MINIATURE WIDEBAND ANTENNA WITH PARASITIC ELEMENT
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United States of America Patent
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app pub date -
Dec 8, 2016
filing date -
Jul 20, 2016
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Abstract
A wideband antenna structure is disclosed. The wideband antenna is disposed on a printed circuit board, and includes a substrate, a first ground sheet, a main radiator and a parasitic element. The substrate has a first surface and a second surface opposite to the first surface. The first surface includes a first antenna area and a first grounding area connected to the first antenna area. The first antenna area has a first side along a first direction, a second side along a second direction, a third side opposite to the first side and a fourth side opposite to the second side. The first grounding sheet is disposed in the first grounding area, and next to the first, the second and the third sides. The main radiator is disposed in the first antenna area, and includes a feeding point near the second side; a first radiator extending from the feeding point along the first direction to a turning point; and a second radiator extending from the turning point toward the third side along the second direction. The parasitic element is disposed along the second direction. A first gap is formed between the parasitic element and the second radiator.
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