A microwave rectifier composed of a pair of Schottky diodes with dynamic capacitive self-compensation is proposed in this letter. The impedance of a Schottky diode usually varies with the input power. A method using paired diodes for capacitive self-compensation is presented to enhance the rectifier’s dynamic power range. The imaginary part of one diode’s impedance is compensated using another identical diode with a section of transmission line by impedance transforming. The proposed method reduces the effect of the input power on the diode impedance. An $X$ -band rectifier using a pair of HSMS-286 Schottky diodes based on the proposed method is designed and fabricated. This rectifier, with a dc load of $300~\Omega $ , achieves power conversion efficiency of 64.5% at 9.7 GHz and has a 15.3-dB input power dynamic range with efficiency exceeding 50%. The rectifier is expected to be used in wireless power transmission systems with flexible distance requirements.

中文翻译：

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宽输入功率范围 X带动态电容自补偿的带状整流器

本文提出了一种由一对具有动态电容自补偿功能的肖特基二极管组成的微波整流器。肖特基二极管的阻抗通常随输入功率而变化。提出了一种使用成对二极管进行电容自补偿的方法，以提高整流器的动态功率范围。一个二极管阻抗的虚部使用另一个相同的二极管（具有一部分传输线）通过阻抗变换进行补偿。所提出的方法减少了输入功率对二极管阻抗的影响。一个 $ X $ 基于所提出的方法，设计了一对使用HSMS-286肖特基二极管的宽带整流器。该整流器的直流负载为 $ 300〜\ Omega $ ，在9.7 GHz时达到64.5％的功率转换效率，并具有15.3 dB的输入功率动态范围，效率超过50％。该整流器有望用于具有灵活距离要求的无线电力传输系统中。