ON-VEHICLE ANTENNA DEVICE

摘要

PROBLEM TO BE SOLVED: To inhibit the performance deterioration of a circuit part while securing a design of a housing in an on-vehicle antenna device where a frequency of a used electric wave is high.SOLUTION: An on-vehicle antenna device (20) includes: a base (22) attached to a roof (11) of a vehicle (10); a substrate (24) which has an antenna element part (26) and is erected on one surface of the base (22) so that a second direction that is its plate thickness direction differs from a first direction perpendicular to the one surface (22a) of the base (22); a circuit part (30) which forms at least a part of a radio communication circuit electrically connected with the antenna element part (26); and a housing (32) formed by a resin material and forming a protruding part of a vehicle outline. The substrate (24) and the circuit part (30) are housed in a space formed by the base (22) and the housing (32). The circuit part (30) is mounted on the substrate (24) at a position separated from the base (22) in the first direction.