A STEP-BY-STEP METHOD ON DIRECTIVITY SYNTHESIS （Ⅰ）——IN CASE OF EXTREME VALUE

Author ever proposed a step-by-step method in order to solve the problems on directivity synthesis. In this paper this method is developed and perfected further; Some conclutions in this method are proved theoretically.
The physical meaning and the optimum characteristic on this method are clarified much clearly, The fit way and the fit condition between synthesis functions and expected functions are discussed in detail. Some basic properties of directivity functions are discussed.