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A NOVEL ADAPTIVE CURRENT BIASED LINEAR RADIO-FREQUENCY POWER AMPLIFIER ON SIGE HBT PROCESS
Preview AbstractA novel adaptive current biased CLASS-A/shallow AB RF power amplifier is demonstrated in this paper. By theoretical deduction, a prototype is described to improve the linearity of a linear PA. With the realization on Jazz 0.35 μm SiGe HBT process and test verification, the novel adaptive current biased RF power amplifier shows 3 ~ 7 dB improvement of the ACPR at the output power of 19 dBm to meet the demand of CDMA IS95 spectrum mask without debasing the efficiency.