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Conference Paper
Differential Variable-Gain LNA for UWB System
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- Authors
- Woojin Chang, Sangheung Lee, Jaekyoung Mun, Eunsoo Nam
- Issue Date
- 2012-10
- Citation
- European Microwave Integrated Circuits Conference (EuMIC) 2012, pp.377-380
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper introduces an 1~12 GHz differential 2-stage variable-gain low-noise amplifier (VGLNA) using 0.25 μm SiGe:C BiCMOS commercial process technology for ultrawideband (UWB) system. The results of the fabricated monolithic microwave integrated circuit (MMIC) amplifier show 18 dB gain with a 3 dB frequency band of 1.3~11.9 GHz and noise figure of less than 5 dB under the bias condition of 2.5 V supply voltage and 55 mW total dc power consumption. The gain-control range (GCR) is from -17 dB to +18 dB. The chip size of the manufactured VGLNA is 0.99 mm2 including all testing pads for RF and dc probes.
- KSP Keywords
- Control range, Dc power, Microwave monolithic integrated circuits(MMIC), Noise Figure(NF), Power Consumption, Supply voltage, UWB system, frequency band, low noise amplifier(LNA), microwave integrated circuit, process technology