| 摘要 |
PURPOSE: An antenna installed after correcting a tolerance using a celestial body is provided to install the antenna for a strongest satellite signal, and install the antenna by using the shadow of the sun at every time or by using a relative angle from any other celestial body than the sun. CONSTITUTION: An antenna(1) comprises a straight rod(4), a celestial oriented element(7), and a reference element(13). The straight rod(4) is arranged on a side(3) of a LNB(low noise blockdown converter) arm(2). The celestial oriented element(7) is arranged at the bottom of the straight rod(4) and has a shadow plate(5) and a mirror(6). The reference element(13) gets in touch with the left boundary or the right boundary of the antenna(1) while rotating around a column(10) coupled to a bracket(9) on the rear side of the antenna(1). The celestial oriented element(7) can be rotative around a center axis(8). The boundary of the reference element(13) is parallel to an elongated line of a center axis(15) of the bracket(9).
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