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Re: Steve ugly-build LZ1AQ using MPS2222 sweeps uploaded to Photos


 

On Sat, Oct 5, 2024 at 01:27 PM, Raphael Wasserman wrote:
Only when the reactive element? in series, namely the inductance, is significantly less than the ohmic resistance of the loop I suppose we can say we have a flat independant frequency response of antenna.
I don't think this supposition is correct.? In simulation of a short-circuited loop with ZERO ohmic resistance, we see that flat frequency response.? In my simple country engineer way of looking at things this makes sense because the loop gets larger (as a fraction of a wavelength) at the same time as its inductance goes up.
?
Maybe we shouldn't be so surprised that the behaviors seem inconsistent between short-circuited and open-circuited load for a small loop.? Reflections matter.
?
Dan - K3GMQ

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