Highly Integrated Transformer-Coupled RF Power Amplifier with Wide Adjustment Range
A power amplifier and transformer coupling technology, applied in the field of radio frequency front-end, can solve the problems such as difficulty in adapting to the needs of chip single-chip and high efficiency, limited range of transmission power adjustment, and difficulty in meeting the needs, so as to reduce sensitivity, increase transmission power, The effect of increasing the output voltage swing
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[0025] refer to figure 1 and figure 2 , the present invention has a wide adjustment range and a highly integrated transformer-coupled radio frequency power amplifier, including a single-slip circuit 3, a driving power amplifier circuit 5, an interstage matching network circuit 8, a power amplifier circuit array 11 and a non-equal series power coupling transformer unit 12 The differential output terminal of the single-slip circuit 3 is connected to the differential input terminal of the non-equal series power coupling transformer unit 12 through the drive power amplifier circuit 5, the interstage matching network circuit 8 and the power amplifier circuit array 11 in sequence.
[0026] Preferably, the single-slip circuit 3 is used to convert single-ended signals to differential signals within a wide frequency range, and provides differential signals to the subsequent drive power amplifier circuit; the drive power amplifier circuit 5 is used to convert the differential power Th...
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