Method and system of amplitude modulation using dual/split channel unequal amplification

A method of amplitude modulating a phase modulated signal comprising:

• producing a first phase modulated signal and a second phase modulated signal that is phase shifted from said first phase modulated signal;
• amplifying said first phase modulated signal by a first amplification factor to generate a first amplified signal;
• modulating said second phase modulated signal using variable amplification by a second amplification factor to generate a second amplitude modulated signal, said second amplification factor being greater than said first amplification factor;
• and
• summing said first amplified signal and said second amplitude modulated signal to generate an amplitude modulated signal of said phase modulated signal.

A method of generating a phase modulated signal having a phase discontinuity, comprising:

• generating an in-phase carrier signal and an antiphase carrier signal;
• generating a modulation signal that exhibits positive and negative excursions about a midpoint;
• amplifying the carrier signal to produce amplified signals, including:
• during an interval during which the modulation signal exhibits a positive excursion, applying greater amplification to the in-phase carrier signal than to the antiphase carrier signal;
• and
• during an interval during which the modulation signal exhibits a negative excursion, applying greater amplification to the antiphase carrier signal than to the in-phase carrier signal;
• wherein an amplified signal experiencing greatest amplification incorporates an offset level, and an amplified signal experiencing least amplification is of a level substantially equal to said offset level;
• and
• combining the amplified signals to produce said phase modulated signal.

An amplifier apparatus comprising:

• means responsive to a carrier signal for generating an in-phase carrier signal and an antiphase carrier signal;
• one amplifier device for amplifying the in-phase carrier signal to produce one amplified signal;
• another amplifier device for amplifying the antiphase carrier signal to produce another amplified signal, the one amplifier and the other amplifier being substantially commensurate in amplification capability;
• a combiner for combining the one amplified signal and the other amplified signal;
• and
• a control circuit, responsive to a modulation signal that exhibits positive and negative excursions about a midpoint, for controlling the one amplifier device and the other amplifier device such that:
• during an interval during which the modulation signal exhibits a positive excursion, greater amplification is applied to the in-phase carrier signal than to the antiphase carrier signal;
• during an interval during which the modulation signal exhibits a negative excursion, greater amplification is applied to the antiphase carrier signal than to the in-phase carrier signal;
• and
• an amplified signal experiencing greatest amplification incorporates an offset level, and an amplified signal experience least amplification is of a level substantially equal to said offset level.