Patent ID: 6239749
Filing Date: 2001-05-29
Classification: H01Q

Abstract:
A fast-wave resonant antenna with stratified grounding planes, comprising:a fast-wave resonator consisting of first and second portions, the first portion being a medium substrate which is cuboid in shape and the second portion being a metal strip cohering to the surface of said medium substrate, a shape of said cohering metal strip being determined based on a radiation field pattern required and being confined within a small area of said substrate surface, a first end of said metal strip being used to feed in signals and a second end of said metal strip being open;a grounding device located below said fast-wave resonator, said grounding device being cuboid in shape and provided with a plurality of via holes, said via holes having a rectangular shape,wherein a number and size of the via holes having a rectangular shape is determined according to a grounding area required to provide a predetermined structural strength, andwhereby said grounding device provides a considerable area for grounding in a limited space.