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该功放设计装调后,经试用,技术性能,可靠性和相位噪声等主要指标都较满意,现供大家参考。功放组合,由三级放大和一级功率分配器组成.工作频率为60MHZ,输入输出阻抗75Ω,输入功率2mw;输出分为四路,三路低功率输出,功率15mw,彼此隔离大于30db;另一路为高功率输出,功率可达2W,并可调整。附加相位噪声很小,对60MHZ 高瞬稳的晶振信号经该放大器放大后,对其信号纯度影响不大。关于甚高频晶体管功放,目前分析设计方面的资料已经很多了,具体的设计这里不详细
The power amplifier design installed, the trial, technical performance, reliability and phase noise and other key indicators are more satisfactory, is for your reference. The power amplifier is composed of three stages of amplification and a power distributor, the working frequency is 60MHZ, the input and output impedance is 75Ω, the input power is 2mw, the output is divided into four channels and three low power outputs with the power of 15mW, which are separated from each other by more than 30db. All the way to high power output, power up to 2W, and can be adjusted. Additional phase noise is very small, high-instability of the crystal oscillator 60MHZ signal amplified by the amplifier, the signal purity little effect. About VHF transistor amplifier, the current analysis of design information has been a lot of specific design here is not detailed