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BEI.L SYSTEM TECHNICAL JOURNAL 



Zi/AZn will not, in general, be a numeric but a vector. However, the 

 general formula (8), still holds true with dissipation. For determining 

 the attenuation constant and phase constant of a dissipativc structure 

 it is convenient to use two formulae which may be derived from (8). 

 These formulae are 



where 



A =cosh ■(a- + .J(jj;_i).+4k;cos»|). 

 S = c(.s '( - A' + \/A'= + 2A: cos «+ 1), 



(22) 

 (23) 



'8- •-— j^asc Conmant of ,i Kilter S« lion lixiirisscd in Terms of the f<atio of Its 

 Scrio Impedance to Four Times Its Shunt Ini|)eiiance (i.e., 2,/4Z, S A'j z*. 



