232 



M. N. Berdichevskii 



To determine the value — ^ we find the component of the field of the feed 



Qa 



line AB along the tangential direction 0, the radial direction R and the di- 

 rection of the measuring line MN {Eq, E^ and Ej^j^). 



Fig. 5. 



Since in the calculation of q^' and q^ the coefficient of the azimuthal 

 arrangement is taken equal to the same value, then it is obvious that: 



I.e. 



fj, 



Qa 

 Qc 



E 



Emn 

 "Ee 



MN 



Ee 



1 100% 



(17) 



From the formula for conversion of coordinates we obtain: 



Consequently 



Emn a Ej{ . 



— = — = cos A — ^^— sm n . 



t,Q Eq 



Let us derive expressions for the radial and tangential components Ej^ 

 and Eq of the field of the feed line AB at the observation point: 



Ep^ = E^-E^^ E^^ cos oc-E^ cos /S = 



^ AB ^ ^ AB ^ 



R+ -^cosO R — — cos6) 



Ri 



Ro 



