Radio frequency transmitter and methods thereof

A method comprising:

• when a targeted power level is below a predetermined power level:
• generating baseband signals having relative phase differences, said relative phase differences determined from an instantaneous amplitude of an input signal and from said predetermined power level, the amplitude of said baseband signals being determined, at least in part, from said targeted power level;
• and
• combining signals derived from said generated signals into an output signal having an average power that is substantially equivalent to said targeted power level, said derived signals having a common carrier frequency.