A broadband 160-MC colinear array

The design of a 3-element colinear array is described. Over the 152-162 MC band, the array has a minimum gain of 4 db over a half-wavelength dipole and VSWR less than 1.5. The circularity of its horizontal pattern is ± 1/4 db. The array elements are covered and supported by a Fiberglas tube, DC grounds are provided for these radiating elements for lightning protection and reduction in static noise.