Radio Frequency (RF) amplifiers with voltage limiting using non-linear feedback are presented herein. According to one aspect, an RF amplifier comprises an amplifier circuit having an input terminal and an output terminal and a non-linear feedback circuit having an input terminal and an output ...
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Generally, the invention relates to a method and apparatus to improve the performance of radio frequency power amplifiers. More particularly, the present invention discloses the use of a power booster in conjunction with a radio-frequency linear power amplifier to reduce intermodulation distortion of ...
Radio Frequency (RF) amplifiers with voltage limiting using non-linear feedback are presented herein. According to one aspect, an RF amplifier comprises an amplifier circuit having an input terminal and an output terminal and a non-linear feedback circuit having an input terminal and an output ...
As a result, present-day linear amplifiers, especially cellular radio frequency (RF) power amplifiers (PAs), are manufactured with linear but expensive technologies such as GaAs rather than nonlinear but low-cost technologies such as CMOS.Ding, Miaofu...
As a result, present-day linear amplifiers, especially cellular radio frequency (RF) power amplifiers (PAs), are manufactured with linear but expensive technologies such as GaAs rather than nonlinear but low-cost technologies such as CMOS.;To realize true linearity independent of the transistor ...
Radio frequency signal processing and amplification in cartesian loop and other linear amplifiersA Cartesian Loop radio frequency transmitter has its I and Q channel processing circuitry implemented in an ASIC, which produces a forward path output signal in a first radio frequency band. At least one...
has introduced a line of GaAs MMIC power amplifiers covering the 13 GHz to 40 GHz frequency bands. The amplifiers are intended for wireless communications applications, such as commercial digital radios, wireless LANs and VSAT applications.Engineering samples are available, along with small production ...
The bias control signal is generated such that a gain change of the multi stage power amplifier circuit due to a supply voltage change is substantially compensated.doi:US7969240 B2Kenneth SearleEdward John WhittakerUS
The bias control signal is generated such that a gain change of the multi stage power amplifier circuit due to a supply voltage change is substantially compensated.doi:US20100007414 A1Searle, KennethWhittaker, Edward J.US