The electromagnetic radiation from sources above an ideally conducting expanding sphere

Electromagnetic fields are considered which are created by external currents of the traveling-wave type above an ideally conducting expanding sphere. A specific calculation is carried out, and the shape of the pulse is discussed as a function of the parameters of the problem.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 15, No. 2, pp. 211–220, February, 1972.The author thanks V. N. Krasil'nikov for the stated problem, and A. A. Andronov and V. I. Semenova for discussing the results of the work.