Research Article

Multifrequency Oscillator-Type Active Printed Antenna Using Chaotic Colpitts Oscillator

Figure 3

Time series plot of and with respect to emitter bias voltage of chaotic Colpitts oscillator: (a) and (b) periodic mode for  V, (c) and (d) period-doubled mode for  V, and (e) and (f) chaotic mode for  V.
(a)
(b)
(c)
(d)
(e)
(f)