RF energy recovery system

摘要

An energy recovery system is provided that can be used in place of a resistive termination. The energy recovery system can simulate the behavior and performance of a resistive termination, while recovering at least some of the energy that would otherwise have been dissipated within the termination. In one embodiment, the energy recovery system includes a rectification system having a plurality of tuned rectifier circuits and an RF input network to provide input power distribution to the plurality of tuned rectifier circuits and input impedance shaping to shape the collective input impedance of the plurality of tuned rectifier circuits as seen at the RF input port of the RF input network.

主权项

1. An energy recovery system to simulate behavior of a resistive termination for a radio frequency (RF) circuit coupled to the energy recovery system, the energy recovery system comprising:
a rectification system having a plurality of tuned rectifier circuits and a plurality of rectifier input ports corresponding to the plurality of tuned rectifier circuits, the rectification system to rectify RF energy received at the plurality of rectifier input ports to generate a direct current (dc) signal at one or more rectifier output ports; an RF input network having an RF input port and multiple RF output ports, the RF input port forming an input of the energy recovery system and the multiple RF output ports being coupled to the plurality of rectifier input ports of the rectification system, the RF input network to provide input power distribution to the plurality of tuned rectifier circuits and input impedance shaping to shape the combined input impedance of the plurality of tuned rectifier circuits as seen at the RF input port of the RF input network; and a dc-dc converter system having an energy recovery input port and a dc output port, the energy recovery input port of the dc-dc converter system coupled to the output port of at least one rectifier to convert rectified power to a useable dc output voltage, wherein the voltage at the energy recovery input port of the dc-dc converter system is regulated.