A novel integrated rectifier–transmitter (IRT) that targets to reduce the power consumption of the uplink communication of a wireless sensor is presented in this letter. The proposed IRT fully utilizes the second harmonic generated by the rectifier as the uplink carrier and modulates this carrier in amplitude through a reconfigurable bandstop filter (BSF) that is dynamically biased by the uplink baseband signal. As a proof of concept, an IRT prototype operating at 2.4 GHz has been implemented and characterized. We report the power conversion efficiency (PCE) to prove that the modulation does not affect the rectification of IRT. An uplink data rate of 100 kb/s has been demonstrated when the IRT is fed with −20-dBm RF power.

中文翻译：

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利用谐波与集成整流器-发送器的低功率无线上行链路

这封信介绍了一种新颖的集成整流器-发射器（IRT），其目标是减少无线传感器的上行链路通信的功耗。提出的IRT充分利用了整流器产生的二次谐波作为上行链路载波，并通过可重配置的带阻滤波器（BSF）在幅度上调制了该载波，该可重构带阻滤波器受上行链路基带信号动态偏置。作为概念验证，已经实现并表征了工作在2.4 GHz的IRT原型。我们报告了功率转换效率（PCE），以证明调制不会影响IRT的整流。当向IRT馈送-20 dBm RF功率时，已经证明了100 kb / s的上行链路数据速率。