Communication electronic device and antenna structure thereof
First Claim
1. A communication electronic device with an antenna structure, the antenna structure comprising:
- a ground element; and
an antenna element, disposed on a dielectric substrate, comprising;
a first radiation portion, having a first end as a feeding point of the antenna element, and a second end as an open end;
a second radiation portion, having one end electrically coupled to the ground element, wherein a length of the second radiation portion is greater than that of the first radiation portion, and the second radiation portion is extended around the open end of the first radiation portion; and
a spiral metal line, having a first end electrically coupled to the first radiation portion, wherein the spiral metal line contributes a parallel resonance at a frequency outside an operating band of the antenna element, and the parallel resonance contributes a resonant mode in the operating band to increase an operating bandwidth of the antenna element.
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Accused Products
Abstract
An antenna structure having a ground element and an antenna element is provided. The antenna element is disposed on a dielectric substrate, and includes a first radiation portion, a second radiation portion, and a spiral metal line. An end of the first radiation portion is a feeding point of the antenna element, and another end is open. An end of the second radiation portion is electrically coupled to the ground element, and the length of the second radiation portion is greater than that of the first radiation portion. The first radiation portion is surrounded by the second radiation portion. An end of the spiral metal line is coupled to the first radiation portion. The spiral metal line contributes a parallel resonance outside the antenna'"'"'s operating band, and results in a resonant mode generated within the antenna element'"'"'s operating band such that the operating bandwidth of the antenna element is increased.
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Citations
16 Claims
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1. A communication electronic device with an antenna structure, the antenna structure comprising:
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a ground element; and an antenna element, disposed on a dielectric substrate, comprising; a first radiation portion, having a first end as a feeding point of the antenna element, and a second end as an open end; a second radiation portion, having one end electrically coupled to the ground element, wherein a length of the second radiation portion is greater than that of the first radiation portion, and the second radiation portion is extended around the open end of the first radiation portion; and a spiral metal line, having a first end electrically coupled to the first radiation portion, wherein the spiral metal line contributes a parallel resonance at a frequency outside an operating band of the antenna element, and the parallel resonance contributes a resonant mode in the operating band to increase an operating bandwidth of the antenna element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An antenna structure, comprising:
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a ground element; and an antenna element, disposed on a dielectric substrate, comprising; a first radiation portion, having a first end as a feeding point of the antenna element, and a second point as an open end; a second radiation portion, having one end electrically coupled to the ground element, wherein a length of the second radiation portion is greater than that of the first radiation portion, and the second radiation portion is extended around the open end of the first radiation portion; and a spiral metal line, having a first end electrically coupled to the first radiation portion, wherein the spiral metal line contributes a parallel resonance at a frequency outside an operating band of the antenna element, and the parallel resonance contributes a resonant mode in the operating band to increase an operating bandwidth of the antenna element. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification