| 摘要 |
PROBLEM TO BE SOLVED: To provide a dielectric leaky wave antenna with a simple feeding structure for a polarized wave at an optional angle including 45 degrees providing a high aperture efficiency wherein an optional aperture distribution can easily be realized. SOLUTION: The part of a dielectric board 21 at which a plurality of metallic strips 25 are provided is divided into a first region Ea and a second region Eb by using a line L orthogonal to the length direction of the metallic strips 25 for a border, and a feeder part 30 is configured of a first feeding part 35 comprising: a branch part 32; a line 36 in succession to the branch part 32 and propagating an electromagnetic wave at the outside of the first region Ea in a prescribed direction; and a radiation part 37 for emitting the electromagnetic wave propagated through the line 36 in a direction orthogonal to the metallic strips of the first region Ea, and of a second feeding part 40 comprising: a line 41 in succession to the branch part 32 and propagating the electromagnetic wave at the outside of the second region Eb in a prescribed direction; and radiation part 42 for emitting the electromagnetic wave propagated through the line 41 in a direction orthogonal to the metallic strips of the second region Eb. COPYRIGHT: (C)2004,JPO&NCIPI
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