A continuous sinewave with infinite duration in an ideal distortionless transmission medium would only have the fundamental in its spectrum. However, real-world finite duration sinewaves in distorted transmission system would have some harmonics. These harmonics would not be as pronounced as those of an impulse waveform. However, by running the impulse through an integrator circuit, the harmonics can be reduced. With a series of integrators, of course, you return to to something approaching a sinewave. Since most radio transmission are bandwidth limited with filters, many of the higher harmonics are hopefully missing.
Hi,
> Why does a sinusoidal waveform alone does not have any harmonics or
> distortion ?
>
> For example, (Reference ->
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> Sawtooth wave of constant period contains odd and even harmonics
> Square wave of constant period contains odd harmonics
> Triangle wave, (an integral of square wave) contains odd harmonics
>
> But, How is it possible that sinusoidal wave alone does not have any
> harmonics or distortion ?
> I searched the internet,but i did not find any link/pdf that talks in
> detail about these .
> Any ideas ?
>
> Thx in advans,
> Karthik Balaguru
>
>