In the hertzian radiation mechanism, the antiparticle is nothing else than an electron flowing back in the opposite direction to the one it was initially injected from, as demonstrated long ago by the author exploiting the radioluminescence phenomenon.
The radio-electric transduction mechanism is fully consistent with Prof. John Archibald Wheeler's own intuition, being it that an electron reversing its path would act as a "positron". (something aknowledged by Richard Feynman in his Nobel lecture)
Hence, the minus sign of one of the two Dirac's equation solutions indicates the negative direction of the particle and not a negative charge of it!
Evidence shows that the law of conservation of energy holds true, while leaves no room for keeping on theorizing about the positron and the antimatter.
Francesco Errante
www.Radiondistics.com