VERTICAL SHAPED-BEAM COLLINEAR ARRAY-
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The electrical and physical characteristics of a shaped- beam vertical collinear array antenna are described. The ar- ray was designed for operation in two principal 20-MHz bands centered at approximately 1227 and 1575 MHz. The patterns are omnidirectional in azimuth and shaped to provide near-con- stant gain coverage in the elevation sector from 5 to 30 deg. Measured VSWR, gain and pattern characteristics are presented.
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