SANDWICH-WIRE ANTENNA DESIGN

摘要

A new microwave line source configuration consists basically of three continuous coplanar conductors. The two outer conductors, parallel to each other, are at ground potential; the excited center conductor is bent into sinusoidal form, with a period (for broadside radiation) equal to the wavelength. The polarization is transverse to the length of the array. Modifications of the basic design include a printed-circuit (metal on dielectric) two-dimensional array fed by a corporate structure feed.nDesign data, including attenuation and phase characteristics, are given for a flat-plate S-band model. An array to fit a cylindrical sur-face is discussed.nThese structures are mechanically simple, have good impedance characteristics, and allow good control over aperture illumination.