Research on transmitting antennas

All of the characteristics of the batwing radiator, which is the heart of the superturnstile antenna system, are theoretically calculated by using the moment method. The matching condition is obtained on the basis of the characteristics, for the cases of changing the connection of the jumper(s) and of changing the distance between the support mast and the antenna elements. In this paper, a comparative study of the results of theoretical analyses and actual measurements is conducted to determine whether or not the construction of the batwing antenna could be simplified by eliminating the element at its central part, without detracting from its favorable characteristics.