Microstrip patch antenna structure

Details Microstrip patch antenna structure Microstrip patch antenna structure

H - Electricity

01

Q

H01Q 1/36 (2006.01) H01Q 1/32 (2006.01) H01Q 9/04 (2006.01)

Patent

CA 2071325

ABSTRACT A microstrip patch antenna structure is disclosed having increased bandwidth and reduced coupling while maintaining low profile capabilities. The structure includes a support member having an isolating recess in which an electromagnetically coupled patch pair of antenna elements is positioned, the upper element being substantially flush with the surface of the support member surrounding the recess. To enhance isolation of the elements, the recess walls and the support surface are preferably electrically conductive and connected to ground. Also preferably, the lower element is connected to a microstrip transmission line, coplanar with the lower element and suspended within an isolating channel through the support member. In one aspect of the invention, a transition means is interposed between the transmission line and a connector, which connects the support member to a transmitter/receiver, to permit relative rotation therebetween. The transition means can also include means for capacitively coupling the transmission line with the connector.

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