Theory of Radio AntennÆ

Abstract

THE theory of radio transmitting and receiving aerials is by no means an easy branch of electro-magnetism. Aerial theory forms the bridge between the theory of circuits and transmission-lines on one hand and the theory of wave-propagation in space (that is, space more or less free from boundaries) on the other. Aerial theory thus has to face the difficulties of both fields without the simplifications of either. Useful progress largely depends on knowing when, how and how far to permit infiltration of simplifications from both sides. Progress has not therefore been easy, and misunderstandings have been common. However, the widespread development of aerials for radar and radio communication during the War, sometimes along novel lines, has served to clarify the issues involved. The time is therefore ripe for setting down on paper connected accounts of the progress so far made in the development of aerials, and of aerial theory in particular.

Antennæ

An Introduction to their Theory. By J. Aharoni. Pp. viii + 266. (Oxford: Clarendon Press; London: Oxford University Press, 1946.) 25s. net.