Broadband antenna with multiple associated patches and...

Details Broadband antenna with multiple associated patches and... Broadband antenna with multiple associated patches and...

H - Electricity

01

Q

H01Q 9/40 (2006.01) H01Q 1/38 (2006.01) H01Q 9/04 (2006.01)

Patent

CA 2727041

Described herein is an antenna for use with a radio frequency identification system, the antenna including a reference ground; an antenna feed; a primary patch antenna element for mid-field transmission and reception of one of HP and UHF signals, wherein the primary patch antenna element is electrically coupled to the antenna feed; and one or more additional patch antenna elements for mid-field transmission and reception of the one of HF and UHF broadband signals, wherein each of the one or more additional patch antenna elements is electrically connected to an edge of the primary patch antenna element for transmission and reception of the one of HF and UHF signals. The one or more additional patch antenna elements provide for gain enhancement of the one of HF and UHF signals.

Linvention concerne une antenne prévue pour être utilisée avec un système didentification par radiofréquence. Ladite antenne  comprend une masse de référence; une alimentation dantenne; un élément dantenne à plaque primaire pour assurer une transmission et une réception de champ intermédiaire de lun des signaux HF et UHF, lélément dantenne à plaque primaire étant électriquement couplé à lalimentation dantenne; et un ou plusieurs éléments dantenne à plaque additionnels en vue d une transmission et dune réception de champ intermédiaire de lun des signaux à large bande HF et UHF, lélément ou les éléments dantenne à plaque additionnels étant chacun connecté électriquement à un bord de lélément dantenne à plaque primaire en vue de la transmission et de la réception de des signaux HF ou UHF. Lélément ou les éléments dantenne à plaque additionnels assurent une amplification de gain de lun des signaux HF et UHF.

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