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This paper presents the design and nonlinear analysis of a mm-wave wideband Doherty power amplifier at 22 to 29GHz with 7GHz bandwidth, the design is done using 0.15μm GaAs PHEMT transistor to support a variety of mm-wave applications including point to point digital radio, LMDS/LMCS, ka-band satellite spacecraft and ISM applications. The wideband Doherty power amplifier provides greater than 21dBm...
This paper presents the design and simulation of an envelope tracking power amplifier (ET-PA) for 28 GHz LMDS applications. A linearization algorithm is also employed in digital domain in order to reduce the distortion of the system. Simulation shows that proposed ET-PA delivers 19dBm output power with 21dB linear gain. Power added efficiency of this amplifier is more than 41% which shows about 15...
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