Monopole antenna
First Claim
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1. A monopole antenna, comprising:
- a base board having a first planar surface and a second planar surface opposite to said first planar surface;
a first substantially L-shaped conductor formed on said first planar surface, wherein said first substantially L-shaped conductor is composed of a first main radiating strip and a first extension radiating strip connecting to said first main radiating strip;
a first ground plane formed on said first planar surface, wherein said first main radiating strip and said first ground plane are parallel to and spaced from each other by a predetermined distance;
a second substantially L-shaped conductor formed on said second planar surface, wherein said second substantially L-shaped conductor is composed of a second main radiating strip and a second extension radiating strip connecting to said second main radiating strip; and
a second ground plane formed on said second planar surface, wherein said second main radiating strip and said second ground plane are parallel to and spaced from each other by said predetermined distance.
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Abstract
A monopole antenna is disclosed. The monopole antenna comprises a base board, a first substantially L-shaped conductor, a first ground plane, a second substantially L-shaped conductor, a second ground plane and a feeding strip, and the monopole antenna further has a plurality of evenly-distributed through holes penetrating the base board from the first substantially L-shaped conductor to the second substantially L-shaped conductor. When the monopole antenna is operated at about 2.4–2.5 GHz, good radiation patterns and antenna gain are obtained for being applicable to IEEE802.11b/g specifications.
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Citations
20 Claims
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1. A monopole antenna, comprising:
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a base board having a first planar surface and a second planar surface opposite to said first planar surface; a first substantially L-shaped conductor formed on said first planar surface, wherein said first substantially L-shaped conductor is composed of a first main radiating strip and a first extension radiating strip connecting to said first main radiating strip; a first ground plane formed on said first planar surface, wherein said first main radiating strip and said first ground plane are parallel to and spaced from each other by a predetermined distance; a second substantially L-shaped conductor formed on said second planar surface, wherein said second substantially L-shaped conductor is composed of a second main radiating strip and a second extension radiating strip connecting to said second main radiating strip; and a second ground plane formed on said second planar surface, wherein said second main radiating strip and said second ground plane are parallel to and spaced from each other by said predetermined distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A monopole antenna, comprising:
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a base board having a first planar surface and a second planar surface opposite to said first planar surface; a first substantially L-shaped conductor formed on said first planar surface, wherein said first substantially L-shaped conductor is composed of a first main radiating strip and a first extension radiating strip connecting to said first main radiating strip, and a first rounded angle is formed between said first main radiating strip and said first extension radiating strip; a first ground plane formed on said first planar surface, wherein said first main radiating strip and said first ground plane are parallel to and spaced from each other by a predetermined distance; a second substantially L-shaped conductor formed on said second planar surface, wherein said second substantially L-shaped conductor is composed of a second main radiating strip and a second extension radiating strip connecting to said second main radiating strip, and a second rounded angle is formed between said second main radiating strip and said second extension radiating strip; a second ground plane formed on said second planar surface, wherein said second main radiating strip and said second ground plane are parallel to and spaced from each other by said predetermined distance; and a feeding strip is electrically connected to the open end of said first extension radiating strip; wherein a plurality of through holes penetrating said base board are evenly distributed on said first substantially L-shaped conductor and said second substantially L-shaped conductor. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification