Flat plate antenna

Details Flat plate antenna Flat plate antenna

H - Electricity

01

Q

H01Q 13/20 (2006.01) H01Q 13/22 (2006.01) H01Q 21/06 (2006.01)

Patent

CA 2080244

2080244 9117586 PCTABS00008 A flat plate transmit/receive antenna (1) is disclosed having first and second parallel plate waveguides (2, 3). A waveguide bend (4) communicates energy between the waveguides (2, 3) to enable transmission and reception from an exposed plate (5) of the second waveguide (3) within which an array of apertures (6) is formed. A coupler or probe (8) is provided at a focus of the first waveguide (2) to cause, on transmission, a cylindrical phase front to propagate along the first waveguide (2) which is converted by the waveguide bend (4) to a planar phase front in the second waveguide (3). Scanning and dual polarisation embodiments are also disclosed.

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