The outputs of a vertical monopole and two mutually perpendicular slots in a horizontal plane can be properly combined to yield a steerable cardioid-shaped pattern for vertically polarized waves. The required weighting factors for placing the pattern null in any desired direction are presented in graphical form. The shape and the half-power beamwidth of the steerable pattern are examined. This combination antenna unit offers important advantages in direction finding and other applications, especially at microwave frequencies.
A Novel Slots-and-Monopole Antenna with a Steerable Cardioid Pattern
IEEE Transactions on Aerospace and Electronic Systems ; AES-8 , 2 ; 130-134
1972-03-01
1850529 byte
Article (Journal)
Electronic Resource
English
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