits; Ge-Si alloys; MMIC amplifiers; active filters; adaptive antenna arrays; antenna phased arrays; band-pass filters; low noise amplifiers; micromechanical devices; microwave filters; wideband amplifiers; 5.2 to 5.5 GHz; BiCMOS bandpass LNA; L-band LNA; RF MEMS; RF front-ends; SiGe; X-band LNA; active filter; adaptive phased arrays; multifunctional phased arrays; tunable bandpass LNA; wide-band bandpass LNA; Adaptive arrays; BiCMOS integrated circuits; Frequency; Germanium silicon alloys; Noise figure; Phased arrays; Power dissipation; Silicon germanium; Tunable circuits and devices; Wideband;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Conference, 2005 European
Print_ISBN :
2-9600551-2-8
Type :
conf
DOI :
10.1109/EUMC.2005.1610349
Filename :
1610349
Link To Document :
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