Patent ID: 8081130

Claim:
A multi-band whip antenna comprising: a dipole including a number of in line tubular sections, a central pair of tubular sections having a gap there between to provide a feed point for the dipole; a pair of tubular sections adjacent said central pair of tubular sections and spaced therefrom to form gaps; a pair of staggered meanderlines serving as chokes respectively across the non-feed point gaps between tubular sections, said staggered meanderlines functioning to provide an asymmetric meanderline configuration, said meanderlines tuned such that one meanderline has an associated choke response frequency above that of the other meanderline for minimizing Gibbs oscillations; and, a coaxial feed line running up through selected tubular sections and having an inner conductor coupled to one of the tubular sections forming said feed point and an outer conductor coupled to the other tube section forming said feed point, whereby as the frequency of an input signal is increased first one meanderline goes from a shorting condition to an open condition at a frequency below the other of said meanderlines, said meanderlines functioning to provide a foreshortened dipole above a first frequency and an elongated dipole below a second frequency.