On- vehicle windowpane antenna apparatus

摘要

A on-vehicle windowpane antenna apparatus (10) according to the present invention is mounted on a windowpane of a vehicle (1). The apparatus (10) includes a rectangular loop (13) formed of a first long and narrow conductor, and a composite line (11,12) formed of a second long and narrow conductor arranged in parallel with one of short sides of the rectangular loop (13). The apparatus (10) also includes means for causing the apparatus to serve as a circularly polarized antenna (10A) which emits a circularly polarized wave in a direction perpendicular to a plane where the rectangular loop (13) including the composite line (11,12) is formed, and which is capable or receiving a GPS wave.