| 摘要 |
<p>The invention concerns a flat-plate antenna provided on a substrate (2) comprising a closed-shape slot (1) dimensioned to operate at a specific frequency and arranged in a short- circuit plane of at least one supply line (3, 4). In that case, the perimeter of the slot is selected such that p = klambdas, where k is an integer greater than 1 and lambdas the wavelength guided in the slot. The antenna further comprises at least one first feed line (3) arranged in an open circuit zone of the slot and a second feed line (4) arranged at a distance d = (2n+1) lambdas/4 from the first line, n being an integer not less than zero. The invention is in particular applicable to wireless transmissions.</p> |
