High efficiency slot fed microstrip antenna having an...

Details High efficiency slot fed microstrip antenna having an... High efficiency slot fed microstrip antenna having an...

H - Electricity

01

Q

H01Q 1/38 (2006.01) H01Q 1/00 (2006.01) H01Q 1/48 (2006.01)

Patent

CA 2520963

A slot fed microstrip antenna (100) having an improved stub (118) provides enhanced efficiency through more efficient coupling of electromagnetic energy between the feed line (117) and the slot (106). A dielectric layer (105) disposed between the feed line (117) and the ground plane (108) provides a first region (112) having a first relative permittivity and at least a second region (113) having a second relative permittivity. The second relative permittivity is higher as compared to the first relative permittivity. The stub (118) is disposed on the high permittivity region (113). The dielectric layer can include magnetic particles, which are preferably disposed underlying the stub.

Une antenne à microruban (100) introduite par fente présentant une manchette améliorée (118) permet d'obtenir un rendement accru par un couplage plus efficace de l'énergie électromagnétique entre la ligne d'alimentation (117) et la fente (106). Une couche diélectrique (105) disposée entre la ligne d'alimentation (117) et le plan de sol (108) procure une première région (112) ayant une première permittivité relative ainsi qu'au moins une seconde région (113) ayant une seconde permittivité relative. La seconde permittivité relative est supérieure à la première permittivité relative. La manchette (118) est disposée sur la région à haute permittivité (113). La couche diélectrique peut contenir des particules magnétiques lesquelles sont disposées de préférence sous-jacentes à la manchette.

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