A windshield for a vehicle, comprising a MIMO antenna, wherein the windshield is capable of being provided at an open portion of a window frame, and the MIMO antenna comprises: a plurality of antenna elements (10, 40) respectively including a plurality of conductive elements (11, 12, 41, 42) that are configured to be connected to different feeding points (13, 43) from each other; and one or more base members each being directly or indirectly provided at an upper edge portion of the windshield, wherein each base member is provided with a left side portion, a right side portion, a top portion, a bottom portion, a front surface portion and a back surface portion which serves as the attaching portion to the windshield, the conductive elements (11, 12, 41, 42) being provided on either of the base members, wherein the conductive elements (12, 42) include a conductive portion arranged vertically on a glass surface that is to be an inner surface of the windshield at a vehicle room side, wherein D/ W, where "W" is a width of the open portion and "D" is a minimum distance between the conductive elements (11, 12, 41, 42) of the antenna elements (10, 40) in a direction parallel to the direction of "W", is less than or equal to 0.35, wherein the conductive elements (11, 12) include a first conductive element and a second conductive element; the windshield being characterized in that at least a part of the first conductive element is a wide width conductor, provided on a surface next to the left side portion or the right side portion of the base member on which 25 the conductive portion is provided, and is provided along an edge side of a side of the base member on which the second conductive element is provided. a plurality of antenna elements (10, 40) respectively including a plurality of conductive elements (11, 12, 41, 42) that are configured to be connected to different feeding points (13, 43) from each other; and one or more base members each being directly or indirectly provided at an upper edge portion of the windshield, wherein each base member is provided with a left side portion, a right side portion, a top portion, a bottom portion, a front surface portion and a back surface portion which serves as the attaching portion to the windshield, the conductive elements (11, 12, 41, 42) being provided on either of the base members, wherein the conductive elements (12, 42) include a conductive portion arranged vertically on a glass surface that is to be an inner surface of the windshield at a vehicle room side, wherein D/ W, where "W" is a width of the open portion and "D" is a minimum distance between the conductive elements (11, 12, 41, 42) of the antenna elements (10, 40) in a direction parallel to the direction of "W", is less than or equal to 0.35, wherein the conductive elements (11, 12) include a first conductive element and a second conductive element; the windshield being characterized in that at least a part of the first conductive element is a wide width conductor, provided on a surface next to the left side portion or the right side portion of the base member on which 25 the conductive portion is provided, and is provided along an edge side of a side of the base member on which the second conductive element is provided.