sci.physics.electromag

As you all know when AC pass threw a diode only halph the signal pass
threw.

But when I connect the diode to a coil the signal gets crazy. It looks
like that the diode does not work. Between each AC peak an attenuating
sinusoidal wave can be observed in the oscilloscope of grater
frequency than my signal.

Does any of you know to get rid of this attenuated sinusoidal wave
form?
I want to have a clear half AC wave form, as it should appear from the
diode.

Brgds