Table 1. Effect of coupling dispersion on the ratio of the area of the delay zone to the advance zone.

η Kf	0.01	0.02	0.03	0.04
0.00	0.69	0.70	0.71	0.73
0.05	0.82	0.85	0.89	0.92
0.15	1.80	1.40	1.40	1.40

The ratio increases with increasing coupling dispersion.