Annular Patch
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Gasparyan Method of Total Autologous Reconstruction of the Aortic Valve
Abstract In this case report, I describe a new technique for total reconstruction of the aortic valve with autologous pericardium. The parameters of the cusps were calculated using very simple formulas after measurement of the aortic root intercommissural distances. Glutaraldehyde-treated pericardium was trimmed along the marked line, leaving 2 mm of tissue
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-10
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2. Rectangular notch loaded dual band annular ring patch antenna
In this article, a dual band annular ring patch antenna is theoretically investigated using the equivalent circuit concept.Two symmetrical rectangular notches are etched in radiating ring patch with respect to feed point. It is observed that the resonant frequency is directly proportional to the notch width and notch length. The bandwidth of the antenna at l
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2014-06
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3. Antenas de microfita com patch em anel e múltiplas camadas dielétricas anisotrópicas uniaxiais
This work presents an analysis of the annular ring microstrip antennas printed on uniaxial anisotropic substrates and with superstrate.The analysis uses the full-wave formulation by means of the Hertz vector potentials method, in the Hankel transform domain. The definition of the Hertz vector potentials and the application of the appropriate boundary conditi
Publicado em: 2006