A surface integral equation (SIE) technique is developed to analyze the scattering properties of arbitrarily-shaped 1ossy dielectric bodies of revolution. Two coupled vector integral equations formulated via Maxwell's equations, Green's theorem, and the boundary conditions are used. The unknown surface currents (both electric and magnetic) are calculated by, first, Fourier decomposition, and then, the moment method, Galerkin's procedure. The far scattered field and radar cross section (RCS) are then readily determined from the reciprocity theorem and the measurement matrix concept. For a dielectric sphere good agreement is obtained between the SIE and exact solutions. Solutions of a thick dielectric cylinder are next used to demonstrate the arbitrary geometry capability of the SIE method. This method is suitable for homogeneous dielectric bodies and only the axially incident plane wave is considered here. The method also applies for a wide range of dielectric parameters (with E r from 1.44 to 80 and conductivity •r from 0 to 10 3 mho/m).

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A detailed description of frequency‐selective surface (FSS) is provided. Subjects covered include various kinds of FSS and characteristics, bandpass and bandstop FSS, aperture and patch element FSS, thin/thick‐screen FSS, FSS analysis techniques and design tools, dielectric loading effects, grating lobe and Woods anomaly, as well as FSS applications. An FSS bibliography is also provided listing all the references necessary for further research on the subject of FSS.

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A single‐screen double‐square‐loop (DSL) frequency selective surface (FSS) has been developed and tested for triband applications (i.e., to reflect the X‐band and to pass the S‐ and Ku‐band waves). Good agreement between predicted and measured transmission performance is obtained for the DSL FSS on a 0.001‐in.‐thick Kapton with/without a flat Kevlar honeycomb sandwich panel. It is found that this single‐screen DSL FSS with/without the Kevlar honeycomb has a resonant frequency near 8.4 GHz for incident angle steered from normal to 45° and for both TE and TM polarizations.