Diversity antenna structure having closely-positioned antennas

Details Diversity antenna structure having closely-positioned antennas Diversity antenna structure having closely-positioned antennas

H - Electricity

01

Q

H01Q 1/27 (2006.01) H01Q 1/24 (2006.01) H01Q 21/00 (2006.01) H04B 7/08 (2006.01)

Patent

CA 2128883

A diversity antenna structure (500) and a diversity transceiver incorporating the same are provided. Each antenna of the diversity antenna structure is formed of a first portion (516, 525) and a second portion (520, 527). Second portions (520, 527) of each antenna are coupled to an electrical ground plane and form thereby ground plane portions of the respective antennas. Such second antenna (520, 527) are maintained in physical isolation from one another thereby, when receiving high frequency signals, to be maintained in apparent electrical isolation from one another. Because such ground plane portions are maintained in the apparent electrical isolation from one another, antennas of the diversity antenna structure may be positioned in close proximity to one another without causing coupling between the separate antennas of the diversity antenna structure.

Image Image Image Structure d'antenne et d'émetteur-récepteur à diversité comportant des éléments communs. Chacune des antennes de la structure d'antenne en diversité est constituée d'une première section (516, 525) et d'une deuxième section (520, 527). La deuxième section de chacune des antennes est couplée avec un plan de sol électrique et forme donc une section de plan de sol de son antenne respective. Ces deuxièmes sections d'antenne (520, 527) sont maintenues en état d'isolation matérielle les unes des autres, ce qui a pour effet, lors de la réception des signaux haute fréquence, que l'isolation électrique entre ces sections est apparemment maintenue. Comme ces sections de plan de sol sont maintenues en isolation électrique apparente les unes par rapport aux autres, les antennes de la structure d'antenne à diversité peuvent être installées à proximité les unes des autres sans que ne se produise du couplage entre les antennes distinctes appartenant à la structure d'antenne à diversité.

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