author = "Rangel, Elizete Gon{\c{c}}alves Lopes and Barroso de Castro, 
                         Joaquim Jos{\'e} and Rossi, Jos{\'e} Osvaldo and Yamasaki, 
                         Fernanda S. and Silva Neto, Lauro Paulo da and Schamiloglu, Edl",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {University of New Mexico}",
                title = "Influence of Input Pulse Shape on RF Generation in Nonlinear 
                         Transmission Lines",
              journal = "IEEE Transactions on Plasma Science",
                 year = "2016",
               volume = "44",
               number = "10",
                pages = "2258--2267",
                month = "Oct.",
             keywords = "Nonlinear components, nonlinear transmission lines (NLTLs), RF 
                         generation, soliton, varactor diode.",
             abstract = "Nonlinear transmission lines (NLTLs) are nonlinear LC ladder 
                         networks that can act as a nonlinear and dispersive medium, thus 
                         allowing the generation of soliton bursts. Several papers have 
                         been published indicating that NLTLs offer a new option for pulse 
                         shaping and RF generation. In this paper, we investigated the 
                         response of an NLTL driven by three different pulse shapes: a 
                         rectangular, a half sine, and a triangular waveform. The 
                         performance of the NLTL was evaluated through time- and 
                         frequency-domain analysis of the RF signal sampled at the 29th 
                         section of a 30-section capacitive NLTL. The frequency of the 
                         generated RF signal is correlated with the shape of the input 
                         signal, whereby the output frequency can be adjusted by the 
                         amplitude-time characteristics of the pulse at the input of the 
                         capacitive NLTL. Higher frequency oscillations, around 30 MHz, 
                         were generated by the rectangular wave train due to its shorter 
                         rise time. The propagation of solitons along the NLTL is 
                         influenced by the input pulse rise time. Namely, the rectangular 
                         pulse showed smaller delay time as it had the shortest rise time 
                         (less than 10 ns). Maximum efficiency was obtained for the input 
                         pulsewidth of 150 ns under a duty cycle of 1/3 for the three pulse 
                         shapes (rectangular, half sine, and triangular), and this 
                         combination of parameters yielded the highest RF conversion 
                         efficiency of the NLTL. The capacitive NLTL showed a higher RF 
                         conversion efficiency (16.4%) when driven by the rectangular input 
                  doi = "10.1109/TPS.2016.2593606",
                  url = "http://dx.doi.org/10.1109/TPS.2016.2593606",
                 issn = "0093-3813",
             language = "en",
           targetfile = "rangel_influence.pdf",
        urlaccessdate = "28 nov. 2020"