Experts help !! Drive circuit of alterating magnet field generator for frequency range from Hz to M

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Hi friends,

I'm a beginner designing a drive circuit of an Alterating Magnet Field
genetaror, it is required to realize a frequency range covering Hz to
kHz to MHz, within in a compact system, and to be used for some
hyperthermia treatment and experiments, the amplitude of the magnet
field should be around the order of several kA/m.

But it sounds so difficult to make such a single compact drive circuit
with such a wide range of frequency, and also high amplitude up to
kA/m,
I have no idea now, anybody having experience can give meany
suggestions ? Or possible references or tools for it ? It 's really a
tough job for me without any previous experience.

Thank you all very much.