Millimeter wave reception device, mounting structure for millimeter wave reception device, and millimeter wave transmission/reception device
First Claim
Patent Images
1. A millimeter wave reception device, comprising:
- a base member;
an antenna portion placed on an upper surface of said base member; and
a cover arranged above said antenna portion to cover said antenna portion,wherein said antenna portion is formed of a hemispherical lens antenna and arranged within a space formed by said upper surface of said base member and an inner surface of said cover,said cover is formed in a hollow conical shape or a hollow pyramid shape with a top portion having a peak shape, in a tapered shape, and includes not less than one inclined surface having a constant gradient such that said space becomes narrower at a position closer to an upper portion, andan angle formed between an inclined surface of said cover and said upper surface of said base member is not less than 60° and
not more than 90°
,said top portion of said cover and an apex portion and a central portion of said antenna portion are present within a directional region of said antenna portion, andsaid top portion of said cover is located above said apex portion and said central portion in a vertical direction connecting said apex portion and said central portion of said antenna portion.
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Abstract
A millimeter wave reception device includes a base member, an antenna portion placed on an upper surface of the base member, and a cover arranged above the antenna portion to cover the antenna portion. The antenna portion is arranged within a space formed by the upper surface of the base member and an inner surface of the cover. The cover is formed in a tapered shape, and includes not less than one inclined surface having a constant gradient such that the space becomes narrower at a position closer to an upper portion. An angle formed between the inclined surface of the cover and the upper surface of the base member is not less than 60° and not more than 90°.
8 Citations
8 Claims
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1. A millimeter wave reception device, comprising:
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a base member; an antenna portion placed on an upper surface of said base member; and a cover arranged above said antenna portion to cover said antenna portion, wherein said antenna portion is formed of a hemispherical lens antenna and arranged within a space formed by said upper surface of said base member and an inner surface of said cover, said cover is formed in a hollow conical shape or a hollow pyramid shape with a top portion having a peak shape, in a tapered shape, and includes not less than one inclined surface having a constant gradient such that said space becomes narrower at a position closer to an upper portion, and an angle formed between an inclined surface of said cover and said upper surface of said base member is not less than 60° and
not more than 90°
,said top portion of said cover and an apex portion and a central portion of said antenna portion are present within a directional region of said antenna portion, and said top portion of said cover is located above said apex portion and said central portion in a vertical direction connecting said apex portion and said central portion of said antenna portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification