{"title":"用于微波无线功率传输的GaN HEMT高效放大器","authors":"Y. Yamaguchi, M. Hangai, K. Yamanaka, Y. Homma","doi":"10.1109/RFIT.2015.7377932","DOIUrl":null,"url":null,"abstract":"In this paper, GaN HEMT high efficiency amplifier for Microwave Wireless Power Transmission (MWPT) is presented. The effects of harmonic of 0.7μm and 0.25μm gate length GaN HEMTs were measured by harmonic load-pull measurement. In the measurement, it was revealed that the 0.25μm gate device included higher harmonics than 0.7μm gate device. It is because cuf-off frequency of 0.25μm gate device is higher than 0.7μm gate device. 0.25μm short gate length GaN HEMT which has 25GHz high cut-off frequency was used for amplifier. The matching circuit was designed so that 2nd and 3rd harmonics are tuned to obtain maximum power added efficiency (PAE). PAE of 75% was successfully obtained with 7W output power at 5.8GHz.","PeriodicalId":422369,"journal":{"name":"2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"GaN HEMT high efficiency amplifier for Microwave Wireless Power Transmission\",\"authors\":\"Y. Yamaguchi, M. Hangai, K. Yamanaka, Y. Homma\",\"doi\":\"10.1109/RFIT.2015.7377932\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, GaN HEMT high efficiency amplifier for Microwave Wireless Power Transmission (MWPT) is presented. The effects of harmonic of 0.7μm and 0.25μm gate length GaN HEMTs were measured by harmonic load-pull measurement. In the measurement, it was revealed that the 0.25μm gate device included higher harmonics than 0.7μm gate device. It is because cuf-off frequency of 0.25μm gate device is higher than 0.7μm gate device. 0.25μm short gate length GaN HEMT which has 25GHz high cut-off frequency was used for amplifier. The matching circuit was designed so that 2nd and 3rd harmonics are tuned to obtain maximum power added efficiency (PAE). PAE of 75% was successfully obtained with 7W output power at 5.8GHz.\",\"PeriodicalId\":422369,\"journal\":{\"name\":\"2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)\",\"volume\":\"92 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/RFIT.2015.7377932\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RFIT.2015.7377932","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
GaN HEMT high efficiency amplifier for Microwave Wireless Power Transmission
In this paper, GaN HEMT high efficiency amplifier for Microwave Wireless Power Transmission (MWPT) is presented. The effects of harmonic of 0.7μm and 0.25μm gate length GaN HEMTs were measured by harmonic load-pull measurement. In the measurement, it was revealed that the 0.25μm gate device included higher harmonics than 0.7μm gate device. It is because cuf-off frequency of 0.25μm gate device is higher than 0.7μm gate device. 0.25μm short gate length GaN HEMT which has 25GHz high cut-off frequency was used for amplifier. The matching circuit was designed so that 2nd and 3rd harmonics are tuned to obtain maximum power added efficiency (PAE). PAE of 75% was successfully obtained with 7W output power at 5.8GHz.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
