摘要
提出了一种由双T型短路匹配枝节、整流二极管和直通滤波器组成的低功率微带线整流电路。采用具有低导通电压的HSMS-2850二极管,使电路可工作于低输入功率条件;双T型阻抗匹配网络使电路具有宽频工作特性,输出端的直通滤波器用于抑制基波和高次谐波,以提高整流效率。ADS仿真和测试结果的趋势吻合。实测结果表明：整流电路在2.12-2.42GHz带宽内最高整流效率为56.2%,效率大于40%的相对带宽约15%;且在-13-5dBm的宽输入功率范围内,2.4GHz中心频点处的整流效率大于40%,该整流电路具有宽频、低/宽输入功率特性,可用于RFID、无线传感器等电子设备的无线供能。
A microstrip rectifying circuit for wide and low-input power has been proposed.The rectifying circuit consists of a double T-shape short-circuit matching stub,rectifying diode and a DC-pass filter.The HSMS-2850 diode with a low turn-on voltage make the circuit work on low-input power conditions.The dual T-shape impedance matching network expends operation bandwidth.The DC-pass filter at the output port suppress the fundamental and higher order harmonics to improve the rectifying efficiency.The trend of measured results agree well with the simulated one by the ADS software.The experimental results show that the maximum rectifying efficiency is 56.2% within 2.12~2.42 GHz bandwidth,and the relative bandwidth with the rectifying efficiency higher than 40% is about 15%.Moreover,the efficiencies at 2.4 GHz are all above 40% when the input power range is-13~5 dBm.The rectifying circuit has the characteristics of broadband,wide-and low-input power,which can be applied to power RFID systems and wireless sensors.
作者
郭振跃
杨雪霞
周华伟
Guo Zhenyue;Yang Xuexia;Zhou Huawei(School of Communication and Information Engineering,Shanghai University,Shanghai 200444,China)
出处
《电子测量技术》
2018年第15期30-34,共5页
Electronic Measurement Technology
关键词
宽频
整流电路
低功率
整流效率
无线输能
功率范围
broadband
rectifying circuit
low power
rectifying efficiency
wireless power transmission
power range
