quadrature amplifier

英

美

网络 (相位)正交放大器; 正交放大器; 相位正交放大器

Analysis of a quadrature power series predistortion amplifier
正交幂级数预失真放大器分析
The main functions of the RF part are completed with integrated chip, the frequencies moved from baseband to RF is completed by direct quadrature, the amplifier increases signal amplitude, the power of signal is amplified by power amplifier tube.
射频部分主要功能通过集成芯片完成：直接正交混频器实现基带到射频的搬移，放大器提高信号幅度，功放管完成信号的功率放大。
Transmitting module consists of a frequency synthesizer ( local oscillator signal), a quadrature modulator and a power amplifier.
发射模块包括频率合成器（本振信号）、正交调制器和功率放大器。
Instead of using the method of the popular quadrature modulation, I adopt the lower cost controllable gain amplifier ( VGA) chip for modulation after analyzing the requirements of modulation parameters in protocol, and we get the satisfied results.
通过分析协议中对调制参数的要求，本设计没有采用广泛应用的正交调制，而是采用成本更低可控增益放大器（VGA）芯片进行ASK调制取得了很好的调制效果。