rio mercader (11 risultati)

Condizione: New.

Hardback. Condizione: New. The cross-section method is an analytical tool used in the design of components required for low-loss, highly efficient transmission of electromagnetic waves in nonuniform waveguides. When the waveguide dimensions are large compared with the wavelength, a fully three-dimensional analysis employing modern numerical methods based on finite element, finite difference, finite integration or transmission line matrix formalisms is practically impossible and the cross-section method is the only feasible analysis technique. The method is not limited to oversized tubular metallic waveguides, but is employed intensively in areas such as fibre optic communications, antenna synthesis, natural waveguides (submarine, tropospheric and seismic), microwave radio links (Earth or space) and the design of absorbing surfaces and it may also be applied to many acoustic problems. The application of the method in special cases such as cut-off and resonant frequencies is covered, as well as the design of oversized waveguide components such as tapers, bends, polarisers and mode converters. Many useful formulas are given for the practical layout of such transmission line components. The use of computers in the application of the method and problems related to numerical analysis are also covered.

Condizione: As New. Unread book in perfect condition.

Condizione: New.

Condizione: As New. Unread book in perfect condition.

Hardback. Condizione: New. The cross-section method is an analytical tool used in the design of components required for low-loss, highly efficient transmission of electromagnetic waves in nonuniform waveguides. When the waveguide dimensions are large compared with the wavelength, a fully three-dimensional analysis employing modern numerical methods based on finite element, finite difference, finite integration or transmission line matrix formalisms is practically impossible and the cross-section method is the only feasible analysis technique. The method is not limited to oversized tubular metallic waveguides, but is employed intensively in areas such as fibre optic communications, antenna synthesis, natural waveguides (submarine, tropospheric and seismic), microwave radio links (Earth or space) and the design of absorbing surfaces and it may also be applied to many acoustic problems. The application of the method in special cases such as cut-off and resonant frequencies is covered, as well as the design of oversized waveguide components such as tapers, bends, polarisers and mode converters. Many useful formulas are given for the practical layout of such transmission line components. The use of computers in the application of the method and problems related to numerical analysis are also covered.

Condizione: New. &Uumlber den AutorrnrnB.Z. Katsenelenbaum is Chief Scientist at the Institute of Radio Engineering and Electronics of the Russian Academy of Sciences.Inhaltsverzeichnisrnrnn Chapter 1: The method of small nonu.

tapa blanda. Condizione: Bien. Biografías (929 Mercader, Ramón) Ramón Mercader mi hermano: cincuenta años después Espasa-Calpe. Madrid. 1990. 25 cm. 292 p. il. Encuadernación en tapa blanda de editorial ilustrada. Mercader del Río, Luis 1923-1998. Con la colaboración de Rafael Llanos. Biografías Espasa. Nuestro tiempo. Mercader, Ramón. 1914-1978. Sánchez, Germán. 1951- . ISBN: 8423922286 (=3273083=) LO197.

Hardcover. Condizione: Brand New. 249 pages. 9.25x6.25x0.75 inches. In Stock.

Telecomunicación Electrónica Comunicaciones Ingeniería Apuntes Ed. Universidad Politécnica de Madrid. 54 págs. 21 x 30 cm. Un par de subrayados. Manual para realizar el trabajo de laboratorio: Moculación y demodulación de amplitud. Etapas de audiofrecuencia y de FI. Receptor de señales AM GASTOS DE ENVÍO ORDINARIO HASTA 1 KILO, GRATIS. (3,50 el Kilo de más o fracción) Los PEDIDOS DE MENOS DE 6 euros tienen unos gastos de 1 euro.

Ingeniería de Telecomunicaciones Comunicación Electrónica Ed. Escuela Ingenieros de Telecomunicación. 89 págs. 21 x 30 cm. Algún subrayado, pero bien. Manual de instrucciones (apuntes) para realizar el trabajo de laboratorio. Laboratorio de Electrónica de Comunicaciones GASTOS DE ENVÍO ORDINARIO HASTA 1 KILO, GRATIS. (3,50 el Kilo de más o fracción) Los PEDIDOS DE MENOS DE 6 euros tienen unos gastos de 1 euro.