| 摘要 |
PURPOSE: A multiband antenna apparatus is provided to prevent isolation degradation between two feeding points by forming a DC ground for lightning protection in the center of a patch antenna and a coupler board. CONSTITUTION: A DC ground(100) is formed in the center of a patch antenna(1) and a coupler board(2). The patch antenna is connected to the coupler board by inserting a feeding pin(110) into two feeding points(101). The patch antenna is comprised of a first dielectric(11), a first ground conductor(12), and a radiation patch(10). The radiation patch includes a slot(13). The first ground conductor is installed on one side of the first dielectric.
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