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(11) | EP 0 470 797 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Antenna apparatus |
(57) In an antenna apparatus, a plurality of divisions of antenna elements (21-24) are
formed on a radio apparatus cabinet (41) or on a substrate packaged on the surface
of the radio apparatus cabinet (1), the divisions are interconnected together by coils
(25-27), and a capacitor (28) is connected in parallel with at least one of the coils.
The antenna apparatus is compact and tunable to a plurality of frequencies and has
a high antenna gain. |