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Chip antenna
| Details |
Inventors: Tsuru, Teruhisa; Mandai, Harufumi; Shiroki, Koji; Asakura, Kenji;
Assignee: Murata Manufacturing Co., Ltd. (JP)
Primary Examiner: Le; Hoanganh T.
Assistant Examiner:
Attorney, Agent or Firm: Ostrolenk, Faber, Gerb & Soffen, LLP
A chip antenna which provides a high gain and large band width and which makes it possible to achieve a reduction in the size of the chip antenna. The chip antenna has a dielectric base which is formed as a rectangular parallelepiped containing a spirally wound conductor whose winding axis is perpendicular to the longitudinal dimension of the dielectric base and parallel to the mounting surface. The configuration of the winding cross section S, which is perpendicular to the winding axis of the conductor, is a rectangle whose longitudinal vertical dimension is H and whose horizontal dimension is W. One end of the conductor is led out to the surface of the dielectric base to form a feeding end that is connected to a feeding terminal for applying a signal to the conductor, and the other end thereof forms a free end within the dielectric base. |
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DETAILED DESCRIPTION The present invention has been made with a view toward eliminating these problems in the prior art.
It is accordingly an object of the present invention to provide a chip antenna which is of high gain and wide band width and which allows a reduction in height.
To achieve the above object, there is provided, in accordance with an embodiment of the present invention, a chip antenna comprising: a dielectric base having the shape of a rectangular parallelepiped and having a mounting surface; a spirally wound conductor provided on the surface of or inside the dielectric base; and a feeding terminal provided on the surface of the dielectric base and connected for applying a signal to the conductor, wherein the winding axis of the conductor is perpendicular to the longitudinal dimension of the dielectric base and parallel to the mounting surface.
In such a chip antenna, since the winding axis of the conductor is perpendicular to the longitudinal dimension of the dielectric base, and parallel to the mounting surface thereof, it is possible to increase the outer circumference of the winding cross section of the conductor without increasing the size of the chip antenna.
Other features and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings.
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