电源学报2023，Vol.21Issue(6)：136-143,8.DOI:10.13234/j.issn.2095-2805.2023.6.136
一种频率和功率可调的固态微波功率源
Solid-state Microwave Power Source with Adjustable Frequency and Power
摘要
Abstract
The magnetron is used by most of the existing high-power wireless power transfer(WPT)systems as radio frequency(RF)power supply.However,its narrow bandwidth and big mass are not conducive to system integration despite its high output power.To solve this problem,a solid-state microwave power source(MPS)with adjustable power and frequency was designed,which realized a wide bandwidth range and a wide output power range by using broadband amplifiers and feedback regulation.The system was integrated into a box with a size of 28 cm×19 cm×10 cm,and it had advantages such as a small volume,high reliability,a good heat dispersion performance and a small mass,showing its engineering application value to systems of WPT or RF energy harvesting in the environment(simulating the RF energy generation equipment in the environment,such as a base station and WIFI).Finally,the measurement results at room temperature show that the solid-state MPS designed had an adjustable frequency range of 0.7-2.8 GHz,with a frequency step of 1 MHz and a maximum frequency offset less than 0.3 MHz.In addition,it had an adjustable power range of 20.0-39.5 dBm,with a maximum output power error of±0.5 dB.The design method proposed provides guidance for the study and design of high-power MPSs.关键词
无线能量传输/微波功率源/功率检测/反馈调节Key words
Wireless power transfer(WPT)/microwave power source(MPS)/power detection/feedback regulation分类
信息技术与安全科学引用本文复制引用
赵发定,黄钟..一种频率和功率可调的固态微波功率源[J].电源学报,2023,21(6):136-143,8.基金项目
国家自然科学基金青年项目(62301348) This work is supported by the National Natural Science Foun-dation of China under the grant 62301348 （62301348）
