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CMOS RF power amplifier with reconfigurable transformer

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4 Author(s)
Kim, Y. ; Sch. of Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea ; Park, C. ; Kim, H. ; Hong, S.

A CMOS RF power amplifier that can change the output transformer ratio is presented. The CMOS power amplifier is fully integrated in a 0.13 μm process and has a power added efficiency (PAE) of 38% at 2.1 GHz and an output power of 30.7 dBm with 3.0 V supply voltage. The PAE at an output power of 16 dBm was increased by 40% by altering the transformer ratio.

Published in:

Electronics Letters  (Volume:42 ,  Issue: 7 )