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    • 1. 发明公开
    • ARRAY ANTENNA
    • 阵列天线
    • EP2337151A1
    • 2011-06-22
    • EP09830487.6
    • 2009-12-07
    • Sakura Tech Corporation
    • SAKAI FuminoriOHTA Kazuo
    • H01Q3/26G01S7/02H01Q21/08H04B1/04
    • Disclosed is an electronic scanning array antenna which can be used as a UWB radar having an occupied band of not less than 500 MHz. An impulse generator is connected to each of a plurality of antenna elements constituting the electronic scanning array antenna, and a transmission trigger time to each of the impulse generators connected to the antenna elements is changed, whereby the phase of radio waves emitted from an antenna is equivalently changed. Moreover, a transmission trigger repletion interval is changed to thereby control a direction of a beam emitted from the array antenna. As means of changing a transmission trigger timing to each of the impulse generators connected to the antenna elements, a method of changing a frequency of a transmission trigger pulse and a method of changing a pulse position are adopted.
    • 公开了一种电子扫描阵列天线,其可以用作具有不小于500MHz的占用频带的UWB雷达。 将脉冲发生器连接到构成电子扫描阵列天线的多个天线元件中的每一个,并且改变与连接到天线元件的每个脉冲发生器的发送触发时间,由此从天线发射的无线电波的相位是 等同地改变。 而且,通过改变发送触发重复间隔来控制从阵列天线发射的波束的方向。 作为对连接到天线元件的每个脉冲发生器改变发送触发定时的手段,采用改变发送触发脉冲的频率的方法和改变脉冲位置的方法。