[2] [2] SAUNDERS R W, HEWISON T J, STRINGER S J, et al. The radiometric characterization of AMSU-B[J]. IEEE Transactions on Microwave Theory and Techniques, 1995,43(4):760-771.) doi:10. 1109/22.375222.

[3] [3] GONZALEZ A, UZAWA Y, FUJII Y, et al. ALMA band 10 tertiary optics[J]. Infrared Physics & Technology, 2011, 54(6): 488-496. doi:10. 1016/j.infrared.2011.07.007.

[5] [5] OLDFIELD M, MOYNA B, ALLOUIS E, et al. MARSCHALS: development of an airborne millimetre wave limb sounder[J]. Proceedings of SPIE, 2001(4540):221-228. doi:10. 1117/ 12.450663.

[6] [6] YU Junsheng, LIU Shaohua, XU Liang, et al. Study of a two-layer dichroic for quasioptical network[J]. Microwave and Optical Technology Letters, 2010,52(4):900-904. doi:10. 1002/mop.25075.

[8] [8] MUNK B A. Frequency selective surfaces:theory and design[M]. New York:John Wiley, 2000.

[10] [10] DICKIE R,CAHILL R,FUSCO V,et al. THz frequency selective surface filters for earth observation remote sensing instruments[J]. IEEE Transactions on Terahertz Science and Technology, 2011, 1(2):450-461. doi:10. 1109/TTHZ.2011.2129470.

[11] [11] LIU Xiaoming, WANG Yumin, ZHANG Tao, et al. A compact multiband quasi-optical system for plasma detection[J]. IEEE Transactions on Antennas and Propagation, 2020,68(6):4916-4924. doi:10. 1109/TAP.2020.2970126.

[13] [13] GOLDSMITH P F. Quasioptical systems:Gaussian beam quasioptical propagation and applications[M]. New York: IEEE Press, 1998.