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    • 7. 发明申请
    • PHASED ARRAY ANTENNA
    • 天线阵列
    • US20090278744A1
    • 2009-11-12
    • US12090024
    • 2006-10-11
    • Hideki KirinoKouichi HiranakaTakeshi Hatakeyama
    • Hideki KirinoKouichi HiranakaTakeshi Hatakeyama
    • H01Q1/38
    • H01P1/184H01Q3/34H01Q9/045H01Q21/0093
    • There is provided a phased array antenna having variable phase shifters constituted by using a variable dielectric-constant dielectric substance whose dielectric constant varies according to an applied electric field, which antenna can dispense with a DC blocking element that causes mismatch, and reduce deformation of the beam shape even when beam tilt occurs, in the case where the variable phase shifters are divided into those for right-side tilt and those for left-side tilt and the phase shift amounts thereof are independently controlled.The phased array antenna is provided with a feeding phase shift unit (130) having a laminated structure obtained by laminating at least a ground conductor layer (117), an insulator layer (118), a main conductor layer (119), a variable dielectric-constant dielectric layer (120), and a sub conductor layer (121) in this order, and a propagation characteristic variable line (105) having a line on the sub conductor layer in an area which planarly overlaps a line on the main conductor layer is provided on the feeding phase shift unit. By applying a bias voltage between the main conductor layer and the sub conductor layer, the dielectric constant of the variable dielectric-constant dielectric substance in the propagation characteristic variable line area is varied to control the propagation characteristics. Thereby, a DC blocking element to be inserted in series into the feeding line can be dispensed with.
    • 提供了一种具有可变移相器的相控阵天线,该可变移相器通过使用介电常数根据所施加的电场而变化的可变介电常数介电物质构成,该天线可以省略导致失配的DC阻挡元件,并减少 即使发生光束倾斜,在可变移相器被分割成用于右侧倾斜的那些的情况下,以及用于左侧倾斜的可变移相器和相移量的可变移相器被独立地控制的情况下。 相控阵天线设置有馈电相移单元(130),该馈电相移单元具有通过层叠至少接地导体层(117),绝缘体层(118),主导体层(119),可变电介质 - 常数介质层(120)和副导体层(121),以及传播特性可变线(105),其在与主导体层上的线平面重叠的区域中的副导体层上具有线 设置在馈电相移单元上。 通过在主导体层和副导体层之间施加偏置电压,改变传播特性可变线区域中的可变介电常数电介质的介电常数,以控制传播特性。 由此,可以省略将串联插入给料线的直流阻塞元件。