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접지된 유전체층 위의 스트립격자의 off-bragg blazing
이종익,조웅희,윤리호,홍재표,박진택,조영기,손현,Lee, J.I.,Cho, U.H.,Yun, L.H.,Hong, J.P.,Park, J.T.,Cho, Y.K.,Son, H. 대한전자공학회 1996 전자공학회논문지-A Vol.33 No.10
A numerical method for scattering of electromagnetic waves from a periodic strip grating over a grounded dielectric slab is considered for TE and TM polarization cases from the viewpoints of both reflection grating problem and leaky wave antenna problem. The analysis is based on a mode expansion method, floquet's theorem, and the method of moments. Numerical results involving some combinations of geometric parameters are presented in terms of complex propagation constant (kd-$\beta$d diagram), radiation pattern, and relative scattered powers of spectral modes. In particular, the relationship between complex propagatio constnat form the viewpoint of leaky wqve antenna problem and Off-bragg and bragg blazing phenomena from the viewpoint of reflecton graing problem is investigated.