DIELECTRIC PLANAR ANTENNA

摘要

PROBLEM TO BE SOLVED: To obtain an antenna high in mass-productivity and easy in the characteristic adjustment of a product by providing a dielectric block to feed power from the outside on one end of a dielectric substrate, providing a dielectric chip having a dielectric constant different from that of the dielectric substrate on the top surface of the dielectric substrate, providing a metal conductor plate on the bottom surface of the dielectric substrate and radiating the fed power from the top surface of the dielectric substrate. SOLUTION: Electromagnetic waves fed from a power feeding point 41 to the dielectric substrate 1 via the dielectric block 42 are propagated in the (z) direction while most of the power is closed in the dielectric substrate 41. Intensity distribution 52 is formed at this time. When the power to be propagated reaches the dielectric chip 3, a part of the power is radiated in the space. The remaining power except the power radiated in the space at the dielectric chip 3 is propagated in the (z) direction while most of the power is closed in the dielectric substrate 1 and the intensity distribution 52 is formed when the power reaches the dielectric substrate 1 again. Antenna characteristics are determined by combination of the dielectric constants of materials to be used.