Abstract

The quasistatic electrical properties of what may be the simplest of all antennas, suggested initially by Schelkunoff and Friis (S.A. Schelkunoff and H.T. Friis, 1952), are derived. Following a brief review of the advantages of this antenna - i.e., that the capacitance and effective height may be specified precisely and independently in terms of physical dimensions - the equivalent circuit is completed by including the inductance and loss resistance. With an emphasis on simplicity, electrostatic and magnetostatic theory are applied to the determination of each component of a complete low-frequency equivalent circuit. The results of this analysis were validated with a commercially available finite-element method (FEM) program, applied to three examples that covered a wide range of antenna shapes. From another standpoint, since it has been verified that the electrical properties may be accurately determined with a minimum of calculation, this antenna should also be useful in the opposite sense, as a validation standard for other numerical programs

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