Compact antenna for a load control device
First Claim
1. An antenna for an electrical load control device for controlling the power delivered to an electrical load, the load control device comprising a controllably conductive device for controlling the power delivered to the electrical load, a controller coupled to a control input of the controllably conductive device for control of the controllably conductive device, a transmitter and/or receiver in communication with the controller, a substantially-planar mounting yoke adapted to receive a traditional-style faceplate mounted thereto, an actuator button for providing an input to the controller, and a backcover connected to the yoke to enclose the controllably conductive device, the controller, and the transmitter and/or receiver, the actuator button mounted relative to the yoke, such that the actuator button is adapted to extend through an opening of the traditional-style faceplate when the faceplate is attached to the yoke, the antenna coupled to the transmitter and/or receiver and operable to transmit or receive radio frequency signals at a specified frequency, the antenna comprising:
- an antenna printed circuit board having first and second sides adapted to be disposed in a plane perpendicular to the mounting yoke;
a first loop of conductive material having an inductance and a capacitance, the capacitance and the inductance forming a circuit resonant at the specified frequency, the first loop formed on the first side of the printed circuit board; and
a second loop of conductive material having two ends adapted to be electrically coupled to the transmitter and/or receiver, the second loop formed on one of the sides of the printed circuit board and magnetically coupled to the first loop;
wherein the antenna is positioned inside and behind the actuator button and extends through the opening of the faceplate beyond a front surface of the faceplate when the faceplate is attached to the yoke.
2 Assignments
0 Petitions
Accused Products
Abstract
A compact antenna for use in a load control device for controlling the power delivered to an electric load and operable to transmit or receive radio frequency signals at a specified frequency is presented. The antenna comprises a first main radiating loop of conductive material having an inductance and a capacitor forming a circuit being resonant at the specified frequency, and a second feed loop of conductive material having two ends adapted to be electrically coupled to an electronic circuit. The second feed loop is substantially only magnetically coupled to the first main radiating loop. The antenna is disposed in an actuator button, which is provided in an opening of a traditional-style faceplate. The antenna extends beyond the faceplate of the load control device.
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Citations
13 Claims
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1. An antenna for an electrical load control device for controlling the power delivered to an electrical load, the load control device comprising a controllably conductive device for controlling the power delivered to the electrical load, a controller coupled to a control input of the controllably conductive device for control of the controllably conductive device, a transmitter and/or receiver in communication with the controller, a substantially-planar mounting yoke adapted to receive a traditional-style faceplate mounted thereto, an actuator button for providing an input to the controller, and a backcover connected to the yoke to enclose the controllably conductive device, the controller, and the transmitter and/or receiver, the actuator button mounted relative to the yoke, such that the actuator button is adapted to extend through an opening of the traditional-style faceplate when the faceplate is attached to the yoke, the antenna coupled to the transmitter and/or receiver and operable to transmit or receive radio frequency signals at a specified frequency, the antenna comprising:
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an antenna printed circuit board having first and second sides adapted to be disposed in a plane perpendicular to the mounting yoke; a first loop of conductive material having an inductance and a capacitance, the capacitance and the inductance forming a circuit resonant at the specified frequency, the first loop formed on the first side of the printed circuit board; and a second loop of conductive material having two ends adapted to be electrically coupled to the transmitter and/or receiver, the second loop formed on one of the sides of the printed circuit board and magnetically coupled to the first loop; wherein the antenna is positioned inside and behind the actuator button and extends through the opening of the faceplate beyond a front surface of the faceplate when the faceplate is attached to the yoke. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification
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- Resources
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Current AssigneeLutron Technology Company LLC
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Original AssigneeLutron Electronics Company Incorporated (Lutron Electronics)
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InventorsAltonen, Gregory, Mosebrook, Donald R., Bollinger, Robert Jr.
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Primary Examiner(s)Dinh; Trinh V
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Assistant Examiner(s)DUONG, DIEU HIEN
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Application NumberUS11/447,725Publication NumberTime in Patent Office1,204 DaysField of Search343/867, 343/742US Class Current343/867CPC Class CodesH01Q 1/22 by structural association w...H01Q 7/00 Loop antennas with a substa...H01Q 7/005 with variable reactance for...
