Motorola Corporation

Shay Nir

Mark Rozental

Ovadia Grossman

Nir Corse

Moshe Ben Ayun

A RFPA (radio frequency power amplifier) circuit () which includes a RFPA (), a supply voltage source (), means () for applying to the RFPA a gain control bias voltage and a feedback control loop () for adjusting a voltage applied to the RFPA, the feedback control loop including a sampler () for sampling an output of the RFPA, a RF detector () for detecting a level of RF power sampled by the sampler, a comparator () for comparing an output signal from the RF detector with a reference signal, an integrator () for integrating an output signal of the comparator and a voltage regulator () having a first input from the integrator and a second input from the supply voltage source and an output connected to the RFPA, the regulator being operable to apply to the RFPA a supply voltage adjusted in response to an input signal from the integrator.

RF power amplifier circuit and RF transmitter and terminal including it

A wireless communication unit () comprises a voltage controlled oscillator () having an active device () operably coupled to a first variable capacitance () to provide a variable capacitance value based on an applied steering line voltage, and a feedback network comprising a resonator (), operably coupled to an output of the active device, for feeding power back to an input of the active device to sustain oscillations (). Notably, a second variable capacitance is operably coupled to receive a control voltage from the steering line () and located between the resonator () and the active device ().

Growing community of inventors

Holon, Israel

Shay Nir