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| RADIATION FROM THE CRYOGENIC CALIBRATION LOAD FOR MICROWAVE RADIOMETERS | |
| 引用本文： | Lu Ying Guo Wei Zhang Zuyin(Huazhong University of Science and Technology,Wuhan 430074). RADIATION FROM THE CRYOGENIC CALIBRATION LOAD FOR MICROWAVE RADIOMETERS[J]. 电子科学学刊(英文版), 1998, 15(2): 182-186. DOI: 10.1007/s11767-998-0054-3 |
| 作者姓名： | Lu Ying Guo Wei Zhang Zuyin(Huazhong University of Science and Technology Wuhan 430074) |
| 作者单位： | Huazhong University of Science and Technology，Wuhan 430074 |
| 摘 要： | A styrofoam layer is introduced to the cryogenic calibration load for microwave radiometers in order to keep the antenna at ambient temperature while calibrating. Obviously the insulation layer has nonuniform temperature profile. A novel approach based on the transmission-line theory is presented to calculate the emission from the load. According to the sample calculation through this new approach, the contribution of the insulation layer to the load radiation can not be neglected. |
Radiation from the cryogenic calibration load for microwave radiometers |
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| Ying Lu,Wei Guo,Zuyin Zhang. Radiation from the cryogenic calibration load for microwave radiometers[J]. Journal of Electronics, 1998, 15(2): 182-186. DOI: 10.1007/s11767-998-0054-3 | |
| Authors: | Ying Lu Wei Guo Zuyin Zhang |
| Affiliation: | (1) Huazhong University of Science and Technology, 430074 Wuhan |
| Abstract: | A styrofoam layer is introduced to the cryogenic calibration load for microwave radiometers in order to keep the antenna at ambient temperature while calibrating. Obviously the insulation layer has nonuniform temperature profile. A novel approach based on the transmission-line theory is presented to calculate the emission from the load. According to the sample calculation through this new approach, the contribution of the insulation layer to the load radiation can not be neglected. |
| Keywords: | Cryogenic calibration load Layered media Brightness temperature |
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