ANTENNA DEVICE AND ARRAY ANTENNA DEVICE

摘要

An antenna device includes: a cavity part 1 composed of a metal conductor having an opening closed in a bottom; a first excitation circuit 10 superposed and disposed on the upper surface of the cavity part 1, and including inside thereof a first power feeding probe 13 and a first transmission line 14 that feeds electric power to the first power feeding probe 13, and radiating a radio wave of a first polarized wave; and a second cavity part 30 and a third cavity part 50 superposed and disposed on the upper surface of the first excitation circuit 10, and composed of a metal conductor having open holes, and further includes, above the first excitation circuit 10, a matching element 45 composed of a conductor.

主权项

1. An antenna device comprising:
a cavity composed of a metal conductor having an opening closed in a bottom; a first excitation circuit superposed and disposed on an upper surface of the cavity, including inside thereof a first power feeding probe and a first transmission line that feeds electric power to the first power feeding probe, and radiating a radio wave of a first polarized wave; and a radiator superposed and disposed on an upper surface of the first excitation circuit, and composed of a metal conductor having an open hole, the antenna device further comprising a first matching element composed of a conductor above the first excitation circuit; and between the first excitation circuit and the radiator, a second excitation circuit including inside thereof a second power feeding probe and a second transmission line that feeds electric power to the second power feeding probe, and radiating a radio wave of a second polarized wave orthogonal to the first polarized wave.