Patents by Inventor Sunil Kumar Rajgopal

Sunil Kumar Rajgopal 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).

  • Antenna devices having frequency-dependent connection to electrical ground
    Patent number: 9768507
    Abstract: Antenna devices and techniques that provide specific control of the spatial distributions of DC and RF signals at various positions in a wireless apparatus are disclosed. The wireless apparatus includes various device components each having specifications for achieving desired operations in antenna devices.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: September 19, 2017
    Assignee: Tyco Electronics Services GmbH
    Inventors: Sunil Kumar Rajgopal, Cheng Jung Lee, Ajay Gummalla
  • ANTENNA DEVICES HAVING FREQUENCY-DEPENDENT CONNECTION TO ELECTRICAL GROUND
    Publication number: 20150102968
    Abstract: Antenna devices and techniques that provide specific control of the spatial distributions of DC and RF signals at various positions in a wireless apparatus are disclosed. The wireless apparatus includes various device components each having specifications for achieving desired operations in antenna devices.
    Type: Application
    Filed: August 25, 2014
    Publication date: April 16, 2015
    Inventors: Sunil Kumar Rajgopal, Cheng Jung Lee, Ajay Gummalla
  • Enhanced metamaterial antenna structures
    Patent number: 8928530
    Abstract: A wireless device having an antenna structure incorporates a conductive structure to extend an effective length of at least one component of the antenna structure. The enhanced 3-D conductive structure is applicable to a variety of antenna types, including, but not limited to, a CRLH structured antenna.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: January 6, 2015
    Assignee: Tyco Electronics Services GmbH
    Inventors: Maha Achour, Ajay Gummalla, Anders Mattsson, Vaneet Pathak, Gregory Poilasne, Sunil Kumar Rajgopal
  • Multi-functional CRLH antenna device
    Patent number: 8803739
    Abstract: This application relates to a multi-functional Composite Right and Left Handed CRLH antenna device. A conductive element of a wireless device is incorporated into the antenna structure for reuse. In one embodiment a peripheral feature, such as a key dome, is incorporated into the antenna device. In this way, the antenna structure includes portions which are multi-functional.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: August 12, 2014
    Assignee: Tyco Electronics Services GmbH
    Inventors: Sunil Kumar Rajgopal, Ajay Gummalla, Cheng Jung Lee, Vaneet Pathak
  • Non-planar metamaterial antenna structures
    Patent number: 8773313
    Abstract: Antennas for wireless communications based on metamaterial (MTM) structures to arrange one or more antenna sections of an MTM antenna away from one or more other antenna sections of the same MTM antenna so that the antenna sections of the MTM antenna are spatially distributed in a non-planar configuration to provide a compact structure adapted to fit to an allocated space or volume of a wireless communication device, such as a portable wireless communication device.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: July 8, 2014
    Assignee: Tyco Electronics Services GmbH
    Inventors: Nan Xu, Sunil Kumar Rajgopal, Norberto Lopez, Vaneet Pathak, Ajay Gummalla, Gregory Poilasne, Maha Achour
  • Non-planar metamaterial antenna structures
    Patent number: 8299967
    Abstract: Antennas for wireless communications based on metamaterial (MTM) structures to arrange one or more antenna sections of an MTM antenna away from one or more other antenna sections of the same MTM antenna so that the antenna sections of the MTM antenna are spatially distributed in a non-planar configuration to provide a compact structure adapted to fit to an allocated space or volume of a wireless communication device, such as a portable wireless communication device.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: October 30, 2012
    Assignee: Tyco Electronics Services GmbH
    Inventors: Nan Xu, Sunil Kumar Rajgopal, Norberto Lopez, Vaneet Pathak, Ajay Gummalla, Gregory Poilasne, Maha Achour
  • ENHANCED METAMATERIAL ANTENNA STRUCTURES
    Publication number: 20120001826
    Abstract: A wireless device having an antenna structure incorporates a conductive structure to extend an effective length of at least one component of the antenna structure. The enhanced 3-D conductive structure is applicable to a variety of antenna types, including, but not limited to, a CRLH structured antenna.
    Type: Application
    Filed: March 3, 2011
    Publication date: January 5, 2012
    Inventors: Maha Achour, Ajay Gummalla, Anders Mattsson, Vaneet Pathak, Gregory Poilasne, Sunil Kumar Rajgopal
  • MULTI-FUNCTIONAL CRLH ANTENNA DEVICE
    Publication number: 20110267244
    Abstract: This application relates to a multi-functional Composite Right and Left Handed CRLH antenna device. A conductive element of a wireless device is incorporated into the antenna structure for reuse. In one embodiment a peripheral feature, such as a key dome, is incorporated into the antenna device. In this way, the antenna structure includes portions which are multi-functional.
    Type: Application
    Filed: March 2, 2011
    Publication date: November 3, 2011
    Inventors: Sunil Kumar Rajgopal, Ajay Gummalla, Cheng Jung Lee, Vaneet Pathak
  • Non-Planar Metamaterial Antenna Structures
    Publication number: 20090295660
    Abstract: Antennas for wireless communications based on metamaterial (MTM) structures to arrange one or more antenna sections of an MTM antenna away from one or more other antenna sections of the same MTM antenna so that the antenna sections of the MTM antenna are spatially distributed in a non-planar configuration to provide a compact structure adapted to fit to an allocated space or volume of a wireless communication device, such as a portable wireless communication device.
    Type: Application
    Filed: May 13, 2009
    Publication date: December 3, 2009
    Applicant: RAYSPAN CORPORATION
    Inventors: Nan Xu, Sunil Kumar Rajgopal, Norberto Lopez, Vaneet Pathak, Ajay Gummalla, Gregory Poilasne, Maha Achour