ANTENNA, ANTENNA DEVICE, AND WIRELESS DEVICE
First Claim
1. An antenna, comprising:
- a feeding element that is connected to a feeding point;
a first radiating element that is spaced apart from the feeding element and is fed by being coupled to the feeding element through electromagnetic field coupling to function as a radiating conductor;
a second radiating element that is spaced apart from the feeding element and is fed by being coupled to the feeding element through electromagnetic field coupling to function as a radiating conductor;
a first control element that is connected to the feeding element via a first impedance variable unit and is arranged such that when an impedance of the first impedance variable unit at a resonant frequency of the first radiating element is decreased, the electromagnetic field coupling between the feeding element and the first radiating element is weakened and the function of the first radiating element as the radiating conductor is degraded;
a second control element that is connected to the feeding element via a second impedance variable unit and is arranged such that when an impedance of the second impedance variable unit at a resonant frequency of the second radiating element is decreased, the electromagnetic field coupling between the feeding element and the second radiating element is weakened and the function of the second radiating element as the radiating conductor is degraded; and
a control unit that controls the first impedance variable unit to adjust the connection between the feeding element and the first control element, and controls the second impedance variable unit to adjust the connection between the feeding element and the second control element.
2 Assignments
0 Petitions
Accused Products
Abstract
An antenna includes a feeding element connected to a feeding point, a first radiating element that is spaced apart from the feeding element and is coupled to the feeding element through electromagnetic field coupling, a second radiating element that is spaced apart from the feeding element and is coupled to the feeding element through electromagnetic field coupling, a first control element that is connected to the feeding element via a first impedance variable unit, and a second control element that is connected to the feeding element via a second impedance variable unit, and a control unit that controls the first impedance variable unit to adjust the connection between the feeding element and the first control element and controls the second impedance variable unit to adjust the connection between the feeding element and the second control element.
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Citations
20 Claims
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1. An antenna, comprising:
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a feeding element that is connected to a feeding point; a first radiating element that is spaced apart from the feeding element and is fed by being coupled to the feeding element through electromagnetic field coupling to function as a radiating conductor; a second radiating element that is spaced apart from the feeding element and is fed by being coupled to the feeding element through electromagnetic field coupling to function as a radiating conductor; a first control element that is connected to the feeding element via a first impedance variable unit and is arranged such that when an impedance of the first impedance variable unit at a resonant frequency of the first radiating element is decreased, the electromagnetic field coupling between the feeding element and the first radiating element is weakened and the function of the first radiating element as the radiating conductor is degraded; a second control element that is connected to the feeding element via a second impedance variable unit and is arranged such that when an impedance of the second impedance variable unit at a resonant frequency of the second radiating element is decreased, the electromagnetic field coupling between the feeding element and the second radiating element is weakened and the function of the second radiating element as the radiating conductor is degraded; and a control unit that controls the first impedance variable unit to adjust the connection between the feeding element and the first control element, and controls the second impedance variable unit to adjust the connection between the feeding element and the second control element. - View Dependent Claims (2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18)
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3. An antenna, comprising:
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a feeding element that is connected to a feeding point; a first radiating element that is spaced apart from the feeding element and is fed by being coupled to the feeding element through electromagnetic field coupling to function as a radiating element; a second radiating element that is spaced apart from the feeding element and is fed by being coupled to the feeding element through electromagnetic field coupling to function as a radiating element; a first control element that is connected to the feeding element via a first impedance variable unit; a second control element that is connected to the feeding element via a second impedance variable unit; and a control unit that controls the first impedance variable unit to adjust the connection between the feeding element and the first control element, and controls the second impedance variable unit to adjust the connection between the feeding element and the second control element; wherein the first control element is arranged such that a high impedance portion of the first control element having a high impedance at a resonant frequency of the first radiating element and a low impedance portion of the first radiating element having a low impedance at the resonant frequency of the first radiating element are positioned close to each other; and wherein the second control element is arranged such that a high impedance portion of the second control element having a high impedance at a resonant frequency of the second radiating element and a low impedance portion of the second radiating element having a low impedance at the resonant frequency of the second radiating element are positioned close to each other. - View Dependent Claims (16, 19, 20)
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Specification