数字功率放大器制造技术

本申请公开了一种数字功率放大器，属于功率放大器领域，所述数字功率放大器包括：第一DSM、第二DSM、第一PWM、第二PWM、低通滤波器、数字上变频器、梳状滤波器和功率放大器；第一PWM与第一DSM耦合，用于调制第一DSM输入第一DSM信号，并输出第一PWM信号；第二PWM与第二DSM耦合，用于调制第二DSM输入的第二DSM信号，并输出第二PWM信号；低通滤波器分别与第一PWM和第二PWM耦合；数字上变频器与低通滤波器耦合，用于调制低通滤波后的第一PWM信号和低通滤波后的第二PWM信号，并输出预定射频频率的第三PWM信号；梳状滤波器与数字上变频器耦合，用于抑制第三PWM信号的PWM谐波；功率放大器与梳状滤波器耦合，用于对谐波抑制后的第三PWM信号进行功率放大处理。

Digital power amplifier

The application discloses a digital power amplifier, which belongs to the field of power amplifier. The digital power amplifier includes: the first DSM, the second DSM, the first PWM, the second PWM, the low-pass filter, the digital up converter, the comb filter and the power amplifier; the first PWM is coupled with the first DSM to modulate the first DSM input signal and output the first PWM signal; the second PWM It is coupled with the second DSM to modulate the second DSM signal input by the second DSM and output the second PWM signal; the low-pass filter is coupled with the first PWM and the second PWM respectively; the digital up converter is coupled with the low-pass filter to modulate the first PWM signal after the low-pass filter and the second PWM signal after the low-pass filter and output the third PWM signal of the predetermined RF frequency; the comb filter and the digital Word up converter coupling is used to suppress PWM harmonics of the third PWM signal; power amplifier and comb filter coupling is used to amplify the third PWM signal after harmonic suppression.

【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。

【技术保护点】
PCT国内申请，权利要求书已公开。/n

【技术特征摘要】
【国外来华专利技术】PCT国内申请，...

【专利技术属性】
技术研发人员：黄伟，孙益军，
申请(专利权)人：华为技术有限公司，
类型：发明
国别省市：广东;44