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A 6-10-GHz CMOS Power Amplifier with an Inter-stage Wideband Impedance Transformer For UWB Transmitters

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5 Author(s)
H. -W. Chung ; Institute of Computer and Communication Engineering, Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan, R.O.C ; C. -Y. Hsu ; C. -Y Yang ; K. -F. Wei
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A 6-10-GHz broadband CMOS power amplifier (PA) for Ultra-wideband (UWB) transmitters is presented. An inter-stage wideband impedance transformer is designed between the small-signal stage and driver amplifier for the wideband operation. The UWB PA is implemented in the 0.18-mum 1P6M standard UMC CMOS process. Fully on-wafer measurement shows that the fabricated PA exhibits an average small-signal gain, P1dB, and PAE of 8.5 dB, 5 dBm, and 14.4%, respectively, from 6 to 10 GHz. A low power consumption of only 18 mW is obtained from a voltage of 1.5 V.

Published in:

Microwave Conference, 2008. EuMC 2008. 38th European

Date of Conference:

27-31 Oct. 2008