Log-periodic slot antenna

Details Log-periodic slot antenna Log-periodic slot antenna

H - Electricity

01

Q

351/25

H01Q 11/10 (2006.01)

Patent

CA 1296421

ABSTRACT OF THE DISCLOSURE A log-periodic slot antenna has adjacent radiating elements connected by off-centre co-planar lines thereby providing the required phase reversal and modifying the element impedance to match that of the co-planar line. By providing a ground plane restricted in size to that of the element array a difference pattern can be formed by the single antenna giving a sharp null in the longitudinal direction of the antenna. A dual log-periodic antenna formed from two such single antennas can be fed in-phase and produce two difference patterns one in the co-polar plane and one in the cross-polar plane.

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