ARRAY ANTENNA DEVICE
An array antenna device is obtained which is capable of satisfactorily reducing mutual coupling between element antennas without inviting a significant increase in cost. A parallel line formed on the same plane as a patch element, close to the patch element, in a direction that is a magnetic field d...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | An array antenna device is obtained which is capable of satisfactorily reducing mutual coupling between element antennas without inviting a significant increase in cost. A parallel line formed on the same plane as a patch element, close to the patch element, in a direction that is a magnetic field direction of a patch antenna and that is parallel to the polarization direction of the patch antenna, and a bent line shaped so as to be bent between adjacent patch elements and configured to connect their parallel lines to each other, form a coupling line, which couples part of an electromagnetic wave excited by one of the patch elements to its adjacent patch antenna, and, in the coupling line, a gap between the parallel line and the patch element and a length of the bent line are set so that an electromagnetic wave coupled from one patch antenna to its adjacent patch antenna via space and an electromagnetic wave coupled from the one patch antenna to the adjacent patch antenna via the coupling line cancel each other. |
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