Concerning New Methods of Calculating Radiation Resistance, Either with or without Ground

New general methods of computing radiation resistance, either with or without ground, are described and illustrated by example. The formulas are general, exact, and practical, and allow the calculations to be made for any form of antenna over a plane earth of arbitrary characteristics. As the mathematical basis of these methods has been explained elsewhere the present paper gives no proofs or derivations of formulas but rather illustrates the method of use of the theory by computing radiation resistances for a number of typical antennas. In connection with these computations various timesaving graphical methods are explained and tables of functions and expansions useful in the calculations are given.