| 摘要 |
A dual-band antenna includes a grounded conductor (11) over a support base (20); a first radiating conductor plate (12)that is disposed substantially parallel to the grounded conductor; a feeding conductor strip (13) that extends downward from the first radiating conductor plate; a connecting conductor strip (14) for short-circuiting the first radiating conductor plate to the grounded conductor; a second radiating conductor plate (15) that stands vertically to the grounded conductor below the first radiating conductor plate; and a bridge (16) for linking the lower end of the second radiating conductor plate to the lower end of the feeding conductor strip. Supplying a high-frequency power having a first frequency to the lower end of the feeding conductor strip causes the first radiating conductor plate to resonate and supplying a high-frequency power having a second frequency that is higher than the first frequency to the lower end of the feeding conductor strip causes the second radiating conductor plate to resonate. <IMAGE>
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