Antenna device and radar device

摘要

An antenna device according to an embodiment includes a dielectric substrate, a housing, and an interference prevention unit. On the top surface side of the dielectric substrate, a plurality of antennas is formed, and on the bottom surface side, a ground is formed, each as a conductive thin film pattern, respectively. The housing is formed of a conductive material, and formed to have a shape configured to function as a waveguide, and the top surface side of the housing is bonded to the bottom surface side of the dielectric substrate. The interference prevention unit is formed between the neighboring antennas to include at least a groove provided on the top surface side of the housing and a slit provided on the ground in the portion corresponding to the groove.

主权项

1. An antenna device comprising:
a dielectric substrate on which top surface side a plurality of antennas is formed and on which bottom surface side a ground is formed, each as a conductive thin film pattern, respectively; a housing which is formed of a conductive material and formed to have a shape configured to function as a waveguide, and configured that a top surface side thereof is bonded to a bottom surface side of the dielectric substrate; and an interference prevention unit which is formed between the neighboring antennas to include a groove provided on a top surface side of the housing, and a slit provided in a portion of the ground, which portion corresponding to the groove in an area which is different from an area having the shape configured to function as the waveguide of the housing.