摘要
通过对全固态广播发射机多级功放的功率合成方式的研究,分析了功放在不同工作状态下输出功率和阻抗的关系,研究了功放缺损与输出功率的关系,提出了简洁的计算公式用于调制与输出功率分析,采用"降功率"法为广播发射机维修提供了简便思路。
Through the research on the power synthesis method of the all-solid-state broadcast transmitter＇ s multi-stage power amplifier, this paper analyzes the relationship between output power and impedance in different working states of the amplifier. The relationship between power amplifier defect and output power is mainly studied. It summarizes a simple calculation formula for modulation and output power analysis. The ＂Reducing power＂ method which provides a simple idea for the maintenance of broadcast transmitters is also proposed.
作者
储德寅
周宏
Chu Deyin;Zhou Hong(Shangluo Radio and Television Station,Shangluo Shaanxi 726000,China;Zhen＇ an Yongle Radie and Television Service Station,Shangluo,Shaanxi 711500,China)
出处
《山西电子技术》
2018年第4期75-78,共4页
Shanxi Electronic Technology
关键词
全固态
发射机
功率合成
功率失配
all-solid-state
transmitter
power synthesis
power mismatch
