Chaos Generation and Synchronization Using Driven TWT amplifiers having delayed feedback
Abstract
Development of high power sources of chaotic waveforms in the microwave frequency regime is important for communications, noise radar, and other applications. We have demonstrated that driven traveling wave tube (TWT) amplifiers with delayed feedback are excellent sources of chaotic radiation with numerous experimental advantages. The configuration involves a TWT oscillator (using an external feedback loop) which is driven by an external coherent generator. Two types of chaos have been observed in these experiments: a period doubling type and a "loss-of-synchronization" type of chaos. Characterizations have identified single frequency oscillation, self-modulation, and chaos within the parameter space defined by the drive power, drive frequency, and feedback attenuation level. Current investigations are examining synchronization between a pair of driven TWT oscillators.
- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- November 2004
- Bibcode:
- 2004APS..DPPNO1010L