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Tuned Common Base Amplifier(where r u keith!?)

时间:04-06 整理:3721RD 点击:
hey all
last days i tried to build ASK (Sender/Reciever) module but i faced some difficulties in understanding the reciever unit.
i need small signal Analysis for the first stage (Tuned Common Base Amplifier) as in the schematic below(Av, Rin,Ro )



Although, what do these parts work:
C3,C6,L1

where r u keith1200rs ... need ur help!

This is a super-regenerative receiver where Q1 is in the same time an amplifier and also a common-base LC oscillator, where C6 is used as a feedback network, C3 is an RF decoupling capacitor, and L1 is an RF choke.

jacob_abraham

did you find a solution for this problem. how can we analyse this?

unfortunately no, i couldn't find a mathematical model for this

this is a very interesting circuit.
thanks for your reply...

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