Transmitter architecture having a secondary phase-error correction loop including an amplitude reconstruction system

A system for using a translation loop modulator and power amplifier in a phase and amplitude modulated transmission environment including a secondary phase-error correction loop, comprising:

• a translation loop having a phase locked loop and configured to receive a first modulated signal, the translation loop also configured to provide a frequency specific modulated signal;
• a power amplifier configured to receive the frequency specific modulated signal;
• a variable gain element configured to provide a second modulated signal to the power amplifier;
• a first mixer configured to receive a portion of an output of the translation loop during a first time period;
• a second mixer configured to receive a portion of an output power of the power amplifier during a second time period;
• a phase detector configured to receive the output of the second mixer and the first modulated signal, the phase detector configured to provide an error signal;
• and
• a phase shifter configured to adjust a phase of the first modulated signal to compensate for any phase variation present in the detected output power portion of the power amplifier.

A method for correcting phase-error in a transmitted signal using a translation loop modulator and power amplifier including a secondary phase-error correction loop, comprising the steps of:

• providing a modulated signal to a translation loop, the translation loop providing a frequency specific modulated signal;
• providing the frequency specific modulated signal to a power amplifier;
• detecting a portion of an output of the translation loop and a portion of an output power of the power amplifier;
• applying the detected output portion of the translation loop to an input of the translation loop during a first time period;
• applying the detected output power portion of the power amplifier to the input of the translation loop during a second time period;
• detecting a phase difference between the modulated signal and the detected output power portion of the power amplifier;
• developing an error signal based on the detected phase difference;
• and
• supplying the error signal to a phase shifter, the phase shifter configured to adjust a phase of the modulated signal to compensate for any phase variation present in the detected output power portion of the power amplifier.

A system for correcting phase-error in a transmitted signal using a translation loop modulator and power amplifier including a secondary phase-error correction loop, comprising:

• a translation loop configured to receive a modulated signal, the translation loop also configured to provide a frequency specific modulated signal;
• a power amplifier configured to receive the frequency specific modulated signal;
• a first mixer configured to receive a portion of an output of the translation loop during a first time period;
• a second mixer configured to receive a portion of an output power of the power amplifier during a second time period;
• a phase detector configured to receive the output of the second mixer and the first modulated signal, the phase detector configured to provide an error signal;
• and
• a phase shifter configured to adjust a phase of the modulated signal to compensate for any phase variation present in the detected output power portion of the power amplifier.

A system for correcting phase-error in a transmitted signal using a translation loop modulator and power amplifier including a secondary phase-error correction loop, comprising:

• means for providing a modulated signal to a translation loop, the translation loop providing a frequency specific modulated signal;
• means for providing the frequency specific modulated signal to a power amplifier;
• means for detecting a portion of an output of the translation loop and a portion of an output power of the power amplifier;
• means for applying the detected output portion of the translation loop to an input of the translation loop during a first time period;
• means for applying the detected output power portion of the power amplifier to the input of the translation loop during a second time period;
• means for detecting a phase difference between the modulated signal and the detected output power portion of the power amplifier;
• means for developing an error signal based on the detected phase difference;
• and
• means for supplying the error signal to a phase shifter, the phase shifter configured to adjust a phase of the modulated signal to compensate for any phase variation present in the detected output power portion of the power amplifier.