A connector, comprising: a holder portion, suitable for being attached to a glass antenna on a substrate, the holder portion including: a feeding terminal; an earth terminal; and a pickup portion, detachably attached to the holder portion, the pickup portion including: a core wire conductor, which is suitable for being connected to a core wire of a coaxial cable and which is connected to the feeding terminal when attached to the holder portion; and an earth conductor, which is suitable for being connected to an outer conductor of the coaxial cable and which is connected to the earth terminal when attached to the holder portion, characterized in that said feeding terminal comprises a connecting pin erected towards an inside of an insulating case of said holder portion and a connection portion to be connected with the glass antenna and having a predetermined width (a), said feeding terminal and the earth terminal of the connector configure a coplanar waveguide line, and said earth terminal is disposed to sandwich both sides of the width of the connection portion so that a predetermined distance (b) is provided between the earth terminal and each of the both sides of the connection portion; such that a characteristic impedance of the connector when the pickup portion is attached to the holder portion is equal to a characteristic impedance of the coaxial cable. a holder portion, suitable for being attached to a glass antenna on a substrate, the holder portion including: a feeding terminal; an earth terminal; and a pickup portion, detachably attached to the holder portion, the pickup portion including: a core wire conductor, which is suitable for being connected to a core wire of a coaxial cable and which is connected to the feeding terminal when attached to the holder portion; and an earth conductor, which is suitable for being connected to an outer conductor of the coaxial cable and which is connected to the earth terminal when attached to the holder portion, characterized in that said feeding terminal comprises a connecting pin erected towards an inside of an insulating case of said holder portion and a connection portion to be connected with the glass antenna and having a predetermined width (a), said feeding terminal and the earth terminal of the connector configure a coplanar waveguide line, and said earth terminal is disposed to sandwich both sides of the width of the connection portion so that a predetermined distance (b) is provided between the earth terminal and each of the both sides of the connection portion; such that a characteristic impedance of the connector when the pickup portion is attached to the holder portion is equal to a characteristic impedance of the coaxial cable. a feeding terminal; an earth terminal; and a pickup portion, detachably attached to the holder portion, the pickup portion including: a core wire conductor, which is suitable for being connected to a core wire of a coaxial cable and which is connected to the feeding terminal when attached to the holder portion; and an earth conductor, which is suitable for being connected to an outer conductor of the coaxial cable and which is connected to the earth terminal when attached to the holder portion, characterized in that said feeding terminal comprises a connecting pin erected towards an inside of an insulating case of said holder portion and a connection portion to be connected with the glass antenna and having a predetermined width (a), said feeding terminal and the earth terminal of the connector configure a coplanar waveguide line, and said earth terminal is disposed to sandwich both sides of the width of the connection portion so that a predetermined distance (b) is provided between the earth terminal and each of the both sides of the connection portion; such that a characteristic impedance of the connector when the pickup portion is attached to the holder portion is equal to a characteristic impedance of the coaxial cable. a core wire conductor, which is suitable for being connected to a core wire of a coaxial cable and which is connected to the feeding terminal when attached to the holder portion; and an earth conductor, which is suitable for being connected to an outer conductor of the coaxial cable and which is connected to the earth terminal when attached to the holder portion, characterized in that said feeding terminal comprises a connecting pin erected towards an inside of an insulating case of said holder portion and a connection portion to be connected with the glass antenna and having a predetermined width (a), said feeding terminal and the earth terminal of the connector configure a coplanar waveguide line, and said earth terminal is disposed to sandwich both sides of the width of the connection portion so that a predetermined distance (b) is provided between the earth terminal and each of the both sides of the connection portion; such that a characteristic impedance of the connector when the pickup portion is attached to the holder portion is equal to a characteristic impedance of the coaxial cable.