A Low-Voltage Low-Power K-Band CMOS LNA Using DC-Current-Path Split Technology

A low-voltage low-power K-band low-noise amplifier (LNA) using 0.18 μm CMOS technology is presented in this letter. By splitting the dc current paths, the supply voltage of the LNA is effectively reduced. Moreover, the forward-biased body is adopted for the LNA to boost the gain. Furthermore, the high-value resistors are utilized between nMOS bodies and forward-body biases (VB) to prevent the signal leakage and noise coupling. The proposed LNA achieved a 13.2 dB gain and 4.1 dB noise figure at 20.5 GHz. The supply voltage and total dc power consumption are 0.6 V and 7.1 mW, respectively. To the author's knowledge, this LNA demonstrates the lowest supply voltage among previously published K-band 0.18 μm CMOS LNA.

[1]  B. Heydari,et al.  30 GHz CMOS Low Noise Amplifier , 2007, 2007 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium.

[2]  D. Ritter,et al.  A 25 GHz 3.3 dB NF low noise amplifier based upon slow wave transmission lines and the 0.18 μm CMOS technology , 2008, 2008 IEEE Radio Frequency Integrated Circuits Symposium.

[3]  Liang-Hung Lu,et al.  A 24-GHz Receiver Frontend With an LO Signal Generator in 0.18-$\mu$m CMOS , 2008, IEEE Transactions on Microwave Theory and Techniques.

[4]  Da-Chiang Chang,et al.  K-Band Low-Noise Amplifiers Using , 2004 .

[5]  Marc Tiebout,et al.  A 2kV ESD-Protected 18GHz LNA with 4dB NF in 0.13μm CMOS , 2008, 2008 IEEE International Solid-State Circuits Conference - Digest of Technical Papers.

[6]  Jun-De Jin,et al.  A Low-Power Low-Noise Amplifier for K-Band Applications , 2009 .

[7]  Kyung-Wan Yu,et al.  K-band low-noise amplifiers using 0.18 /spl mu/m CMOS technology , 2004, IEEE Microwave and Wireless Components Letters.

[8]  K.-Y. Lin,et al.  A 24-GHz 3.9-dB NF low-noise amplifier using 0.18 /spl mu/m CMOS technology , 2005, IEEE Microwave and Wireless Components Letters.

[9]  Yo-Sheng Lin,et al.  A 21–27 GHz CMOS wideband LNA with 9.3±1.3 dB gain and 103.9±8.1 ps group-delay using standard 0.18 μm CMOS technology , 2009, 2009 IEEE Radio and Wireless Symposium.

[10]  Meng-Ju Chiang,et al.  A 3.3 mW K-Band 0.18-$\mu$ m 1P6M CMOS Active Bandpass Filter Using Complementary Current-Reuse Pair , 2008, IEEE Microwave and Wireless Components Letters.

[11]  Huey-Ru Chuang,et al.  A 24-GHz transformer-based single-in differential-out CMOS low-noise amplifier , 2009, 2009 IEEE Radio Frequency Integrated Circuits Symposium.