Generating TACAN antenna radiation diagram - by choice of sidebands fed to antenna elements arranged on circle

摘要

An unmodulated signal is fed to each of the 36 antenna elements, each sideband at 135 Hz and onyl one sideband at 15Hz. The sideband at at 15Hz is continuously fed into a pair of adjacent antenna elements elements. Adjacent elements can receive the same sideband but with an additional phase offset. They can receive the first or second sidebands. The antenna elements are arranged on a circle and are more than 27 in number. USE/ADVANTAGE - For generating radiation pattern for TACAN antenna using less complicated networks than conventional methods.