131546.fig.007a
(a)
131546.fig.007b
(b)
131546.fig.007c
(c)
131546.fig.007d
(d)
Figure 7: (a) Realization I of class II type B oscillator [17]. (b) Realization II of class II type-B oscillator. (c) Realization III of class II type-B oscillator. (d) Realization IV of class II type-B oscillator.