高效平面印刷毫米波段整流电路设计与实验  

Design and experiment of a planar printed rectifying circuit operated in millimeter wave

作　　者：谭冠南[1] 杨雪霞[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《电波科学学报》2015年第6期1131-1136,共6页Chinese Journal of Radio Science

基　　金：国家自然科学基金(61271062)

摘　　要：利用微带线设计了一种Ka波段毫米波整流电路.整流电路由输入阻抗匹配网络、整流二极管及输出直通滤波器构成,输入端口为50Ω微带线,便于实验及与天线集成.利用等效电路模型理论分析了肖特基二极管在Ka波段的整流特性,设计并加工电路.实验测得,在32.5GHz工作频率和20dBm输入功率下,整流电路在350Ω负载上获得57%的毫米波直流(MMW-DC)转换效率;在输入功率大于8dBm时,整流效率均大于30%.该整流电路采用传统的印制电路板(Printed Cireuit Board,PCB)制作工艺,具有造价低和易集成等优点,且整流效率高,可应用到毫米波无线输能系统中.A millimeter wave rectifying circuit operating at Ka-band using microstrip lines is presented in this paper. The rectifying circuit consists of an impedance matching circuit, rectifying diode and a DC-pass filter. The input port of the circuit is designed as a 50 Ω microstrip line so it is easy for the circuit to be tested and integrated with an antenna. The operation characteristic of the rectifying diode at Kaband is analyzed by the theory of equivalent circuit model. The rectifying circuit is designed and fabricated. The measured results show that the rectifying circuit obtains 57% millimeter wave-DC (MMW-DC) conversion efficiency on the load of 350 Ω when the operation frequency is 32.5 GHz and the input power is 20 dBm. The conversion efficiencies are all above 30% when the input power is higher than 8 dBm. The proposed rectifying circuit is fabricated by traditional PCB process, which has advantages of low cost, ease of integration. This high efficiency rectifying circuit could be applied in millimeter wireless power transmission systems. Copyright © 2015 by Editorial Department of Chinese Journal of Radio Science

关 键 词：天线输能 整流电路 整流效率 毫米波 

分 类 号：TM461[电气工程—电器]