Surface wave diffraction by a finite metal grating and numerical model for design of leakywave antennas
Abstract
The electrodynamic problem of surface wave diffraction by a finite grating made of thin metal rods and placed on the dielectric plate is studied. Green's function of a dielectric slab situated on a metal substrate is used for mathematics. The system of algebraic linear equations in unknown complex amplitudes of currents in the rods is obtained in a particular case of normal incidence of the traveling wave on the grating. The effective algorithm for numerical investigation of all diffraction characteristics of the structure is also elaborated. An example of the diffraction model application for design of a leakywave antenna in millimeter waveband is presented.
 Publication:

IEEE Microwave and Guided Wave Letters
 Pub Date:
 October 1991
 Bibcode:
 1991IMGWL...1..282K
 Keywords:

 Antenna Design;
 Antenna Radiation Patterns;
 Gratings (Spectra);
 Surface Waves;
 Wave Diffraction;
 Dielectrics;
 Green'S Functions;
 Mathematical Models;
 Quantum Electrodynamics;
 Electronics and Electrical Engineering