Patents by Inventor Subhajit Guha

Subhajit Guha 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: 11460496
    Abstract: A measuring carrier for position-resolved meteorological determination of a measurement variable dependent on the dielectric permittivity of a device under test. The measuring carrier has a supporting means comprising a measuring surface, to which the device under test can be applied, and a measuring transmission line which entirely or partially forms the measuring surface and comprises a multiplicity of transmission line cells for the purpose of transmitting a radio-frequency measurement signal which can be injected at the input port. The measuring surface is structured in a cellular manner, wherein each of the transmission line cells has a cell-individual propagation constant with respect to the radio-frequency measurement signal in a state free of a device under test. This constant differs from the respective cell-individual constants of the other transmission line cells.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 4, 2022
    Assignee: IHP GMBH—INNOVATIONS FOR HIGH PERFORMANCE MICROELECTRONICS/LEIBNIZ-INSTITUT FUR INNOVATIVE MIKROELEKTRONIK
    Inventors: Chafik Meliani, Subhajit Guha, Farabi Ibne Jamal
  • Patent number: 10054722
    Abstract: A tunable plasmon resonator, comprising a plasmon resonance layer made of graphene, a crystalline group-IV-semiconductor material or a crystalline group-III-V semiconductor material, and arranged on a carrier substrate, the plasmon resonance layer having a plasmon resonance region that is exposed to a sensing volume and a tuning device that is integrated into the plasmon resonator and arranged and configured to modify a density of free charge carriers in the plasmon resonance region or to modify an effective mass amount of the free charge carriers in the plasmon resonance region by applying of a control voltage to tuning control electrode(s) of the tuning device, thereby setting a plasmon frequency of plasmon polaritons in the plasmon resonance region to a desired plasmon frequency value within a plasmon frequency tuning interval, for resonance excitation of plasmon polaritons by incident electromagnetic waves of a frequency corresponding to the set plasmon frequency value.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: August 21, 2018
    Assignee: IHP GMBH—INNOVATIONS FOR HIGH PERFORMANCE MICROELECTRONICS/LEIBNIZ-INSTITUT FUR INNOVATIVE MIKROELEKTRONIC
    Inventors: Subhajit Guha, Thomas Schroder, Bernd Witzigmann, Giovanni Capellini
  • Publication number: 20180024176
    Abstract: A measuring carrier for position-resolved meteorological determination of a measurement variable dependent on the dielectric permittivity of a device under test. The measuring carrier has a supporting means comprising a measuring surface, to which the device under test can be applied, and a measuring transmission line which entirely or partially forms the measuring surface and comprises a multiplicity of transmission line cells for the purpose of transmitting a radio-frequency measurement signal which can be injected at the input port. The measuring surface is structured in a cellular manner, wherein each of the transmission line cells has a cell-individual propagation constant with respect to the radio-frequency measurement signal in a state free of a device under test. This constant differs from the respective cell-individual constants of the other transmission line cells.
    Type: Application
    Filed: January 29, 2016
    Publication date: January 25, 2018
    Inventors: Chafik MELIANI, Subhajit GUHA, Ibne Jamal Farabi
  • Publication number: 20170269267
    Abstract: A tunable plasmon resonator, comprising a plasmon resonance layer made of graphene, a crystalline group-IV-semiconductor material or a crystalline group-III-V semiconductor material, and arranged on a carrier substrate, the plasmon resonance layer having a plasmon resonance region that is exposed to a sensing volume and a tuning device that is integrated into the plasmon resonator and arranged and configured to modify a density of free charge carriers in the plasmon resonance region or to modify an effective mass amount of the free charge carriers in the plasmon resonance region by applying of a control voltage to tuning control electrode(s) of the tuning device, thereby setting a plasmon frequency of plasmon polaritons in the plasmon resonance region to a desired plasmon frequency value within a plasmon frequency tuning interval, for resonance excitation of plasmon polaritons by incident electromagnetic waves of a frequency corresponding to the set plasmon frequency value.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 21, 2017
    Inventors: Subhajit Guha, Thomas Schroder, Bernd Witzigmann, Giovanni Capellini