NSSC OpenIR  > 微波遥感部
Alternative TitleQuasi-Optical Antennas Design in the Standard Measurement Facility on the Emissivity from Microwave Calibration Targets
李彬; 金铭; 白明; 李志平
Source Publication宇航计测技术
Keyword微波黑体定标源 双站散射测量 准光天线 仿真分析
Other AbstractThe aperture antenna design in the near field scattering measurement is addressed,for developing the standard measurement facility on the microwave emissivity of calibration targets. In this standard facility,the emissivity from calibration targets is to be obtained based on the Kirchhoff's laws of thermal equilibrium,that means by obtaining electromagnetic scattering in a bi-static measurement configuration the electromagnetic reflectivity is inferred for determining the emissivity.Actually,to fulfill the task within a limited measurement space and in high frequency bands,the antennas to be used as transmitter and receiver have to be optimistically designed.The Quasi-Optic antennas are introduced for the scattering measurements of calibration targets.Furthermore,with help of commercial simulation software FEKO,the full-link simulations from the transmitter to targets then to the receiver are conducted for analysis. The results show that: by using antennas of Quasi-Optic design,the illumination at the target zone can be focused with an edge attenuation,also to be flat in phase distribution.As a result,the power transmitting attenuation can be greatly reduced,and it is allowed to approximately obtain the far-field scattering characteristics of the calibration targets which is very important to infer the reflectivity based on limited measured scattering. After all,the simulation results verified the design principle and application performance of the antenna designs for the standard facility of the microwave emissivity.Also the proposed design can be a reference for antenna designs in general near-field test system developments.
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Document Type期刊论文
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GB/T 7714
李彬,金铭,白明,等. 微波黑体发射率计量标准装置的准光照射天线设计[J]. 宇航计测技术,2018,38(6):9-15.
APA 李彬,金铭,白明,&李志平.(2018).微波黑体发射率计量标准装置的准光照射天线设计.宇航计测技术,38(6),9-15.
MLA 李彬,et al."微波黑体发射率计量标准装置的准光照射天线设计".宇航计测技术 38.6(2018):9-15.
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