Radiation Q of practical electrically small cylindrical antennas as a function of aspect ratio - comparison to minimum Q formulas

The radiation Q of an antenna (Q_r) is an important design parameter. It is especially important for electrically small antennas because they inherently have high values of Q_r resulting in narrow bandwidth, large voltages and currents for a given radiated power and reduced radiation efficiency. Q_r was determined for several monopole type antennas. The antennas considered are a thin cylinder (TC), fat monopole (FM), conical monopole (CM), UTLM, disk loaded monopole (DLM), wheeler inverted cup (WIC), and a magic disk (MD)