PHASE SHIFTER AND ANTENNA DEVICE INCLUDING THE SAME

PROBLEM TO BE SOLVED: To provide a phase shifter capable of suppressing variation in the phase shift amount due to change in the distance between a signal conductor and a dielectric, and to provide an antenna device including this phase shifter.SOLUTION: A phase shifter 10 includes a first moving member 3a placed movably between a first ground plate 31 and a board 20, and a second moving member 3b placed movably between a second ground plate 32 and the board 20. The first moving member 3a has a first plate-like part 3aconsisting of a dielectric facing a signal conductor 2, and first inside protrusions 3a, 3asliding into contact with the board 20, and the interval of the first plate-like part 3aand signal conductor 2 is maintained by the first inside protrusions 3a, 3a. The second moving member 3b has a second plate-like part 3bconsisting of a dielectric facing the signal conductor 2, and second inside protrusions 3b, 3bsliding into contact with the board 20, and the interval of the second plate-like part 3band signal conductor 2 is maintained by the second inside protrusions 3b, 3b.SELECTED DRAWING: Figure 6 【課題】信号導体と誘電体との間の距離が変化することによる移相量の変動を抑制することができる移相器、及びこの移相器を備えたアンテナ装置を提供する。【解決手段】移相器１０は、第１グランド板３１と基板２０との間に移動可能に配置された第１移動部材３ａと、第２グランド板３２と基板２０との間に移動可能に配置され第２移動部材３ｂとを備える。第１移動部材３ａは、信号導体２と対向する誘電体からなる平板状の第１板状部３ａ１と、基板２０に摺接する第１内側突起３ａ２，３ａ３とを有し、第１内側突起３ａ２，３ａ３によって第１板状部３ａ１と信号導体２との間隔が保持され、第２移動部材３ｂは、信号導体２と対向する誘電体からなる平板状の第２板状部３ｂ１と、基板２０に摺接する第２内側突起３ｂ２，３ｂ３とを有し、第２内側突起３ｂ２，３ｂ３によって第２板状部３ｂ１と信号導体２との間隔が保持される。【選択図】図６