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Improved Linearity Performance of a PHEMT Driver Amplifier Using Tunable Field-plate Voltage Technology

In this study, a high-linearity AlGaAs/InGaAs pseudomorphic HEMT RF driver amplifier was developed using a tunable field-plate (FP) bias voltage technology. In order to improve the circuit linearity performance, an FP device was employed at the output ...
Microwave power devices have recently played an important role in wireless communication systems, in which both the output power density and the device linearity are key factors in increasing the dynamic range, while satisfying the linearity requirements. The electric field profile across the channel of a PHEMT is a...
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