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CIRCUIT ARRANGEMENT FOR LIMITING AMPLITUDE MODULATION IN A FREQUENCY MODULATED SIGNAL

  • US 3,654,488 A
  • Filed: 11/18/1970
  • Issued: 04/04/1972
  • Est. Priority Date: 11/22/1969
  • Status: Expired due to Term
First Claim
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1. An arrangement for limiting amplitude modulation in a frequency modulated signal, comprising, in combination, a first transistor stage having a tuned output circuit furnishing a radio frequency signal;

  • a second transistor stage having an input;

    coupling coil means inductively coupling said radio frequency signal to said input of said second transistor stage; and

    a series circuit connected in parallel with said coupling coil means, said series circuit comprising a resistance, and a pair of diodes connected in parallel but with opposite polarity, said diodes having a low forward resistance and a low barrier layer capacitance.

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