High-efficiency power modulators

摘要: The present invention, generally speaking, incorporates the power amplifier as a fundamental constituent of modulator, using polar modulation techniques. Thus, it is possible to achieve combination precision signal generation (including envelope variations) along with high energy efficiency in combinations not heretofore. In accordance one embodiment modulated radio (passband) generator produces quality signals general type, which specifically includes varying envelopes. Signals are generated conversion applied DC output RF power. result longer battery life for products such mobile phone handsets. Dramatically improved also allows dramatic reduction (10 1 or greater) size any required heatsink transmitter, significantly lowers both cost and size. Furthermore, continuous operation these transmitters made small temperature rises heatsinks, even without components. This provides operating reliability, well greater throughput due time allowed. Another aspect invention wide bandwidth, need feedback during operation. further reduces costs by greatly simplifying design, manufacturing, complexity transmitter circuitry.