kamranraja222
Member level 1
Hello everyone,
I am working on a system which has following configuration:
Attenuator(7dB),Amplifier(17dB),Attenuator(9dB),frequency multiplier(18dB loss),Bandpass filter(3dB loss),Amplifier(26dB)
This system works as X3 frequency multiplier(100 MHz to 300 MHz). I am bound to use the initial attenuators and amplifier(but I can alter their values). The problem I am facing is with Noise figure of the system. If I changed the Noise figure of the system by changing the values of the attenuators(increased or decreased), the measured noise level remained at same level, which is the also the same noise level of actual configuration. The input power level and output power level remained at same level. Please help me out. Thanks and best regards
I am working on a system which has following configuration:
Attenuator(7dB),Amplifier(17dB),Attenuator(9dB),frequency multiplier(18dB loss),Bandpass filter(3dB loss),Amplifier(26dB)
This system works as X3 frequency multiplier(100 MHz to 300 MHz). I am bound to use the initial attenuators and amplifier(but I can alter their values). The problem I am facing is with Noise figure of the system. If I changed the Noise figure of the system by changing the values of the attenuators(increased or decreased), the measured noise level remained at same level, which is the also the same noise level of actual configuration. The input power level and output power level remained at same level. Please help me out. Thanks and best regards