1
Darrell G Epperson, Ryan Bosley: Tailored collector voltage to minimize variation in AM to PM distortion in a power amplifier. RF Micro Devices, Withrow & Terranova PLLC, September 19, 2006: US07109791 (72 worldwide citation)

A system is provided for substantially reducing variation in AM to PM distortion of a power amplifier caused by variations in RF drive power and temperature. The system includes power control circuitry and power amplifier circuitry. The power amplifier circuitry includes an input amplifier stage and ...


2
Darrell G Epperson, Carlos Gamero, Ryan Bosley, Joel R Gibson, Michael LaBelle, Scott Yoder: Power amplifier control technique for enhanced efficiency. RF Micro Devices, Withrow & Terranova PLLC, March 20, 2007: US07193459 (50 worldwide citation)

A power amplifier configuration including power amplifier circuitry and power control circuitry and having improved Power Added Efficiency (PAE) is provided. The power amplifier circuitry includes one or more input amplifier stages in series with a final amplifier stage. The power control circuitry ...


3
Ryan Bosley, Jackie Johnson, Frank Tamborino, Michael F Zybura: Temperature compensated bias for AM/PM improvement. RF Micro Devices, Withrow & Terranova P L L C, March 30, 2010: US07689182 (47 worldwide citation)

A system and method are provided for maintaining a consistent operating condition of a power amplifier power amplifier across a range of operating temperatures. The power amplifier is provided with an input bias voltage (Vbias) that adjusts with temperature to compensate for the temperature dependen ...


4
Jackie Johnson, Ryan Bosley, Michael F Zybura: Large signal polar modulated power amplifier. RF Micro Devices, Withrow & Terranova P L L C, September 22, 2009: US07593698 (14 worldwide citation)

Polar modulation input signals to a polar modulated power amplifier include a phase modulated (PM) input signal, which feeds a power amplifier input, and an amplitude modulated (AM) input signal, which provides an envelope supply voltage for the power amplifier. The present invention is a large sign ...


5
Carlos Gamero, Ryan Bosley: Temperature compensated power amplifier power control. RF Micro Devices, Withrow & Terranova PLLC, February 14, 2006: US06998919 (10 worldwide citation)

The present invention provides temperature compensation for a power amplifier by varying a supply voltage applied to the power amplifier. The supply voltage is varied based on operating temperature in light of the temperature characteristics of the power amplifier. Thus, the variation in the supply ...


6
Carlos Gamero, Ryan Bosley: Temperature compensated power amplifier power control. Rf Micro Devices, Withrow & Terranova Pllc, April 28, 2005: US20050088237-A1

The present invention provides temperature compensation for a power amplifier by varying a supply voltage applied to the power amplifier. The supply voltage is varied based on operating temperature in light of the temperature characteristics of the power amplifier. Thus, the variation in the supply ...



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