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Directional Antenna and Smart Antenna System Using the Same

Inactive Publication Date: 2012-03-15
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]Antenna design is crucial to a portable device with wireless communication function, such as wireless local area network (WLAN) or other mobile communication systems. In a conventional wireless communication device, one or a plurality of omni directional antennas are used to receive radio signals from all directions. Antenna diversity technique is also used to determine which one or more omni-directional antennas should be used to receive or transmit signals. However, the efficiency and gain of omni directional antennas are not good enough. Hence, there's a need for an antenna design that provides smarter and better receiving quality.

Problems solved by technology

However, the efficiency and gain of omni directional antennas are not good enough.

Method used

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  • Directional Antenna and Smart Antenna System Using the Same
  • Directional Antenna and Smart Antenna System Using the Same
  • Directional Antenna and Smart Antenna System Using the Same

Examples

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Embodiment Construction

[0018]Please refer to FIG. 1, which is a schematic diagram of a smart antenna system 10 according to an embodiment of the present invention. The smart antenna system 10 is utilized in a portable device 12. The smart antenna system 10 includes directional antennas ANT1-ANT4. A directional antenna ANTx of the directional antennas ANT1-ANT4 includes at least one antenna. The at least one antenna is disposed on a side of a display 14 of the portable device 12, and utilizes a metal part of the display 14 as a reflector to generate a directional radiation pattern DRPx. The side of the display 14 can be a left side, a right side, a bottom side, a top side or a back side (not shown) of the display 14. All of directional radiation patterns DRP1-DRP4 generated by the directional antennas ANT1-ANT4 substantially form an omni directional radiation pattern.

[0019]Noticeably, compared with an omni directional antenna, an ordinary directional antenna has many advantages in a corresponding direction...

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PUM

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Abstract

The present invention discloses a directional antenna for a portable device. The directional antenna includes at least one antenna, disposed on a side of a display of the portable device, for utilizing a metal part of the display as a reflector to generate a directional radiation pattern.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefits of U.S. Provisional Application No. 61 / 382,922, filed on Sep. 15, 2010 and entitled “SMART ANTENNA AND SYSTEM USING THE SAME”, U.S. Provisional Application No. 61 / 422,660, filed on Dec. 14, 2010 and entitled “SMART ANTENNA SYSTEM”, and U.S. Provisional Application No. 61 / 425,252, filed on Dec. 21, 2010 and entitled “PORTABLE DEVICE WITH SMART ANTENNA” the contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a directional antenna and smart antenna system using the same, and more particularly, to a directional antenna and smart antenna system using the same capable of utilizing a metal part of a display of a portable device as a reflector to generate a directional radiation pattern.[0004]2. Description of the Prior Art[0005]Antenna design is crucial to a portable device with wireless communication function,...

Claims

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Application Information

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IPC IPC(8): H01Q1/44
CPCH01Q21/205H01Q1/2258H04B7/0608
Inventor WU, MIN-CHUNG
Owner MEDIATEK INC