| 摘要 |
PROBLEM TO BE SOLVED: To provide a circularly polarized antenna capable of transmitting/receiving circularly polarized signals within an arbitrary frequency range and integrating a circularly polarized antenna having the same function in antenna modules of various portable electronic devices. SOLUTION: The present invention relates to a circularly polarized antenna and, more particularly, to a small-sized circularly polarized antenna including a function for transmitting and receiving a circularly polarized signal. The circularly polarized antenna comprises a substrate having an upper surface and a lower surface; a signal distributor; an antenna for transmitting and receiving the circularly polarized signal; and a plurality of support units for supporting an antenna body in an upper portion of the substrate. Furthermore, the antenna body maintains a fixed distance to the upper surface of the substrate. The upper surface of the substrate comprises a plurality of slots. One end of each slot overlaps with the respective ends of the other slots to form a central region. The lower surface of the substrate comprises a coupling unit being electrically connected with the signal distributor, and the center of the coupling unit corresponds to the central region. COPYRIGHT: (C)2008,JPO&INPIT
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