公开(公告)号：US11101530B2

公开(公告)日：2021-08-24

申请号：US16607220

申请日：2017-05-26

申请人： Mitsubishi Electric Corporation

发明人： Hidenori Yukawa ,  Yu Ushijima ,  Motomi Watanabe ,  Jun Goto ,  Naofumi Yoneda ,  Shinji Arai

IPC分类号： H01Q15/24 ,  H01P1/16 ,  H01P1/17 ,  H01P3/123

摘要： A square waveguide (1) has four ridges (6a, 6b, 7a, 7b). The cross section of the square waveguide (1) perpendicular to a waveguide axial direction is square. Inside the square waveguide (1), two rectangular waveguide terminals (4, 5) are formed by partitioning the inside along the waveguide axial direction. A septum phase plate (2) formed to get narrower stepwisely as its gets closer to a square waveguide terminal (3) opposite to the rectangular waveguide terminals (4, 5) is provided. A projecting portion (8) is provided on a part of a ridge (7b) formed on a ridge-side wall surface opposite to a wall surface, the septum phase plate (2) being joined to the wall surface in a part where the septum phase plate has largest width, the projecting portion (8) being larger than other parts of the ridge (7b) in a cross-sectional shape perpendicular to the waveguide axial direction.

公开(公告)号：US10680307B2

公开(公告)日：2020-06-09

申请号：US16308585

申请日：2017-06-05

申请人： Mitsubishi Electric Corporation

发明人： Motomi Watanabe ,  Shinji Arai ,  Tomohiro Takahashi ,  Takeshi Oshima ,  Takeshi Yuasa ,  Takuma Nishimura ,  Hidenori Yukawa

IPC分类号： H01P5/12 ,  H01P5/107 ,  H01P1/17 ,  H01P5/103 ,  H01P3/123 ,  H01P5/02 ,  H01P5/16

摘要： A substrate is used as one tube wall of a hollow waveguide, the substrate including a strip line wired in an inner layer, a first ground surface formed on a front surface, and a second ground surface formed on a part of a back surface. As a result of such a configuration, a waveguide strip line transducer having the same dimension as the external dimension of the hollow waveguide can be obtained.

公开(公告)号：US10027031B2

公开(公告)日：2018-07-17

申请号：US15511435

申请日：2016-05-31

申请人： Mitsubishi Electric Corporation

发明人： Shinji Arai ,  Tomohiro Takahashi

IPC分类号： H01Q13/02 ,  H01P11/00 ,  H01Q21/00 ,  H01P5/12 ,  H01Q1/28 ,  H01Q15/24

摘要： Lower-limit frequency reflection characteristics of a horn antenna are improved even though element spacing, of less than or equal to one wavelength, is a spacing at which grating lobes do not occur in an antenna radiation pattern. The horn antenna includes a horn antenna and a conductor grid that divides an aperture A of the horn antenna in a grid pattern and that electrically connects to an inner surface of the horn antenna at the aperture A of the horn antenna. Width of the conductor grid in a direction orthogonal to a horn antenna aperture plane differs from electrical length of the path of the horn antenna of the conductor grid portion at the frequency of power supplied to the horn antenna.