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Electrically Small Switchable Chaotic Dipole Antenna

机译：电小可切换混沌偶极天线

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摘要

An electrically small dipole antenna loaded with Chua's oscillator as a nonlinear load is analyzed. By using certain values for the linear reactive and resistive elements of this circuit, various types of periodic, period- doubled, and chaotic behavior that occurs for the voltage at the antenna input terminals is shown to occur also for the associated radiated electromagnetic field components. Using three cases, i.e., periodic, period-4, and chaotic behavior, the voltage characteristic dynamics determined at the input terminals are shown to be the same dynamics as those of the radiated electromagnetic field components. For an electrically small dipole, when the antenna voltage function is temporally chaotic, the antenna is demonstrated numerically to radiate temporally chaotic electromagnetic fields with the same dynamical behavior referenced to some later time also. Similarly, when the antenna voltage is periodic, the radiated fields will be periodically referenced to some later time. Switching between a periodic and a chaotic temporal electromagnetic field behavior is demonstrated to be possible by simply increasing the conductance of a single resistor of the antenna/Chua's oscillator equivalent circuit.

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