Patent ID: 6919848

Claim:
An antenna apparatus for a vehicle, said antenna apparatus being provided on the vehicle in which at least a part of constituent members of the vehicle is made of an electrically non-conductive material, and an earthed conductor on a part of a vehicle body is included, wherein the antenna apparatus has at least one non-earthed type antenna, wherein said non-earthed type antenna is provided with a first element connected to an inner conductor of a first coaxial line via a first connection point, and a second element connected to an outer conductor of said first coaxial line via a second connection point, wherein the antenna apparatus further has at least one earthed type antenna, wherein said earthed type antenna is provided with a third element connected to an inner conductor of a second coaxial line via a third connection point, and an outer conductor of said second coaxial line is earthed at an earthed portion on the earthed conductor, wherein at least said first, second and third elements and said first, second and third connection points are arranged in a portion which is inside the constituent member made of said electrically non-conductive material and is apart from the earthed conductor, and wherein at least a part of the first coaxial line and the second coaxial line are provided close to each other, and the second coaxial line is structured such that the inner conductor is covered with the outer conductor at least a part of a range from earthed portion to the third connection point.