Patent ID: 6917263
Filing Date: 2005-07-12
Classification: H01P

Abstract:
1. A high-frequency waveguide comprising: a first high-frequency reflecting wall including dielectric bars having respective lengths, each dielectric bar comprising a plurality of columnar bodies having respective axes and concentrically varying dielectric constants so that the dielectric constant on the respective axes is lower than the dielectric constant spaced from the respective axes, the dielectric bars of the first high-frequency reflecting wall being disposed in plural layers so that respective axes of the dielectric bars of the first high-frequency reflecting wall describe corners of a regular polygon lying in a plane perpendicular to the axes of the dielectric bars of the first high-frequency reflecting wall; a second high-frequency reflecting wall opposite, spaced from, and parallel to the first high-frequency reflecting wall, with a dielectric interposed between the first and second high-frequency reflecting walls, the second high-frequency reflecting wall including dielectric bars having respective lengths, each dielectric bar of the second high-frequency reflecting wall comprising a plurality of columnar bodies having respective axes and concentrically varying dielectric constants so that the dielectric constant on the respective axes is lower than the dielectric constant spaced from the respective axes, the dielectric bars of the second high-frequency reflecting wall being disposed in plural layers so that respective axes of the dielectric bars of the second high-frequency reflecting wall describe corners of a regular polygon in a plane perpendicular to the respective axes of the dielectric bars of the second high-frequency reflecting wall; and conductive plates which are opposite each other, with the first and second high-frequency reflecting walls interposed between the conductive plates and end faces of the dielectric bars of the first and second high-frequency reflecting walls connected to the conductive plates.