一維菲涅爾區(qū)相位修正平面反射器的聚焦特性研究
RESEARCH ON THE CAUSTIC CHARACTERISTICS OF ONE DIMENSIONAL FRESNEL ZONE PHASE CORRECTED PLATE REFLECTOR
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摘要: 在平面上沿某一個(gè)方向進(jìn)行1/P波長(zhǎng)的相位修正,可以構(gòu)成一維菲涅爾區(qū)相位修正平面。由此而得到的平面反射器可作為拋物柱面反射器的替代物來(lái)構(gòu)成扇形波束天線。本文用物理光學(xué)法分析了平面波入射時(shí)該結(jié)構(gòu)的聚焦特性,并給出了一組焦散區(qū)場(chǎng)分布的數(shù)值計(jì)算結(jié)果。
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關(guān)鍵詞:
- 反射面天線; 聚焦特性; 菲涅爾區(qū)相位修正平面; 扇形波束天線
Abstract: One dimensional Fresnel zone phase corrected plate (1-DFP) can be made by a 1/P wavelength phase correcting along one dimension upon the plate. When it is used as a reflector, it gives an alternative to parabolic cylinder reflector in application on fan-beam antenna. In this paper, Physical Optics (PO) is used in analyzing the caustic characteristics of 1-DFP reflector with plane wave illumination. Numerical results of a series of fields in caustic are also presented. -
Garrett J E Wiltse J C. Inc[J].J. Infrared MM Waves.1991, 12(3):195-220[2]Buder B, Menzel W. Electronics Lett., 1988, 24(6):318-319.[3]Guo Y J, Barton S K, Wrighr T M B. Design of High Efficiency Fresnel Zone Plate Antennas, IEEE AP-S91, USA: Vol.1,1991, 182-185.[4]Delmas J J. TDF Antenna for Multisatellite Reception Using Fresnel Principle in Three Dimensions, Proc. 1SAP92, Japan: 1992, 321-324. -
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