Labels:book | reckoner | sky | windowpane OCR: element) are presented in fiqure 13 the The 3-e 3-dB E ement and 0 L plane antenna beamwi dths shown in measured igure 660 4 pue 111 respect ively The beamw idth measured oLs pue the and ) lanes respect ive The ane ron -to -s ide rat in the order whi the rad iat ion to the rear was down from that the forward direct on The radi iat ion of the e ement 0.81 Yagi presen ted in figure characteri zed by TF beamw idth of and 560 r the and lanes respect ve The ane front ide ratio rema ined compar rabl to the 3- ement an enna however the front -to back rat was improved cons de abl and measured dB rad ati ion pat terns of 13 and 15-e lement Yagis as shown igures 16 through the beamwidths became progres sively smaller as was expec ted with increased gain DESIGNING THE YAGI ANTENNA To facilitate the d ...