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Quasi-vertical Schottky-structures for THZ-applications

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dc.contributor.author COJOCARI, O.
dc.contributor.author SYDLO, C.
dc.contributor.author HARTNAGEL, H.-L.
dc.contributor.author TIGINYANU, I. M.
dc.date.accessioned 2019-10-21T09:08:54Z
dc.date.available 2019-10-21T09:08:54Z
dc.date.issued 2005
dc.identifier.citation COJOCARI, O., SYDLO, C., HARTNAGEL, H.-L. et al. Quasi-vertical Schottky-structures for THZ-applications. In: Microelectronics and Computer Science: proc. of the 4th intern. conf., September 15-17, 2005. Chişinău, 2005, vol. 1, pp. 219-225. ISBN 9975-66-038-X. en_US
dc.identifier.isbn 9975-66-038-X
dc.identifier.uri http://repository.utm.md/handle/5014/4900
dc.description.abstract This paper presents the results of a systematical work on the improvement of high-frequency performance of quasi-vertical structures for THz-applications. Three versions of structure-design based on a quasi-vertical concept were successfully fabricated and characterized. The anti-parallel mixer-diode pair demonstrated a high performance at frequencies up to around 200 GHz. Measurements at frequencies about 600 GHz of a single diode structure mounted in a heterodyne mixer revealed a voltage responsivity of more than 1500 V/W and conversion loss (SSB) of bellow 10 dB. Microwave-noise measurements of such structure revealed typical values of the junction noise to be lower than 300 K at frequencies between 2.1 GHz and 4.8 GHz and at a bias current up to 3 mA. Low-frequency noise of these diodes is typically about 4 μV/Hz1/2 at 1 Hz. Achieved DC-characteristics are as follows: series resistance Rs < 7 Ω, ideality factor η < 1.2 and junction capacitance at 0 V C0j < 2.3 fF. The total capacitance of this structure is C0 < 7 fF. These data result in a calculated cut-off-frequency of well above 3 THz. en_US
dc.language.iso en en_US
dc.publisher Technical University of Moldova en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject Schottky diodes en_US
dc.subject diodes en_US
dc.subject quasi-vertical structures en_US
dc.subject THz-applications en_US
dc.title Quasi-vertical Schottky-structures for THZ-applications en_US
dc.type Article en_US


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