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    • 9. 发明授权
    • Parabolic antenna
    • 抛物面天线
    • US5714960A
    • 1998-02-03
    • US684754
    • 1996-07-19
    • Yong-Hwan Choi
    • Yong-Hwan Choi
    • H01Q15/16H01Q1/12H01Q3/18H01Q13/02H01Q3/16
    • H01Q3/18
    • A parabolic antenna includes a reflector, a feed horn positioned at a focal point of the reflector, a frame fixed on a rear side of the reflector at one end, an arm on one end of which the feed horn is fixed, a pair of hinges, a boss and a shaft. The hinges extend from the other end of the arm and spaced apart from each other, and the boss extends from the other end of the frame and is interposed between the hinges. The shaft is fitted through one hinge and into the boss and the other hinge. The parabolic antenna is further provided with at least one ball stopper having a ball and a spring. The ball stopper is inserted in a blind hole formed on an inner surface of each hinge, and the spring presses the ball against the boss so that the ball is fitted into one of the recesses, thereby holding the arm and the frame at a desired angle.
    • 抛物面天线包括反射器,位于反射器焦点处的馈电喇叭,一端固定在反射器后侧的框架,一端固定馈电喇叭的一对铰链 ,一个老板和一个轴。 铰链从臂的另一端延伸并且彼此间隔开,并且凸起从框架的另一端延伸并且插入在铰链之间。 轴通过一个铰链安装到凸台和另一个铰链中。 抛物面天线还设置有至少一个具有球和弹簧的球塞。 球形止动器插入形成在每个铰链的内表面上的盲孔中,并且弹簧将球压靠在凸台上,使得球装配到一个凹部中,从而将臂和框架保持在期望的角度 。
    • 10. 发明授权
    • Parabolic antenna capable of adjusting the elevation angle of a feed horn
    • 抛物面天线能够调节馈电喇叭的仰角
    • US5874925A
    • 1999-02-23
    • US748582
    • 1996-11-13
    • Yong-Hwan Choi
    • Yong-Hwan Choi
    • H01Q19/13H01Q1/12H01Q3/04H01Q3/18H01Q13/02H04B1/16H01Q3/16
    • H01Q3/18
    • A parabolic antenna provided with a reflector and an arm comprises a housing fixed to a free end of the arm, a case enclosing a low noise blockdown converter ("LNB"), a feed horn protruding from a front side of the LNB case and a driving and a driven gears for adjusting an elevation angle of the feed horn. The LNB case has a pair of hinge pins. The housing has a pair of supporting members which are spaced from each other and provided with a pair of apertures into which the hinge pins of the LNB case are snugly fitted, respectively. The driven gear is engaged on one of the hinge pins of the LNB case and the driving gear is engaged on an input shaft. The input shaft rotatably passes through one of the supporting members, the driving gear and the driven gear being meshed with each other and, in turn, rotated with the input shaft, thereby allowing the elevation angle of the feed horn can be adjusted by rotating the input shaft.
    • 设置有反射器和臂的抛物面天线包括固定到臂的自由端的壳体,包围低噪声阻塞转换器(“LNB”)的壳体,从LNB壳体的前侧突出的馈电喇叭和 驱动和用于调节进给角的仰角的从动齿轮。 LNB外壳有一对铰链销。 壳体具有彼此间隔开并具有一对孔的一对支撑构件,LNB壳体的铰链销分别紧密地嵌合在该孔中。 从动齿轮接合在LNB壳体的一个铰链销上,并且驱动齿轮接合在输入轴上。 输入轴可旋转地穿过支撑构件中的一个,驱动齿轮和从动齿轮彼此啮合,并随后与输入轴一起旋转,从而允许通过旋转进给角来调节进给喇叭的仰角 输入轴。