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A 0.7 V 3-5 GHz CMOS Low Noise Amplifier for Ultra-Wideband Applications
Chih-Lung HSIAO Ro-Min WENG Wei-Chi LEE
IEICE TRANSACTIONS on Electronics
Publication Date: 2007/09/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Active Devices/Circuits
LNA, UWB, low voltage,
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A low voltage 3-5 GHz CMOS ultra-wideband low noise amplifier is presented in this paper. A second order bandpass input impedance matching technique is used to achieve the broadband input matching. A folded cascode structure is employed to reduce the supply voltage and power consumption. A source follower acts as the buffer stage for broadband output impedance matching. The supply voltage is only 0.7 V. The operation frequency is 3-5 GHz. The maximum power gain is 13.2 dB. The noise figure is 3-4.2 dB. The power consumption of the core circuit is only 6.3 mW.