发表机构
LAAS-CNRS, Université de Toulouse（图卢兹大学 LAAS-CNRS 实验室）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
提出一种由两位数字信号控制的双极化背散射整流天线，兼具能量采集与背散射调制功能，并通过集成无电池传感器验证了其可增强BLE设备安全性。
AI 中文摘要
本文提出了一种创新的双极化背散射整流天线，该天线在两位数字控制信号的驱动下，可在两种不同模式下工作：能量采集模式和背散射调制模式。通过利用两个正交（同极化和交叉极化）极化，该设计成为物联网应用（如无电池无线传感、识别、定位和通信）的多功能候选方案。该整流天线的双重功能通过将其集成到概念验证的无电池无线传感器中得到验证，在该传感器中，它既作为能量采集器，又作为双极化背散射调制器运行。作为概念验证，一个16字节的AES-128加密有效载荷通过无线能量传输链路进行背散射，以增强无电池蓝牙低功耗（BLE）无线传感器抵御重放、中继和窃听攻击的能力。
英文摘要
This paper proposes an innovative dual-polarized backscattering rectenna that operates in two distinct modesenergy harvesting and backscattering modulation-driven by two-bit digital control signals. By utilizing two orthogonal (co-and cross-) polarizations, the design represents a versatile candidate for IoT applications such as battery-free wireless sensing, identification, localization, and communication. The rectenna's dual functionality is validated through its integration into a proofof-concept battery-free wireless sensor, where it operates both as an energy harvester and as a dual-polarized backscattering modulator. As a proof of concept, a 16-byte AES-128 encrypted payload is backscattered over the wireless power transfer link to enhance the resilience of a battery-free Bluetooth Low Energy (BLE) wireless sensor against replay, relay, and eavesdropping attacks.
Journal ref2026 IEEE MTT-S Radio Frequency Systems and Applications Symposium (IMS RFSA), Jun 2026, Boston, MA, United States. pp.272-275
