Antenna system designed to enhance power efficiency
AssigneeZ-Com, Inc.
InventorChing-Feng Chen
Life of this patent
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Abstract
An antenna system designed to enhance power efficiency of a patch antenna for wireless transmission is provided. The system includes a patch antenna, a reflective plate, a transmission line, and a printed circuit board assembly. The reflective plate is arranged at the position of ¼λ away from the patch antenna, to reflect the electro-magnetic waves, radiated behind the patch antenna. Because the antenna and the reflective plate are away from ¼λ, the reflective signals returned to the patch antenna constructively interfere with the signal radiated from the antenna. Therefore, the provided system may strengthen the gain of the antenna. Further, the electromagnetic interference is decreased at the position close to the printed circuit board assembly behind the reflective plate.
Claims9
An antenna system to enhance power efficiency, comprising:
- an antenna to radiate signals or receive radiation signals;
- a reflective plate located on one side of the antenna at a distance proximate to ¼ of the antenna wavelength;
- and
- a printed circuit board assembly located on another side of the reflective plate to transmit or receive the radiation signals to the antenna.
Dependencies are inferred from the claim text.