A Scalable High-Gain and Large-Beamwidth mm-wave Harvesting Approach for 5G-powered IoT
A Scalable High-Gain and Large-Beamwidth mm-wave Harvesting Approach for 5G-powered IoT
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适用于 5G 物联网的可扩展高增益和大波束宽度毫米波采集方法
DOI：
10.1109/mwsym.2019.8700758
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
M. Tentzeris
中科院分区：
文献类型：
--
作者：
A. Eid;J. Hester;M. Tentzeris
在这项工作中，作者首次展示了基于罗特曼透镜的整流天线系统在28 GHz频段的毫米波收获的实现。该结构融合了独特的射频和直流组合技术，实现了高增益和大束宽的不同组合。基于罗特曼透镜的整流天线包括天线、整流器、罗特曼透镜和功率合成网络，其设计是首次提出的，性能是实验表征和验证的。然后，制造和测试的设备，并提出了一个参考设计，包括直流组合阵列的等孔径整流天线。新型的基于罗特曼的整流天线收集器显示出与其参考对应物相比，收集功率增加了21倍，而其角度覆盖范围保持不变。因此，该结构展示了高增益和大波束宽度的惊人组合，从而可能使被动远程毫米波RFID的出现成为可能。
In this effort, the authors demonstrate for the first time the implementation of a Rotman-Lens-based rectenna system for mm-wave harvesting, in the 28 GHz band. The structure merges unique RF and DC combination techniques, for the realization of rectennas that display the unlike combination of high gain and large beamwidth. The Rotman-lens-based rectenna includes components–antennas, rectfiers, Rotman lens, and power combining network–whose design is first presented and performance is experimentally characterized and verified. Then, the fabrication and testing of the device, and that of a reference design–comprising a DC-combined array of rectennas of equal aperture–is presented. The novel Rotman-based rectenna harvester shows a 21-fold increase in the harvested power compared to its reference counterpart, while its angular coverage remains identical. The structure, therefore, demonstrates the surprising combination of high-gain and large beamwidth, thereby potentially enabling the emergence of passive long-range mm-wave RFIDs.