Patch antenna with capacitive elements

Details Patch antenna with capacitive elements Patch antenna with capacitive elements

H - Electricity

01

Q

H01Q 9/04 (2006.01)

Patent

CA 2685311

Disclosed is a micropatch antenna comprising a radiating element and a ground plane separated by an air gap. Small size, light weight, wide bandwidth, and wide directional pattern are achieved without the introduction of a high-permittivity dielectric substrate. Capacitive elements are configured along the perimeter of at least one of the radiating element and ground plane. Capacitive elements may comprise extended continuous structures or a series of localized structures. The geometry of the radiating element, ground plane, and capacitive elements may be varied to suit specific applications, such as linearly-polarized or circularly-polarized electromagnetic radiation.

L'invention concerne une antenne micro-pastille comprenant un élément rayonnant et un plan de masse séparés par un entrefer. Une petite taille, un faible poids, une large bande passante et un large diagramme directionnel sont obtenus sans l'introduction d'un substrat diélectrique à haute permittivité. Des éléments capacitifs sont configurés le long du périmètre de l'élément rayonnant et/ou du plan de masse. Les éléments capacitifs peuvent comprendre des structures continues étendues ou une série de structures localisées. La géométrie de l'élément rayonnant, du plan de masse et des éléments capacitifs peut être modifiée pour convenir à des applications spécifiques, telles qu'un rayonnement électromagnétique polarisé linéairement ou polarisé circulairement.

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