Tunable wideband low-noise amplifier for cognitive radio
Abstract
This wideband tunable low noise amplifier(LNA) introduces tunable narrow output as well as tunable input matching characteristic. This tunable narrowband input narrowband output LNA can suppress the unwanted interferences, spurious sideband, and harmonic signals which can not be done by flat gain wideband LNAs. This design includes built-in monitoring system and automatic tuning system by having external digital blocks so that it can be applicable to multiband radio system, software defined radio (SDR) wireless system or cognitive radio (CR) wireless system. The automatic tuning system will detect the peak of the signal amplitude, and feed the analog voltage into varactor. This design was fabricated in an IBM130nm CMOS process.
Degree
M.S.E.C.E.
Advisors
Jung, Purdue University.
Subject Area
Electrical engineering
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