Antenna device and radio communication apparatus
First Claim
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1. An antenna device, comprising:
- an antenna main body having at least three electricity feeding points; and
a feeder circuit for feeding an electrical signal to the antenna main body, wherein the feeder circuit feeds electrical signals different in at least one of amplitude and phase to the electricity feeding points.
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Abstract
An antenna device includes an antenna main body having at least three electricity feeding points and a feeder circuit for feeding an electrical signal to the antenna main body. The feeder circuit feeds electrical signals different in at least one of amplitude and phase to the electricity feeding points. The device enables to control the directivity with the use of a single antenna.
16 Citations
9 Claims
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1. An antenna device, comprising:
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an antenna main body having at least three electricity feeding points; and
a feeder circuit for feeding an electrical signal to the antenna main body, wherein the feeder circuit feeds electrical signals different in at least one of amplitude and phase to the electricity feeding points. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A radio communication apparatus, comprising:
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a transmission and reception section; and
an antenna device, wherein the antenna device includes an antenna main body having at least three electricity feeding points; and
a feeder circuit for feeding an electrical signal to the antenna main body, andwherein the feeder circuit feeds electrical signals different in at least one of amplitude and phase to the electricity feeding points.
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Specification