原文传递
Complex Permittivities of Candidate Radome Materials at W-band
| 题名： | Complex Permittivities of Candidate Radome Materials at W-band |
| 作者： | Cravey, Robin |
| 关键词： | w-band；material；perm；dida；comp；date；andi；measurement；ermi；reflection |
| 摘要： | This report presents the results of w-band complex permittivity measurements performed in NASA Langley's Electromagnetics Research Branch. The test articles included in the permittivity study were flat panels of materials which are under consideration for use in a radome for the Passive Millimeter Wave Camera (PMMWC) flight experiment. This experiment is scheduled to fly on the Air Force's 'Speckled Trout' aircraft in late 1997. The radome design is very important because the PMMWC can tolerate only a small amount of electromagnetic loss through the radome. A free space measurement system was used to obtain complex reflection and transmission coefficients of the samples. The frequency of interest was 89 GHz, so measurements were performed over a range of 79 to 99 GHz. The transmission and reflection coefficients were used, along with the measured sample thickness, to calculate complex permittivity over the frequency range. The material samples measured in this study can be divided into four categories skin materials, core materials, coating materials, and layered samples. |
| 报告类型： | 科技报告 |
相关文献
- Millimeter-Wave Radar Field Measurements and Inversion of Cloud Parameters for the 1999 Mt. Washington Icing Sensors Project
- Theoretical and Experimental Investigation of Second-Order Atmospheric Effects Impairing W-Band SatCom Systems.
- Radar multipath study for rain-on-radome experiments at the Aircraft Landing Dynamics Facility
- Meeting on flows of granular materials in complex geometries
- Fusing Multiple Sensor Modalities for Complex Physiological State Monitoring.
- Comparison of Profiling Microwave Radiometer, Aircraft, and Radiosonde Measurements From the Alliance Icing Research Study (AIRS)
检索历史
应用推荐
