Antenna with means for blocking currents in ground plan

Details Antenna with means for blocking currents in ground plan Antenna with means for blocking currents in ground plan

H - Electricity

01

Q

H01Q 1/38 (2006.01) H01Q 9/04 (2006.01)

Patent

CA 2160285

Dielectric components extend between top and bottom surfaces of a ground plane in a resonant microstrip patch antenna over a distance of one-quarter-wavelength of a resonant frequency of the antenna. The components form quarter-wave chokes within which waves cancel with reflected waves and reduce currents in the bottom surfaces of the ground plane. This reduces back lobe responses.

L'invention est une antenne à microruban résonnante dans laquelle des éléments diélectriques sont placés entre les surfaces supérieure et inférieure d'un tapis de sol sur une distance d'un quart de longueur d'onde à la fréquence de résonnance de l'antenne. Ces éléments forment des dispositifs d'arrêt quart d'onde dans lesquels les ondes sont annulées par les ondes réfléchies, qui réduisent les courants à la surface inférieure du tapis de sol. Il en résulte une réduction du lobe arrière.

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