Dielectric antenna and radio device using the same
First Claim
1. A dielectric antenna, comprising a pillar-shaped dielectric section for radiating an electromagnetic wave being fed thereto, wherein:
- the dielectric section includes a depressed portion in an upper portion thereof; and
a vertical cross section of the depressed portion has such a shape that a height of the dielectric section gradually increases toward a side surface of the dielectric section.
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Accused Products
Abstract
A dielectric antenna of the present invention includes a pillar-shaped dielectric section for radiating an electromagnetic wave being fed thereto. The dielectric section includes a depressed portion in an upper portion thereof. The vertical cross section of the depressed portion has such a shape that the height of the dielectric section gradually increases toward the side surface of the dielectric section. For example, the depressed portion is a notch having a V-shaped vertical cross section. Alternatively, the depressed portion includes a flat surface portion.
61 Citations
29 Claims
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1. A dielectric antenna, comprising a pillar-shaped dielectric section for radiating an electromagnetic wave being fed thereto, wherein:
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the dielectric section includes a depressed portion in an upper portion thereof; and
a vertical cross section of the depressed portion has such a shape that a height of the dielectric section gradually increases toward a side surface of the dielectric section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A radio device for high frequency communications applications, comprising:
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a dielectric antenna for radiating an electromagnetic wave being fed thereto; and
a communications circuit connected to the dielectric antenna, wherein;
the dielectric antenna includes a pillar-shaped dielectric section for radiating the electromagnetic wave;
the dielectric section includes a depressed portion in an upper portion thereof; and
a vertical cross section of the depressed portion has such a shape that a height of the dielectric section gradually increases toward a side surface of the dielectric section. - View Dependent Claims (26, 27, 28, 29)
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Specification