The measurement of self and mutual impedances

There are two well-known methods which can be used to measure the self and mutual impedances of identical, parallel antennas, the symmetric-antisymmetric method, and the open circuit-short circuit method. In principle, these methods are quite simple and straightforward. In practice, however, major difficulties arise in both methods. In this paper, it is shown that by using a part of each method, the self and mutual impedances can be measured quite easily and to a good degree of accuracy.