Energy unidirectional transmission in an asymmetrically finite transmission line |
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| Authors: | Tao Feng Chen Wei-Zhong Xu Wen and Du Si-Dan |
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| Affiliation: | Key Laboratory of Modern Acoustics of Ministry of Education, and Institute of Acoustics, Nanjing University, Nanjing 210093, China; School of Electrical Engineering & Information, Anhui University of Technology, Ma’anshan 243002, China; School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China |
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| Abstract: | The phenomenon of energy unidirectional transmission is numerically investigated by using a system of two coupled discrete nonlinear electrical transmission lines, each line of the network contains a finite number of cells and has different pass band structures, respectively. Using numerical simulations, we examine the frequency multiplication of the driving frequency and the lattice filtering effect in the line. These lead to the generation of energy unidirectional transmission. In the present work, energy is carried by the second harmonic wave in the pass band. In addition, we also study the dependence of the energy efficiency on the driving amplitude and other parameters of the model, such as the system size and the nonlinear coefficient, by calculation. Furthermore, after detailed numerical simulation, an experimental demonstration is realized. The experimental results agree with those in simulation qualitatively. |
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| Keywords: | energy unidirectional nonlinear transmission line linear wave |
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