086 



THE BELL SYSTEM TECHNICAL JOURNAL, ^L\V 1954 



0.5 1.0 1.5 2.0 2.5 3.0 3.5 4 4 5 5 5.5 6.0 6 5 7.0 

 CX IN RADIANS 

 Fig. 23 — Driven line wave amplitude versus ci with equal phase constants 

 and (ai — a2)/c as a parameter. The curve for {a.\ — a-^^/c = is periodic. 



For integrated coupling strengths greater than 7r/2 the effect of small 

 values of (ai — a^^lc is to increase the loss to £"1**, as shown by the 

 curve for ex = 37r/4 in Fig. 21. However, for sufficiently large values of 

 (ai — a-2)/c the loss to El** is made small. 



The variation in £'1** and £"2** as a function of coupling strength (ex) 

 is given in Figs. 23 and 24. The periodicity of Ei** is removed for 



-100 



-60 

 -40 



-20 



-10 

 -6 

 -4 



-0.6 

 -0.4 



-0.06 

 -0.04 



-0.02 

 -0.01 



5.0 5.5 6.0 &5 7.0 



0.5 ID 1.5 2.0 2.5 3.0 3.5 4.0 4.5 



CX IN RADIANS 



Fig. 24 — Undriven line wave amplitude versus ex. with equal phase constants 

 and (ai — a.'i)/c as a parameter. The curve for {ax — a.i)/c = is periodic. 



