| 摘要 |
PURPOSE: A dish antenna is provided to reduce size of antenna and to improve reception sensibility CONSTITUTION: The dish antenna comprises a front cover(10), a reflector(20), a horn antenna(30), a reflecting mirror(40), a rear cover(50), a down converter(60) and a rear sub-cover(70). The front cover(10) forms a beam focus, and holds the reflector(20). The reflector(20) also forms the beam focus. The horn antenna(30) receives the beam focus from reflector(20), and transmits the signal to the down converter(60). The reflecting mirror(40) is installed at rear side of the horn antenna(30) to reflect the signal to the reflector(20). The rear cover(50) regulates the focus distance for the horn antenna(30), and holds the reflecting mirror(40). The down converter(60) is connected to the horn antenna(30) to down the frequency of received signal. The rear sub-cover(70) covers the down converter(60), and holds an output terminal of middle frequency.
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