/ HYBRID CHIREIX/DOHERTY AMPLIFIERS POWER WAVEFORM SYNTHESIS

摘要

The two amplifiers are driven in phase with the other modulation in combination with each other gives the amplifier will affect the effective load line for each other. Two amplifiers may maintain efficiency over a wider dynamic area than in the conventional amplifier. Amplifier according to the present invention amplifies the AC input signal by the amplitude and phase fluctuations using a DC power supply. Converter is an AC input signal, the amplitude is constant and the amplitude is constant and a first signal having a phase angle of the first, and converted into a second signal having a phase angle of the second. The first amplifier amplifies the first signal, the second amplifier amplifies the second signal. Combining multiple combines the first and the second amplifier and the load impedance with each other, a voltage or current of the first amplifier to be related to a voltage or current to the linear of the second amplifier. The coupler includes at least one transformer for coupling in series with the first and the second amplifier and the load impedance with each other. The coupler also includes first and second quarter-wave transmission line coupled to the first and second amplifiers to one another, or the load impedance. Amplifier is preferably, by using a two-way device, the current cycle and during signal flow in the DC power supply from the first and second amplifiers, and therefore returns the energy to the DC power supply. The amplitude is constant and each of the two or more signals of the phase control is amplified in a separate discrete amplifier. Two or more signal amplitude is constant and the phase separation is the control amplifier is coupled to generate the output signal the input signal is amplified at a predetermined power level. When converting the input signal into two or more signals, the amplitude is constant and phase for each of the two or more signals with a controlled phase is controlled to generate an output signal amplifying an input signal at a predetermined power level. According to another feature, the signal amplitude and phase variations are generated from the plurality of signal amplitudes are constant and the phase variation, and the sum is a signal the amplitude and phase variations. IQ waveform generator generates a cosine carrier modulation waveform I (t) and a sine carrier modulation waveform Q (t) from the signal of the amplitude and phase variations. Function generator is the sum of 'generates a (t) I (t) and Q' complementary waveform Q from the cosine carrier modulation waveform I (t) (t) is constant. A first modulator modulates a cosine carrier signal with I (t) to obtain a cosine carrier of the first modulation. A second modulator modulates a sine carrier signal with Q '(t) to obtain a first modulated sine carrier of claim. Circuit, such as a battery circuit is amplitude is constant to form a sum and difference of the first modulated cosine carrier and the first modulated sine carrier wave, and acquires a signal to the phase change.