A column antenna apparatus and a manufacturing method thereof are
disclosed. This invention forms a spiral metal layer on a column body.
The column antenna apparatus can simplify the manufacturing process and
enhance the yield rate. The column antenna apparatus includes a column
body, a metal layer and a spiral structure. The metal layer is formed on
the surface of the column body, and the spiral structure is formed on the
metal layer. The spiral structure is implemented by removing part of the
metal layer to form a pitch structure. The column body is exposed between
the pitches. The column antenna apparatus can be applied to a single,
dual, three or multi frequencies wireless communication device.
Furthermore, the column antenna apparatus can be installed at outside of
the wireless communication device to be an external antenna or at inside
of the wireless communication device to be a built-in antenna.