Analysis of the symmetric center-fed V-dipole antenna

A wire antenna moment method using piecewise sinusoidal expansion and testing functions is used to obtain properties of a symmetric center-fed -dipole antenna driven by a slice generator. The impedance, admittance, current distribution, radiation patterns in the dipole plane, and other properties are computed as functions of the parameters , , and , where = arm length, = free space wavelength, = wire radius, and = apex angle. The results are checked with experiment and compared with similar results previously reported for the linear dipole. It is shown that 1) omnidirectional patterns over a wide bandwidth are achieved for , but at the expense of reduced resonant radiation resistance and reduced bandwidth, insofar as the impedance is concerned, 2) for less than about , lowest resonant length and increases as decreases, and 3) lowest antiresonant length for is within of that for a linear dipole with the same .