K-band CMOS power amplifier with adaptive bias for enhancement in back-off efficiency

A K-band power amplifier that dynamically adjusts the dc consumption based on the output power is presented. Compared with a fixed-bias PA that consumes a constant dc power of 265 mW, the proposed PA saves 157 mW at quiescent state and 88 mW when operated at P1dB 6-dB back-off, and the OP1dB of the PA is also extended. This is the first CMOS PA with effective enhancement in back-off efficiency near MMW region.

[1]  Huei Wang,et al.  A 22-dBm 24-GHz power amplifier using 0.18-µm CMOS technology , 2010, 2010 IEEE MTT-S International Microwave Symposium.

[2]  Viswanathan Subramanian,et al.  Fully integrated high efficiency K-band PA in 0.18 µm CMOS technology , 2009, 2009 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC).

[3]  Gang Liu,et al.  Fully Integrated CMOS Power Amplifier With Efficiency Enhancement at Power Back-Off , 2008, IEEE Journal of Solid-State Circuits.

[4]  Kun-You Lin,et al.  A 22.5-dB gain, 20.1-dBm output power K-band power amplifier in 0.18-µm CMOS , 2010, 2010 IEEE Radio Frequency Integrated Circuits Symposium.

[5]  Zuo-Min Tsai,et al.  A 19.1-dBm fully-integrated 24 GHz power amplifier using 0.18-μm CMOS technology , 2008, 2008 European Conference on Wireless Technology.

[6]  R. Evans,et al.  A 60-GHz fully-integrated Doherty power amplifier based on 0.13-μm CMOS process , 2008, 2008 IEEE Radio Frequency Integrated Circuits Symposium.

[7]  Ockgoo Lee,et al.  A 2.4 GHz Fully Integrated Linear CMOS Power Amplifier With Discrete Power Control , 2009, IEEE Microwave and Wireless Components Letters.

[8]  KwangDu Lee,et al.  High efficiency 5GHz CMOS power amplifier with adaptive bias control circuit , 2004, 2004 IEE Radio Frequency Integrated Circuits (RFIC) Systems. Digest of Papers.

[9]  A. Hajimiri,et al.  A 24-GHz, +14.5-dBm fully integrated power amplifier in 0.18-/spl mu/m CMOS , 2005, IEEE Journal of Solid-State Circuits.

[10]  P. Cochat,et al.  Et al , 2008, Archives de pediatrie : organe officiel de la Societe francaise de pediatrie.

[11]  Jong-Wook Lee,et al.  A 27 GHz, 14 dBm CMOS Power Amplifier Using 0.18 $\mu {\rm m}$ Common-Source MOSFETs , 2008, IEEE Microwave and Wireless Components Letters.

[12]  C.S. Park,et al.  An intelligent power amplifier MMIC using a new adaptive bias control circuit for W-CDMA applications , 2004, IEEE Journal of Solid-State Circuits.

[13]  D. Sira,et al.  Output Power Control in Class-E Power Amplifiers , 2010, IEEE Microwave and Wireless Components Letters.

[14]  Jeng-Han Tsai,et al.  A 20 to 24 GHz $+$16.8 dBm Fully Integrated Power Amplifier Using 0.18 $\mu{\rm m}$ CMOS Process , 2009, IEEE Microwave and Wireless Components Letters.