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RECTENNA CIRCUIT ELEMENTS, CIRCUITS, AND TECHNIQUES FOR ENHANCED EFFICIENCY WIRELESS POWER TRANSMISSION OR AMBIENT RF ENERGY HARVESTING
RECTENNA CIRCUIT ELEMENTS, CIRCUITS, AND TECHNIQUES FOR ENHANCED EFFICIENCY WIRELESS POWER TRANSMISSION OR AMBIENT RF ENERGY HARVESTING
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机译:用于提高效率的无线功率传输或射频能量收集的增强型RECTENNA电路元件,电路和技术
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摘要
A rectenna includes (a) a multi-band multi-channel (MBMC) matching network, and/or (b) an adaptively reconfigurable rectifier or a breakdown-protected rectifier. An MBMC matching network includes a plurality of T-shaped transmission line matching structures coupled in series. An adaptively reconfigurable rectifier circuit includes a low input power rectifying portion, a high high input power rectifying portion, and a set of transistors configured for selectively and automatically transitioning the adaptively reconfigurable rectifier between a low input power operating configuration and a high input RF power operating configuration, in a manner correlated with input RF power level. A breakdown-protected rectifier includes a transistor-protected diode structure having a diode coupled to a transistor in a manner that protects the diode from direct exposure to negative voltages that would ordinarily cause the diode to break down in the absence of the transistor.
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