Millimeter-Wave Tracker Circuit for Shared PA Supply Modulation

The patent combines multiple power amplifiers and their associated voltage generation circuits into a single integrated circuit. The voltage generation circuit generates multiple discrete voltages that are supplied to multiple power amplifiers through a supply modulator, merging what would traditionally be separate circuits into one compact unit. This resolving the contradiction by achieving both improved power-added efficiency through multiple PAs and reduced circuit size through integration.

The integrated circuit is designed with universal functionality to handle multiple power amplifiers simultaneously. The voltage generation circuit can generate multiple discrete voltage levels, and the supply modulator can selectively supply appropriate voltages to different power amplifiers based on signal requirements. This multi-functional design allows the single circuit to serve multiple amplification functions while maintaining compact size.

The patent merges the voltage generation functionality into a single integrated circuit that serves all power amplifiers. The voltage generation circuit generates multiple discrete voltages, and the supply modulator manages distribution to multiple PAs through selective switching. This consolidation reduces the number of separate components and simplifies the overall system architecture, making miniaturization feasible while managing complexity.

The supply modulator acts as an intermediary between the voltage generation circuit and multiple power amplifiers. It selectively switches and distributes the appropriate voltage levels to each PA based on their specific requirements. This intermediary component simplifies the management of multiple amplifiers by providing a centralized control mechanism that can be integrated into a compact design.