Patents by Inventor Erasmo Recami

Erasmo Recami has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9673533
    Abstract: A radial slot antenna comprising a radial waveguide, which includes an upper plate, having a centroid and an edge region and provided with a plurality of radiating apertures, formed as slots in the upper plate, which develop around the centroid. The radiating apertures are arranged to form first and second radiating regions, which are distinct and radially separated by a dwell region without radiating apertures and wherein, in the first and second radiating regions, radially adjacent radiating apertures are separated from one another by a radial distance, the dwell region having a radial width greater than the radial distances of the radiating apertures in the first and second radiating regions. The slot antenna further comprises a signal feeder for supplying am electromagnetic field to assume, in the first and second radiating regions, opposite phases, so that the electromagnetic field emitted by the slot antenna can be expressed via Bessel functions.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: June 6, 2017
    Assignee: SELEX ES S.p.A.
    Inventors: Massimo Balma, Giacomo Guarnieri, Giuseppe Mauriello, Erasmo Recami, Michel Zamboni Rached, Angelo Freni, Agnese Mazzinghi, Matteo Albani
  • Publication number: 20140354498
    Abstract: A radial slot antenna (1; 60) comprising a radial waveguide, which includes an upper plate (5), having a centroid (O) and an edge region (14) and provided with a plurality of radiating apertures (4), formed as slots in the upper plate (5), which develop according to an ideal annular pattern (16) around the centroid (O). The radiating apertures (4) are arranged in such a way as to form at least one first radiating region (31a) and one second radiating region (31b), which are distinct and radially separated by a dwell region (33a) without radiating apertures and wherein, in the first and second radiating regions (31a, 31b), radially adjacent radiating apertures (4) are separated from one another by a respective mutual radial distance, the dwell region (33a) having a radial width (?) greater than the mutual radial distances of the radiating apertures (4) in the first and second radiating regions (31a, 31b).
    Type: Application
    Filed: December 28, 2012
    Publication date: December 4, 2014
    Inventors: Massimo Balma, Giacomo Guarnieri, Giuseppe Mauriello, Erasmo RECAMI, Michel Zamboni Rached
  • Patent number: 8509928
    Abstract: Method for producing a stationary wave field of arbitrary shape comprising the steps of defining at least one volume being limited in the direction of the axis of propagation of a beam, of the type 0?z?L; defining an intensity pattern within the said region 0?z?L by a function F(z), describing the said localized and stationary intensity pattern, which is approximated by means of a Fourier expansion or by a similar expansion in terms of (trigonometric) orthogonal functions; providing a generic superposition of Bessel or other beams highly transversally confined; calculating the maximum number of superimposed Bessel beams the amplitudes, the phase velocities and the relative phases of each Bessel beam of the superposition, and the transverse and longitudinal wavenumbers of each Bessel beam of the superposition.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: August 13, 2013
    Assignee: Bracco Imaging S.P.A.
    Inventors: Valerio Abate, Cesar Augusto Dartora, Hugo Enrique Hernàndez Figueroa, Marco Mattiuzzi, Kleber Zuza Nobrega, Michel Zamboni Rached, Erasmo Recami
  • Publication number: 20110100880
    Abstract: Method for producing a stationary wave field of arbitrary shape comprising the steps of defining at least one volume being limited in the direction of the axis of propagation of a beam, of the type 0?z?L; defining an intensity pattern within the said region 0?z?L by a function F(z), describing the said localized and stationary intensity pattern, which is approximated by means of a Fourier expansion or by a similar expansion in terms of (trigonometric) orthogonal functions; providing a generic superposition of Bessel or other beams highly transversally confined; calculating the maximum number of superimposed Bessel beams the amplitudes, the phase velocities and the relative phases of each Bessel beam of the superposition, and the transverse and longitudinal wavenumbers of each Bessel beam of the superposition.
    Type: Application
    Filed: May 23, 2005
    Publication date: May 5, 2011
    Applicant: Bracco Imaging S.p.A.
    Inventors: Erasmo Recami, Michel Zamboni Rached, Hugo Enrique Hernandez Figueroa, Valerio Abate, Cesar Augusto Dartora, Kleber Zuza Nobrega, Marco Mattiuzzi