Long-Distance Passive Sensing Tag Design Based on Multi-Source Energy Harvesting and Reflection Amplification
Gang Li,
Chong Pan,
Bo Wu,
Zhiliang Xu,
Shihua Li,
Yehua Zhang,
Yongjun Yang,
Zhuohang Zou,
Chang Shi,
Muze Wang
Affiliations
Gang Li
Ji An Electronics Integrated Circuit and Communication Transmission Laboratory Technology Co., Ltd., Ji’an 343000, China
Chong Pan
State Grid Sichuan Electric Power Company, Chengdu Power Supply Company, Chengdu 610041, China
Bo Wu
Ji An Electronics Integrated Circuit and Communication Transmission Laboratory Technology Co., Ltd., Ji’an 343000, China
Zhiliang Xu
Ji An Electronics Integrated Circuit and Communication Transmission Laboratory Technology Co., Ltd., Ji’an 343000, China
Shihua Li
Ji An Electronics Integrated Circuit and Communication Transmission Laboratory Technology Co., Ltd., Ji’an 343000, China
Yehua Zhang
Ji An Electronics Integrated Circuit and Communication Transmission Laboratory Technology Co., Ltd., Ji’an 343000, China
Yongjun Yang
Ji An Electronics Integrated Circuit and Communication Transmission Laboratory Technology Co., Ltd., Ji’an 343000, China
Zhuohang Zou
Centre for RFIC and System, School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Chang Shi
Centre for RFIC and System, School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Muze Wang
School of Integrated Circuit Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Wireless sensor networks often rely on battery power, which incurs high costs, considerable volume, and a limited lifespan. Additionally, the communication range of existing passive sensor tags remains short, which challenges their suitability for evolving Internet of Things (IoT) applications. This paper, therefore, presents a long-distance passive RFID sensing tag that integrates multi-source energy harvesting and reflection amplification. Multi-source energy harvesting enhances tag receiving sensitivity and extends the system’s downlink communication distance, while reflection amplification increases tag reflection power and improves the uplink communication distance, thereby significantly expanding the overall communication range. The test results show that the tag achieves a receiving sensitivity of −45 dBm, a reflection gain of 44 dB, and a communication distance of up to 96 m.
