Comparison of the Quality Factors of Impedance Matched Electrically Small Wire Antennas

摘要

In this paper, the quality factors of several impedance matched, electrically small wire antennas are compared. The antennas considered have the same height, similar occupied volume and are designed to be self-resonant at the same frequency. The antennas are then impedance matched to a nominal 50 Ohm feed line. The quality factors of the antennas are compared as a function of impedance matching technique and antenna geometry. It is shown that the quality factors of the antennas are essentially the same, and, for the most part, independent of the matching technique and differences in the antenna geometry.