{"title":"用于冰盖雷达探测和成像的超宽带功率放大器","authors":"J. Yan, S. Gogineni, J. Nunn","doi":"10.1109/EDSSC.2017.8126548","DOIUrl":null,"url":null,"abstract":"Airborne ultrawideband radars operating at VHF/UHF frequencies can be used to sound and image polar ice sheets with fine-resolution. The sensitivity of the radar depends upon the power-aperture product. High peak power coupled with a large aperture is required to sound more than 4-km thick ice. In this paper, we present the design of a 400-W power amplifier for operation over the frequency range of 150–550 MHz. The amplifier uses gallium-nitride (GaN) high-electron-mobility transistors (HEMTs) manufactured by Cree. The primary design goals are to maximize the output power and gain while minimizing the harmonic levels. To achieve these, a push-pull configuration with quadrature combining is implemented.","PeriodicalId":163598,"journal":{"name":"2017 International Conference on Electron Devices and Solid-State Circuits (EDSSC)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ultrawideband power amplifier for radar sounding and imaging of ice sheets\",\"authors\":\"J. Yan, S. Gogineni, J. Nunn\",\"doi\":\"10.1109/EDSSC.2017.8126548\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Airborne ultrawideband radars operating at VHF/UHF frequencies can be used to sound and image polar ice sheets with fine-resolution. The sensitivity of the radar depends upon the power-aperture product. High peak power coupled with a large aperture is required to sound more than 4-km thick ice. In this paper, we present the design of a 400-W power amplifier for operation over the frequency range of 150–550 MHz. The amplifier uses gallium-nitride (GaN) high-electron-mobility transistors (HEMTs) manufactured by Cree. The primary design goals are to maximize the output power and gain while minimizing the harmonic levels. To achieve these, a push-pull configuration with quadrature combining is implemented.\",\"PeriodicalId\":163598,\"journal\":{\"name\":\"2017 International Conference on Electron Devices and Solid-State Circuits (EDSSC)\",\"volume\":\"119 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2017 International Conference on Electron Devices and Solid-State Circuits (EDSSC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EDSSC.2017.8126548\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 International Conference on Electron Devices and Solid-State Circuits (EDSSC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EDSSC.2017.8126548","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Ultrawideband power amplifier for radar sounding and imaging of ice sheets
Airborne ultrawideband radars operating at VHF/UHF frequencies can be used to sound and image polar ice sheets with fine-resolution. The sensitivity of the radar depends upon the power-aperture product. High peak power coupled with a large aperture is required to sound more than 4-km thick ice. In this paper, we present the design of a 400-W power amplifier for operation over the frequency range of 150–550 MHz. The amplifier uses gallium-nitride (GaN) high-electron-mobility transistors (HEMTs) manufactured by Cree. The primary design goals are to maximize the output power and gain while minimizing the harmonic levels. To achieve these, a push-pull configuration with quadrature combining is implemented.
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