Labels:book | bulletin board | clock | crt screen | monitor | paper | reckoner | scissors | sky | streetlight OCR: LEGEND WAVE FRONT FROM SECTIONS APPROXIMATE CENTER RADIATION EQUIVALENT GENERATOR PHASE SHOWN INSTANTANEOUS VOLTAGE OUTER SPACED INNER fig 1. General principle of operation using a shaped ele- ment. The center of radiation of the outer half-wave sec- tions front of the radiation center for the center sec- tion, giving both spacing and phase difference in the ZL -Special The outer sections may be separately excited shown, joined to the center part. This illustration assumes that the middle half -wave section center-fed
