| 发明名称 |
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| 摘要 |
A small antenna for portable radios and the like in which two planar conductive boards are disposed in parallel relationship at a spaced interval which is small when compared with received radio wavelengths. A dielectric frame is disposed between the two planar conductive boards keeping them at the preselected spaced interval. Arbitrary feeding points are selected along the edges of the two conductive boards and at least one conductor is positioned at an arbitrary selected feeding point to short-circuit the two conductive boards. In some cases a plurality of arbitrary feeding points may be selected along the edges of the two conductive boards and a plurality of conductors positioned at the plurality of arbitary selected feeding points which short-circuits the conductive boards. The positions of the plurality of conductors which short-circuit the conductive boards may be automatically changed at will to provide the most desirable condition responsive to the direction of the radio waves. |
| 申请公布号 |
JPH0588003(B2) |
申请公布日期 |
1993.12.20 |
| 申请号 |
JP19880075352 |
申请日期 |
1988.03.28 |
| 申请人 |
KOKUSAI DENKI KK;ITO KYOHIKO |
发明人 |
USHAMA KATSUMI;SAKAMOTO SADAFUMI;ITO KYOHIKO |
| 分类号 |
H01Q13/08;H01Q1/24;H01Q1/38;H01Q7/00;H01Q9/04 |
主分类号 |
H01Q13/08 |
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