Electromagnetic wave reflecting device and electromagnetic wave reflecting fence
The electromagnetic wave reflecting device includes: a reflection panel that reflects a radio wave of a desired band selected from a frequency band between 1 GHz and 170 GHz; and a frame that holds the reflection panel. The frame has a conductive portion. The reflection panel is held by the frame so that an edge of the reflection panel is not exposed to an outside of the frame. At least a part of the conductive portion of the frame is covered with a non-conductive protecting member or protective coating.
1 . An electromagnetic wave reflecting device, comprising:
a reflection panel that reflects a radio wave of a desired band selected from a frequency band between 1 GHZ and 170 GHz; and
a frame that holds the reflection panel, wherein
the frame has a conductive portion,
the reflection panel is held by the frame so that an edge of the reflection panel is not exposed to an outside of the frame, and
at least a part of the conductive portion of the frame is covered with a non-conductive protecting member or protective coating.
2 . The electromagnetic wave reflecting device according to claim 1 , wherein
a conductive facing surface that faces the edge in an inside of the frame is covered with the protecting member or the protective coating.
3 . The electromagnetic wave reflecting device according to claim 1 , wherein
a conductive facing surface that faces the edge in an inside of the frame is not covered with the protecting member or the protective coating.
4 . The electromagnetic wave reflecting device according to claim 1 , wherein
the frame includes a conductive main body, a slit into which the reflection panel is inserted, and a cavity communicating with the slit, and
an outer surface of the main body and the slit are covered with the protective coating.
5 . The electromagnetic wave reflecting device according to claim 4 , wherein
the reflection panel is held in the slit in a state in which the edge of the reflection panel is in contact or not in contact with a base surface of the cavity.
6 . The electromagnetic wave reflecting device according to claim 5 , wherein
the main body has a hollow that is separated from the slit and the cavity.
7 . The electromagnetic wave reflecting device according to claim 1 , wherein
the frame includes a conductive main body, a slit into which the reflection panel is inserted, a cavity communicating with the slit, and a groove formed in the cavity,
a base surface of the groove is a facing surface facing the edge, and
an outer surface of the main body and the slit are covered with the protective coating.
8 . The electromagnetic wave reflecting device according to claim 7 , wherein
the reflection panel is held by the slit in a state in which the edge is in contact or not in contact with the base surface of the groove.
9 . The electromagnetic wave reflecting device according to claim 8 , wherein
the main body has a hollow that is separated from the cavity and the groove.
10 . The electromagnetic wave reflecting device according to claim 1 , wherein
the frame includes a conductive main body and a non-conductive cover provided on an outer surface of the main body.
11 . The electromagnetic wave reflecting device according to claim 10 , wherein
a part of an outer surface and an inner wall of the main body are covered with the protective coating, and
the non-conductive cover is bonded to the protective coating covering the outer surface of the main body.
12 . An electromagnetic wave reflecting fence being formed by joining a plurality of the electromagnetic wave reflecting devices of claim 1 in a width direction of the frame, wherein
each of two adjacent reflection panels is held by the frame in a state in which an edge of the reflection panel is in contact or not in contact with a facing surface facing the edge in an inside of the frame.