发明名称 HIDDEN WINDOW ANTENNA
摘要 A vehicle slot antenna wherein an electro-conductive coating is applied to the surface of a glass ply. The peripheral edge of the conductive coating is spaced from the vehicle window edge and connected to a high conductive bus bar to define an annular slot antenna with low resistance loss and improved antenna efficiency. The slot antenna is fed by a thin conductive line located in the middle of the slot and parallel to the bus bar. The thin line along with the conductive coating and window frame form a coplanar waveguide (CPW). The CPW feed provides a convenient feed for the antenna at any point around the perimeter of the window slot and affords antenna tuning and impedance matching. The antenna design can use the characteristic impedance of the CPW line to match the impedance of the slot antenna to the impedance of a coaxial cable or other input impedance.
申请公布号 US2015222006(A1) 申请公布日期 2015.08.06
申请号 US201414171114 申请日期 2014.02.03
申请人 Dai David 发明人 Dai David
分类号 H01Q1/12;H01Q13/10;H01Q1/27 主分类号 H01Q1/12
代理机构 代理人
主权项 1. An antenna that is included in a panel assembly, said antenna comprising: a frame member for receiving the panel assembly, said frame member being electrically conductive and having an edge and a surface that defines an opening through the frame member; at least one ply having a surface that is defined by an outer perimeter edge; an electrically conductive coating that is located on the surface of said ply, said electrically conductive coating having an outer peripheral edge that is spaced inwardly from the outer perimeter edge of said ply; a bus bar that has greater electrical conductivity than the electrical conductivity of said optically transparent electrically conductive coating, said bus bar being located partly on said electrically conductive coating and partly on the surface of said ply, said bus bar having a first edge that is spaced laterally between the outer peripheral edge of said electrically conductive coating and the edge of said frame member, said bus bar cooperating with said frame member and with said electrically conductive coating to define a slot antenna; an antenna feed line that is laterally located on the surface of said ply between the first edge of said bus bar and the perimeter edge of said ply; and an antenna feed point that electrically connects said antenna feed line to said bus bar.
地址 Novi MI US