RADIATION CHARACTERISTICS OF AN ANTENNA. 



245 



terms of the ratio of the wav(>len<;tli employed to the natural wave- 

 length (that is X/Xo) and the ratio of the length of flat-top to total 

 length of antenna (that is 7). Figure 15 is merely a magnified view of 

 certain of the curves that are too small to read on Figure 14. 



7 



1.6 



1.4 



1.2 



1.0 



(J -o 



z 



< 



h- 



(D .6 

 </) 



UJ 



^ A 



.2 



10 



IZ 



14 



2 4 6 8 



Figure 15. Extension of curves of Figure 14 to larger values of X/Xo. 



lb 



23. Total Radiation Resistance of a Straight Vertical 

 Antenna at Various Wavelengths Obtained by Inductance at 

 the Base. — As an example, let it be required to find the total radiation 



