Oh sorry for my mistake. V(n008) is voltage input and signal V(n004) is voltage output.I would assume the yellow trace is from V1 but where is the blue trace measured?
I'll check it.You have the transformer coupling co-efficient set to 1, try adding some losses to L1 L2 and/or L4.
This diode model is not in LTspice. Is there any replacement?diode 1N 5817 is not suitable, replace with 1N5711
It may be. I noticed that by changing the induction value of the coils, the amplitude of the signal at the output changes.You may note that in the three schematics in post #7 the upper and lower (L1 and L2 in your schematics) tuned circuits are set to slightly lower and slightly high than center frequency. They are effectively two slope filters working in opposite directions and producing opposite polarities. Your schematic doesn't do that and additionally, if L4 and L5 are part of the same transformer, their fields will cancel.
notThis diode model is not in LTspice. Is there any replacement?
Its a frequency discriminator, to see how it responds you have to sweep the input frequency across its passband and look at the resulting amplitude change. The point I made about the inductors is that unless the simulation understands the construction of the transformer, it will not give the correct result. If treated as simple inductors and all being the same value, it becomes nothing more than an RF rectifier circuit.It may be. I noticed that by changing the induction value of the coils, the amplitude of the signal at the output changes.
What frequency is it supposed to work at?
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