GPS wave antenna apparatus

摘要

A GPS wave antenna apparatus according to the present invention includes a substrate unit (10) having a printed board (11) on which an antenna constituting element including a GPS wave antenna element (12) is mounted integrally as one component, a case (20) having an opening portion (21) at one end, for detachably receiving the substrate unit (10) through the opening portion (21), and a conductive plate (30) attached to the case (20) so as to block the opening portion (21) and arranged opposite to the GPS wave antenna element (12) at a fixed distance therebetween. The GPS wave antenna element (12) has a thin-film conductive pattern, and the substrate unit (10) includes a low noise amplifier (13) provided on the printed board (11) and a feeder (14) connected to a feeder section of the antenna element (12) through the low noise amplifier (13). <IMAGE>