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Process and device for amplitude modulation of a radiofrequency signal

  • US 5,410,280 A
  • Filed: 05/26/1994
  • Issued: 04/25/1995
  • Est. Priority Date: 05/28/1993
  • Status: Expired due to Fees
First Claim
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1. Process for amplitude modulation of a signal, of the type consisting in modulating a radiofrequency output signal of a determined number of amplifying modules having transistors, by a modulation signal, said process consisting in breaking down the radiofrequency signal to be modulated according to at least a first and second signal, representing respectively the sum of the output voltages of identical respective amplitudes of a first and second determined number of modules, with which respectively a first and second vector are associated whose respective amplitudes and phases verify that the vectorial sum of the two vectors coincides with a determined reference that is used as a phase reference of the two vectors, and in modulating the respective phases of the two signals by the modulation signal and in adding the first and second phase modulated signal to obtain, after filtering, a resultant amplitude modulated signal.

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