ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE HAVING THE SAME
First Claim
1. An antenna structure comprising:
- an antenna element including a feeding radiation electrode defining an antenna; and
a substrate including a ground region in which a ground electrode is provided and a non-ground region in which no ground electrode is provided;
whereinthe antenna element is supported by the substrate so that at least a portion of the antenna element is arranged in the non-ground region;
the feeding radiation electrode includes an intermediate path that is connected to a feeding portion of the feeding radiation electrode for electrical conduction and that is arranged to extend in a perimeter direction on a side surface of the dielectric base adjacent to the non-ground region, and an open end side path that is arranged to extend along a loop path that extends from a termination of the intermediate path in a direction so as to separate from the intermediate path on a surface of the dielectric base and then return toward the intermediate path;
an end of the open end side path is parallel or substantially parallel to and spaced apart from the intermediate path;
the dielectric base includes a plurality of base portions including a base portion having a portion provided in a spaced region between the parallel or substantially parallel open end and the intermediate path of the feeding radiation electrode; and
the base portion having the portion provided in the spaced region between the parallel or substantially parallel open end and the intermediate path is made of a dielectric material having a dielectric constant greater than dielectric constants of the other base portions.
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Accused Products
Abstract
An antenna element has a dielectric base, at least a portion of which is arranged in a non-ground region of a substrate. A feeding radiation electrode has an intermediate path that is connected to a feeding portion and that is arranged to extend in a perimeter direction of the dielectric base on a side surface of the dielectric base adjacent to the non-ground region and spaced away from a ground region. The feeding radiation electrode has an open end side path that is arranged to extend along a loop path from the termination of the intermediate path and an open end of the extended distal end is arranged parallel or substantially parallel to and spaced apart from the intermediate path. A dielectric material having a high dielectric constant, which increases the capacitance between the intermediate path and the open end, is located in a region including the spaced region between the intermediate path and parallel or substantially parallel open end.
12 Citations
12 Claims
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1. An antenna structure comprising:
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an antenna element including a feeding radiation electrode defining an antenna; and a substrate including a ground region in which a ground electrode is provided and a non-ground region in which no ground electrode is provided;
whereinthe antenna element is supported by the substrate so that at least a portion of the antenna element is arranged in the non-ground region; the feeding radiation electrode includes an intermediate path that is connected to a feeding portion of the feeding radiation electrode for electrical conduction and that is arranged to extend in a perimeter direction on a side surface of the dielectric base adjacent to the non-ground region, and an open end side path that is arranged to extend along a loop path that extends from a termination of the intermediate path in a direction so as to separate from the intermediate path on a surface of the dielectric base and then return toward the intermediate path; an end of the open end side path is parallel or substantially parallel to and spaced apart from the intermediate path; the dielectric base includes a plurality of base portions including a base portion having a portion provided in a spaced region between the parallel or substantially parallel open end and the intermediate path of the feeding radiation electrode; and the base portion having the portion provided in the spaced region between the parallel or substantially parallel open end and the intermediate path is made of a dielectric material having a dielectric constant greater than dielectric constants of the other base portions. - View Dependent Claims (2, 3, 4, 8, 10, 11)
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5. An antenna structure comprising:
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an antenna element including a feeding radiation electrode defining; and a substrate including a ground region in which a ground electrode is provided and a non-ground region in which no ground electrode is provided;
whereinthe antenna element is supported by the substrate so that at least portion of the antenna element is arranged in the non-ground region; the feeding radiation electrode includes an intermediate path that is connected to a feeding portion of the feeding radiation electrode for electrical conduction and that is arranged to extend in a perimeter direction on a side surface of the dielectric base adjacent to the non-ground region, and an open end side path that is arranged to extend along a loop path that extends from a termination of the intermediate path in a direction so as to separate from the intermediate path on a surface of the dielectric base and then return toward the intermediate path; an end of the open end side path is parallel or substantially parallel to and spaced apart from the intermediate path; and a dielectric material having a dielectric constant greater than the dielectric base is provided in the spaced region between the parallel or substantially parallel open end and the intermediate path of the feeding radiation electrode. - View Dependent Claims (6, 7, 9, 12)
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Specification