FREQUENCY-SELECTING MIRROR SURFACE

摘要

PROBLEM TO BE SOLVED: To obtain a frequency-selecting mirror surface which has a wide resonance frequency band or more than one resonance frequency band by a single layer without generating grating lobes. SOLUTION: This frequency selecting mirror surface constituted by periodically arranging resonance elements 3 each composed of a curved or flat dielectric 1 and metal foils 2a and 2b arranged on the surface of the dielectric 1 is provided with arrayed resonance elements 3 of different kinds in different shapes, so that the same kind of elements have the same arrangement period and different kind of elements have different arrangement periods. Consequently, the frequency-selecting mirror surface is able to have a wide resonance frequency band or more than one resonance frequency band by one layer without generating grating lobes.