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		<doi>10.1063/5.0067931</doi>
		<issn>0034-6748</issn>
		<citationkey>RossiYBGRTSS:2022:RFGeUs</citationkey>
		<title>RF generation using a compact bench gyromagnetic line</title>
		<year>2022</year>
		<month>Feb.</month>
		<typeofwork>journal article</typeofwork>
		<secondarytype>PRE PI</secondarytype>
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		<author>Rossi, José Osvaldo,</author>
		<author>Yamasaki, Fernanda Sayuri,</author>
		<author>Barroso, Joaquim José,</author>
		<author>Greco, Ana Flávia Guedes,</author>
		<author>Rangel, Elizete Gonçalves Lopes,</author>
		<author>Teixeira, André Ferreira,</author>
		<author>Silva Neto, Lauro Paulo da,</author>
		<author>Schamiloglu, E.,</author>
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		<orcid>0000-0002-1421-163X</orcid>
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		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Universidade Federal de São Paulo (UNIFESP)</affiliation>
		<affiliation>University of New Mexico (UNM)</affiliation>
		<electronicmailaddress>jose.rossi@inpe.br</electronicmailaddress>
		<electronicmailaddress>fernandayamasaki@hotmail.com</electronicmailaddress>
		<electronicmailaddress>jjbarroso7@gmail.com</electronicmailaddress>
		<electronicmailaddress>anaflaviaguedesgreco@gmail.com</electronicmailaddress>
		<electronicmailaddress>elizete.rangel@inpe.br</electronicmailaddress>
		<electronicmailaddress>andre-zth@hotmail.com</electronicmailaddress>
		<journal>Review of Scientific Instruments</journal>
		<volume>93</volume>
		<number>2</number>
		<pages>e024707</pages>
		<secondarymark>A1_ENGENHARIAS_IV A2_INTERDISCIPLINAR A2_ENGENHARIAS_III B1_ENGENHARIAS_II B1_ASTRONOMIA_/_FÍSICA B2_ODONTOLOGIA B2_MEDICINA_I B3_QUÍMICA B3_MATERIAIS B3_ENSINO B3_CIÊNCIAS_BIOLÓGICAS_I</secondarymark>
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		<abstract>The search for new technologies aiming to reach radiofrequency (RF) generation in different manners for diverse ends is a constant demand for several applications. The goal is to develop cost-effective and simpler systems compared to those that already exist. Our motivation is to reach an alternative way of generating RF in pulsed transmission systems employing a gyromagnetic nonlinear transmission line (GNLTL). The GNLTL consists of a ferrite-loaded-coaxial transmission line and can produce a large frequency spectrum with RF conversion efficiency above 10% from about 200 MHz up to the frequency of 2-4 GHz (S-band) for potential space-based applications. In a GNLTL, the signal amplitude is related to its propagation velocity since the peak voltage travels faster than its portion of lower amplitudes since the ferrite permeability decreases with the current amplitude. As the pulse crest travels faster than its valley, a time reduction happens in the output rise time, called pulse sharpening. Besides, the magnetic moments of ferrite dipoles initially aligned with the axial magnetic bias are displaced from their original position by the azimuthal field generated around the inner conductor by the current pulse, resulting in a damped precession movement. This movement happens along the line length as the current pulse propagates, inducing high-frequency oscillations. In short, the paper's goal is to present the experimental results using a 60-cm gyromagnetic line to provide RF in the GHz range using a solenoid for magnetic bias on a testing bench. Finally, the paper discusses the influence of the azimuthal and the axial magnetic fields on the output signal with the ferrite rings operating in a saturation state during the current pulse propagation.</abstract>
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		<language>en</language>
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