国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

Based on the current high efficiency and complex modulation technology, the demand for the linearization of power amplifier is higher and higher, a linearizer using analog pre-distortion is proposed in this paper to improve the non-linear distortion of GaN power amplifier at Ka-band. It is improved on the basis of traditional pre-distorter and composed of two parallel Schottky diodes using open loop method. It can generate the distorted signals which are on different degree of improvement through changing the offset state of the diode. The initial value can be gained by using the ADS2013 which is specialized electromagnetic simulation software. Then the value gained provides the theoretical basis for physical object debug. The physical object tests show that the linearizer can provide 6.4dB gain expansion and 28° phase expansion.