Systems and methods of RF power transmission, modulation, and amplification, including embodiments for extending RF transmission bandwidth

A method for at least one of RF power transmission, modulation and amplification, comprising:

• generating a plurality of control signals from information;
• generating a plurality of substantially constant envelope signals using at least said control signals;
• sending said substantially constant envelope signals through one or more circuit signal paths, each of said circuit signal paths enabling RF transmission within a respective frequency band;
• amplifying said substantially constant envelope signals using one or more multiple-input-single-output (MISO) amplifiers;
• combining outputs of said MISO amplifiers to create an output signal;
• and
• coupling said output signal to one of a plurality of output paths via a switching stage, wherein said output paths enable transmission in respective bandwidth ranges of a frequency band.

A method for at least one of RF power transmission, modulation, and amplification, comprising:

• generating a plurality of control signals from information;
• generating a plurality of substantially constant envelope signals using at least said control signals;
• sending at least one of said substantially constant envelope signals through a circuit signal path, wherein said circuit signal path enables RF transmission within a frequency band;
• amplifying at least one of said substantially constant envelope signals using a multiple-input-single-output (MISO) amplifier;
• creating an output signal comprising an output of said MISO amplifier;
• and
• coupling said output signal to one of a plurality of output paths via a switching stage, wherein said output paths enable transmission in respective bandwidth ranges of a frequency band.