Electronically scanned TACAN antenna

This paper describes the principles of operation of the Tactical Air Navigation (TACAN) antenna system and compares the performance characteristics of the mechanically rotated with a proposed electronically scanned system. An analysis is provided of the various factors involved in the design of an electronically scanned TACAN antenna. The discussions in this paper serve as an introduction to a paper in this issue which describes the design, fabrication, test, and evaluation of one example of an experimental model of an electronically scanned cylindrical TACAN antenna array [1].