Author:
Lee Tae-Bong,Kim Min-Nyeon
Abstract
Purpose
– The purpose of this paper is to analyze far and near field emitted field patterns through more exact calculation of the modes formed in finite periodic dielectric gratings.
Design/methodology/approach
– For the mode calculation, equations are newly defined by applying vertical boundary condition on the assumption that transverse electric modes are generated in the structure. After finding modes, near field patterns are calculated using the wave number and coefficient of the mode.
Findings
– Additionally, the results from these calculations are compared with that of the rigorous-coupled method. Finally, far field patterns are derived by applying fast Fourier transform to near field patterns and also compared with the results of rigorous-coupled method.
Research limitations/implications
– For convenience of coordinate, we use rectangular coordinate, though the shape of radome is a hemisphere.
Practical implications
– In this paper, the authors derive more exact near field patterns without the assumption of infiniteness so that these results can be used practically for a making real frequency-selective structure.
Originality/value
– Conventional periodic finite dielectric gratings analysis has been done using Floquet–Bloch wave theory, coupled-mode, rigorous-coupled method which is based on the assumption of infiniteness of the structure.
Subject
General Computer Science,Information Systems
Reference14 articles.
1. Altintas, A.
,
Ouardani, S.
and
Yurchenko, V.B.
(1999), “Complex source radiation in a cylindrical radome of metal-dielectric grating”,
IEEE Transactions Antennas and Propagation
, Vol. 47 No. 8, pp. 1293-1300.
2. Bertoni, H.L.
,
Cheo, L.S.
and
Tamir, T.
(1989), “Frequency-selective reflection and transmission by periodic dielectric layer”,
IEEE Transactions
, Vol. 37 No. 1.
3. Edenhofer, P.
and
Alpaslan, A.
(2005), “Active frequency selective surfaces for antenna applications electronically to control phase distribution and reflective/transmissive amplification”, Proceedings IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 3-7 April, pp. 237-240.
4. Hill, K.O.
and
Meltz, G.
(1997), “Fiber Bragg grating technology fundamentals and overview”,
IEEE Journal of Lightwave Technology
, Vol. 15 No. 8, pp. 1263-1276.
5. Hook, M.
and
Ward, K.
(2004), “A Project to demonstrate the ability of frequency selective surfaces and structures to enhance the spectral efficiency of radio systems when used within buildings”, Ofcom ref. AY4462A.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献