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In this paper, a novel bipolar-MOSFET (BiFET) cascode differential power amplifier (PA) is proposed and fabricated, showing strong improvement on the linearity performances over those of the conventional bipolar-bipolar cascode PA. The two-stage differential BiFET cascode PA achieves Pout of 25.7 dBm with 52.1 % power-added-efficiency (PAE) in the continuous wave (CW) measurement at 900 MHz. A conventional...
This paper presents the design insights for the implementation of a fully monolithic radio frequency (RF) power amplifier (PA) using both envelope-tracking (ET) and transistor resizing techniques for long-term evolution (LTE) applications. At the low output power region, some of the power cells in the PA can be disabled to further save power consumption, thus enhancing the efficiency from a traditional...
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