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This paper describes circuit design and measurement results of our newly developed InGaP/GaAs-HBT MMIC power amplifier (PA) module which can operate with 2.4-V low reference and low supply voltages of its on-chip bias circuits. To achieve the low-reference voltage operation, the following two new circuit design techniques are incorporated into the power amplifier: 1) AC-coupled, divided power stage...
This paper describes circuit design and measurement results of a newly developed InGaP/GaAs HBT MMIC power amplifier module (PA) which can operate with 2.4-V low reference (Vref) and supply voltages of its on-chip bias circuits. To achieve the low-Vref operation, the following two new circuit design techniques are incorporated into the IC: (i) two different kinds of bias feeding (current feed, and...
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