Antenna apparatus capable of reducing decreases in gain and bandwidth
First Claim
Patent Images
1. An antenna apparatus comprising:
- a conductor plate having a prescribed shape having a first side and a second side adjacent to the first side;
a first feed element having a strip shape, a first end connected to a first feeding point, and an open second end;
a first parasitic element having a strip shape, a first end connected to the conductor plate, and an open second end, the first parasitic element isolating direct current from the first feed element, at least at a portion of the first parasitic element that is opposed to the first feed element;
a second feed element having a strip shape, a first end connected to a second feeding point, and an open second end;
a second parasitic element having a strip shape, a first end connected to the conductor plate, and an open second end, the second parasitic element isolating direct current from the second feed element, at least at a portion of the second parasitic element that is opposed to the second feed element;
a third feed element having a strip shape, a first end connected to a third feeding point, and an open second end; and
a third parasitic element having a strip shape, a first end connected to the conductor plate, and an open second end, the third parasitic element isolating direct current from the third feed element, at least at a portion of the third parasitic element that is opposed to the third feed element,wherein;
the first end of the second parasitic element and the first end of the third parasitic element are located on the first side of the prescribed shape of the conductor plate, and the first end of the first parasitic element is located on the second side of the prescribed shape of the conductor plate,a distance between the first end of the second parasitic element and the first end of the third parasitic element is longer than a distance between the first end of the first parasitic element and the first end of the second parasitic element,a part of the second feed element that includes the open second end of the second feed element extends in a first direction,a part of the third feed element that includes the open second end of the third feed element extends in a second direction opposite the first direction, anda part of the first feed element that includes the open second end of the first feed element extends away from the second and third feed elements in a third direction which is orthogonal to the first and second directions.
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Abstract
An antenna apparatus is provided with an antenna and a ground conductor plate. The antenna is provided with: a dielectric substrate having a first surface and a second surface; a feed element having a strip shape and formed on the first surface of the dielectric substrate, the feed element having a first end connected to a feeding point, and an opened second end; and a parasitic element having a strip shape and formed on the second surface of the dielectric substrate, the parasitic element having a first end connected to the ground conductor plate, and an opened second end. The feed element and the parasitic element are arranged to oppose each other, at at least a portion including the second end of the feed element and the second end of the parasitic element.
24 Citations
20 Claims
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1. An antenna apparatus comprising:
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a conductor plate having a prescribed shape having a first side and a second side adjacent to the first side; a first feed element having a strip shape, a first end connected to a first feeding point, and an open second end; a first parasitic element having a strip shape, a first end connected to the conductor plate, and an open second end, the first parasitic element isolating direct current from the first feed element, at least at a portion of the first parasitic element that is opposed to the first feed element; a second feed element having a strip shape, a first end connected to a second feeding point, and an open second end; a second parasitic element having a strip shape, a first end connected to the conductor plate, and an open second end, the second parasitic element isolating direct current from the second feed element, at least at a portion of the second parasitic element that is opposed to the second feed element; a third feed element having a strip shape, a first end connected to a third feeding point, and an open second end; and a third parasitic element having a strip shape, a first end connected to the conductor plate, and an open second end, the third parasitic element isolating direct current from the third feed element, at least at a portion of the third parasitic element that is opposed to the third feed element, wherein; the first end of the second parasitic element and the first end of the third parasitic element are located on the first side of the prescribed shape of the conductor plate, and the first end of the first parasitic element is located on the second side of the prescribed shape of the conductor plate, a distance between the first end of the second parasitic element and the first end of the third parasitic element is longer than a distance between the first end of the first parasitic element and the first end of the second parasitic element, a part of the second feed element that includes the open second end of the second feed element extends in a first direction, a part of the third feed element that includes the open second end of the third feed element extends in a second direction opposite the first direction, and a part of the first feed element that includes the open second end of the first feed element extends away from the second and third feed elements in a third direction which is orthogonal to the first and second directions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 20)
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14. A display apparatus comprising:
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a housing; an antenna module located in the housing and configured to receive a signal; and a display located in the housing and configured to display an image from the signal, wherein the antenna module comprises; a conductor plate having a prescribed shape having a first side and a second side adjacent to the first side; a first feed element having a strip shape, a first end connected to a first feeding point, and an open second end; a first parasitic element having a strip shape, a first end connected to the conductor plate, and an open second end, the first parasitic element isolating direct current from the first feed element, at least at a portion of the first parasitic element that is opposed to the first feed element; a second feed element having a strip shape, a first end connected to a second feeding point, and an open second end; a second parasitic element having a strip shape, a first end connected to the conductor plate, and an open second end, the second parasitic element isolating direct current from the second feed element, at least at a portion of the second parasitic element that is opposed to the second feed element; a third feed element having a strip shape, a first end connected to a third feeding point, and an open second end; and a third parasitic element having a strip shape, a first end connected to the conductor plate, and an open second end, the third parasitic element isolating direct current from the third feed element, at least at a portion of the third parasitic element that is opposed to the third feed element, wherein; the first end of the second parasitic element and the first end of the third parasitic element are located on the first side of the prescribed shape of the conductor plate, and the first end of the first parasitic element is located on the second side of the prescribed shape of the conductor plate, a distance between the first end of the second parasitic element and the first end of the third parasitic element is longer than a distance between the first end of the first parasitic element and the first end of the second parasitic element, a part of the second feed element that includes the open second end of the second feed element extends in a first direction, a part of the third feed element that includes the open second end of the third feed element extends in a second direction opposite the first direction, a part of the first feed element that includes the open second end of the first feed element extends away from the second and third feed elements in a third direction which is orthogonal to the first and second directions, and the conductor plate overlaps the display. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification
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Current AssigneePanasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
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Original AssigneePanasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
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InventorsHamabe, Taichi
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Primary Examiner(s)Levi, Dameon E
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Assistant Examiner(s)Alkassim, Jr., Ab Salam
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Application NumberUS14/330,371Publication NumberTime in Patent Office1,079 DaysField of Search343702, 343893US Class CurrentCPC Class CodesH01Q 1/243 with built-in antennasH01Q 1/523 between antennas of an arrayH01Q 21/0075 Stripline fed arrays H01Q21...H01Q 21/24 Combinations of antenna uni...H01Q 21/28 Combinations of substantial...H01Q 9/42 with folded element, the fo...
