BIas Circuit IEEE Paper

gogo1222

【文件名】:0686@52RD_A MMIC smart power amplifier with on-chip dynamic bias controller for WCDMA mobile communication.pdf
【格　式】:pdf
【大　小】:555K
【简　介】:
【目　录】:

Abstract – This paper presents an InGaP/GaAs HBT smart
MMIC power amplifier provided with a new dynamic bias
controller and dual power stages in parallel. The proposed
dynamic bias circuit controls the quiescent current as a
function of input power with perfect freedom, and is
implemented to a WCDMA MMIC power amplifier together
with the parallel power stages for both linearity and
efficiency. Maximum output power, PAE, and gain are
simulated to have 31.3dBm, 40.8%, and 23.9dB, respectively,
at the WCDMA condition. The smart power amplifier
exhibits an improvement of average power usage efficiency
by 220 % while keeping the WCDMA linearity.
Index Terms – Hetero-junction bipolar transistor (HBT),
monolithic microwave integrated circuit (MMIC), power
amplifier, dynamic bias controller, dual power stage, wideband
code-division multiple access (WCDMA)

gogo1222

【文件名】:0686@52RD_A monolithic Si PCS-CDMA power amplifier with 30% PAE at 1.9 GHz using a novel biasing scheme.pdf
【格　式】:pdf
【大　小】:150K
【简　介】:
【目　录】:

Abstract—A monolithic Si personal-communicationsystem–
CDMA power amplifier (PA) capable of delivering
28.2-dBm output power with 30% power-added efficiency and
45-dBc adjacent-channel-power ratio at 1.9 GHz and 3.6-V
supply voltage is presented for the first time in this paper. The PA
implemented in a 30-GHz BiCMOS process incorporates a novel
impedance-controllable biasing scheme to control the class of
operation and bias impedance of the output stage. Both simulated
and measured results are presented for comparison.

zminhan

谢谢!!!

sydy110

坚决支持免费.

sean65

thanks.

sean65

免费的支持一下！！