Diversity antenna apparatus
First Claim
1. A diversity antenna apparatus comprising:
- a plurality of antenna elements disposed on a substrate; and
a ground pattern formed in or on the substrate, the ground pattern functioning together with each of the antenna elements;
wherein the ground pattern is formed at a central region of the substrate with a gap from each of the antenna elements, and wherein the antenna elements are disposed along outer edges of the substrate and/or the ground pattern so as to surround the ground patterns,wherein the ground pattern has at least one side edge along which at least two of the antenna elements are disposed with tips thereof directed in the same direction and with spaces provided adjacent to and in the directions of the respective tips of the antenna elements.
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Accused Products
Abstract
In a diversity antenna apparatus, chip antennas are used as antenna elements, and the chip antennas are disposed in association with a ground pattern with certain gaps from the ground pattern. The chip antennas are disposed so as to surround the ground pattern formed on a substrate, and the ground pattern is shared among the chip antennas. Furthermore, hybrid patterns are included in the substrate, and the hybrid patterns also share the ground pattern with the chip antennas to achieve compact design. Alternatively, a transmitting chip antenna and a ground pattern associated with the transmitting chip antenna together form a vertically polarized antenna, and the transmitting chip antenna and the ground pattern associated with the transmitting chip antenna are separated from receiving chip antennas and a ground pattern associated with the receiving chip antennas.
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Citations
21 Claims
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1. A diversity antenna apparatus comprising:
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a plurality of antenna elements disposed on a substrate; and a ground pattern formed in or on the substrate, the ground pattern functioning together with each of the antenna elements; wherein the ground pattern is formed at a central region of the substrate with a gap from each of the antenna elements, and wherein the antenna elements are disposed along outer edges of the substrate and/or the ground pattern so as to surround the ground patterns, wherein the ground pattern has at least one side edge along which at least two of the antenna elements are disposed with tips thereof directed in the same direction and with spaces provided adjacent to and in the directions of the respective tips of the antenna elements. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A diversity antenna apparatus comprising:
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a plurality of antenna elements disposed on a substrate, among which switching is allowed; and a ground pattern formed in or on the substrate, the ground pattern functioning together with each of the plurality of antenna elements; wherein the ground pattern is formed at a central region of the substrate with a gap from each of the antenna elements, wherein the antenna elements are disposed on the substrate so as to surround the ground pattern, and wherein the ground pattern and the antenna elements are disposed in parallel to a mounting surface of the substrates, wherein the ground pattern has at least one side edge along which at least two of the antenna elements are disposed with tips thereof directed in the same direction and with spaces provided adjacent to and in the directions of the respective tips of the antenna elements.
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9. A diversity antenna apparatus comprising:
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a plurality of antenna elements disposed on a substrate; and a ground pattern formed in or on the substrate, the ground pattern functioning together with each of the plurality of antenna elements; wherein the ground pattern is formed at a central region of the substrate with a gap from each of the antenna elements, and wherein the antenna elements surround the ground pattern, wherein the plurality of antenna elements comprises an antenna element dedicated for transmitting and an antenna element dedicated for receiving, wherein the ground pattern has at least one side edge along which at least two of the antenna elements are disposed with tips thereof directed in the same direction and with spaces provided adjacent to and in the directions of the respective tips of the antenna elements. - View Dependent Claims (10, 11, 12)
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13. A diversity antenna apparatus comprising:
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a plurality of antenna elements disposed on a substrate; and a ground pattern formed in or on the substrate, the ground pattern functioning together with each of the plurality of antenna elements; wherein the plurality of antenna elements comprises an antenna element dedicated for transmitting and an antenna element dedicated for receiving, wherein the ground pattern has at least one side edge along which at least two of the antenna elements are disposed with tips thereof directed in the same direction and with spaces provided adjacent to and in the directions of the respective tips of the antenna elements. - View Dependent Claims (14)
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15. A diversity antenna apparatus comprising:
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a plurality of chip-type antenna elements disposed on a plane of a substrate; a ground pattern formed in or on the substrate substantially in parallel with the plane to establish an electromagnetic coupling with the antenna elements, wherein all of the antenna elements are disposed outside an outer periphery of the ground pattern; and a connecting pattern formed in or on the substrate which is connected to the antenna elements to conduct switching among the antenna elements for diversity control, wherein the ground pattern has at least one side edge along which at least two of the antenna elements are disposed with tips thereof directed in the same direction and with spaces provided adjacent to and in the directions of the respective tips of the antenna elements. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification