Dual band antenna

Details Dual band antenna Dual band antenna

H - Electricity

01

Q

H01Q 5/01 (2006.01) H01Q 9/30 (2006.01) H04B 1/18 (2006.01)

Patent

CA 2296519

A dual band antenna with a simple and compact structure includes an inductor, first and second rod-like radiating elements connected to opposite ends of the inductor, with dielectric material surrounding both the inductor and the joining portions of the first and second radiating elements on the respective ends of the inductor. A conductive housing surrounds the dielectric and supports the inductor and the joining portions of the first and second radiating elements. The housing and dielectric create a capacitance, so that an LC resonant circuit is formed in conjunction with the inductor. The LC circuit is designed such that only one radiating element radiates at the higher band of the dual operating band, whereas both radiating elements radiate at the lower band.

Cette antenne à deux bandes de construction simple et compacte comporte un inducteur, un premier et un second élément rayonnant du type tige connectés aux extrémités opposées de l'inducteur et un matériau diélectrique entourant l'inducteur ainsi que les parties d'assemblage des deux éléments rayonnant. Un boîtier conducteur entoure le diélectrique et soutient l'inducteur ainsi que les parties d'assemblage des deux éléments rayonnant. Ce boîtier et le diélectrique créent une capacité, de sorte que un circuit à inductance et capacité (LC) résonnant est formé conjointement avec l'inducteur. Ce circuit LC est conçu de manière qu'un seul élément rayonnant rayonne à la bande supérieure des deux bandes en fonctionnement alors que les deux éléments rayonnant rayonnent à la bande inférieure.

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