Patents by Inventor Ajay Gummalla

Ajay Gummalla 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: 8294533
    Abstract: Techniques, apparatus and systems that use composite left and right handed (CRLH) metamaterial structures to combine and divide electromagnetic signals at multiple frequencies. The metamaterial properties permit significant size reduction over a conventional N-way radial power combiner or divider. Dual-band serial power combiners and dividers and single-band and dual-band radial power combiners and dividers are described.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: October 23, 2012
    Assignee: Hollinworth Fund, L.L.C.
    Inventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
  • Publication number: 20120258677
    Abstract: Implementations and examples of power amplifier devices, systems and techniques for amplifying RF signals, including power amplifier systems based on Composite Right and Left Handed (CRLH) metamaterial (MTM) structures.
    Type: Application
    Filed: May 11, 2012
    Publication date: October 11, 2012
    Applicant: Hollinworth Fund, L.L.C.
    Inventors: Alexandre DUPUY, Raul ALIDIO, Ajay GUMMALLA, Maha ACHOUR, Cheng-Jung LEE, Can ZHENG
  • Publication number: 20120169414
    Abstract: Power amplifying systems and modules and components therein are designed based on CRLH structures, providing high efficiency and linearity.
    Type: Application
    Filed: March 2, 2012
    Publication date: July 5, 2012
    Inventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
  • Publication number: 20120161867
    Abstract: Power amplifying systems and modules and components therein are designed based on CRLH structures, providing high efficiency and linearity.
    Type: Application
    Filed: March 2, 2012
    Publication date: June 28, 2012
    Inventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
  • Patent number: 8180303
    Abstract: Implementations and examples of power amplifier devices, systems and techniques for amplifying RF signals, including power amplifier systems based on Composite Right and Left Handed (CRLH) metamaterial (MTM) structures.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: May 15, 2012
    Assignee: Hollinworth Fund, L.L.C.
    Inventors: Alexandre Dupuy, Raul Alidio, Ajay Gummalla, Maha Achour, Cheng-Jung Lee, Can Zheng
  • Patent number: 8154340
    Abstract: Power amplifying systems and modules and components therein are designed based on CRLH structures, providing high efficiency and linearity.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: April 10, 2012
    Assignee: Hollinworth Fund, LLC
    Inventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
  • 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
  • Publication number: 20120001804
    Abstract: A variety of configurations for a CRLH structured antenna in a wireless device are presented. An antenna having portions of the CRLH structure positioned on different layers provides an elevated structure. An antenna is presented having a double folded antenna structure, wherein a cell patch includes extensions on multiple layers of a substrate.
    Type: Application
    Filed: February 4, 2011
    Publication date: January 5, 2012
    Inventors: Vaneet Pathak, Gregory Poilasne, Shane Thornwall, Tzung-I Lee, Alan Pasion, Norberto Lopez, Ajay Gummalla
  • Publication number: 20110273348
    Abstract: A wireless device incorporating an antenna made of Composite Right Left Hand (CRLH) structures, having a connection element coupling a portion of the antenna to a ground electrode. In some embodiments a wireless device has one or more mechanical connection units made of electrically conductive materials to provide both mechanical engagement and electrical conduction for the antenna devices.
    Type: Application
    Filed: April 8, 2011
    Publication date: November 10, 2011
    Inventors: Norberto Lopez, Ajay Gummalla
  • Publication number: 20110273353
    Abstract: A wireless device having a CRLH antenna structure incorporates a meander line at the feed and adds a three dimensional conductive structure to shift a meander mode resonance frequency.
    Type: Application
    Filed: March 4, 2011
    Publication date: November 10, 2011
    Inventors: Maha Achour, Ajay Gummalla, Vaneet Pathak
  • 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
  • Publication number: 20110227795
    Abstract: Antenna structures and configurations which incorporate alignment keys and support structures which mate Composite Right and Left Handed (CRLH) metamaterial (MTM) structures formed on two or more substrates.
    Type: Application
    Filed: February 1, 2011
    Publication date: September 22, 2011
    Inventors: Norberto Lopez, Nan Xu, Ajay Gummalla, Vaneet Pathak, Maha Achour
  • Publication number: 20110210787
    Abstract: A system includes a plurality of band pass filters to pass signals in separated frequency bands to or from an antenna. A matching network provides characteristic impedances. The system is designed such that the configuration of the matching network and BPFs provides high impedance to the band pass filters for those routing paths other than the band pass path as these routing paths do not transmit or receive the signals at this particular pass band. The system is further designed such that the configuration of the matching network and BPFs provides minimal insertion loss for the band pass path of for transmission and receipt of signals at this particular pass band, where each routing path has a corresponding pass band. The matching network is for coupling to an amplifier, when frequency separation is needed at the output of the amplifier to the BPFs. In one embodiment an impedance network tunes the impedance by using varying length transmission lines.
    Type: Application
    Filed: February 3, 2011
    Publication date: September 1, 2011
    Inventors: Woo Yong Lee, Ajay Gummalla, Maha Achour, Cheng Jung Lee
  • Publication number: 20110175789
    Abstract: Architectures and implementations of a transceiver system for wireless communications are presented, the system including one or more antennas supporting a single frequency band or multiple frequency bands, a transmit circuit, a receive circuit, and an isolation circuit that is coupled to the one or more antennas and the transmit and receive circuits and provides adequate isolation between the transmit circuit and the receive circuit.
    Type: Application
    Filed: November 9, 2010
    Publication date: July 21, 2011
    Applicant: RAYSPAN CORPORATION
    Inventors: Cheng Jung Lee, Nhan Duc Nguyen, Ajay Gummalla
  • Publication number: 20110156963
    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: December 30, 2009
    Publication date: June 30, 2011
    Applicant: Rayspan Corporation
    Inventors: Sunil Rajgopal, Cheng-Jung Lee, Ajay Gummalla
  • Publication number: 20110109402
    Abstract: Techniques, apparatus and systems that use composite left and right handed (CRLH) metamaterial structures to combine and divide electromagnetic signals at multiple frequencies. The metamaterial properties permit significant size reduction over a conventional N-way radial power combiner or divider. Dual-band serial power combiners and dividers and single-band and dual-band radial power combiners and dividers are described.
    Type: Application
    Filed: October 1, 2010
    Publication date: May 12, 2011
    Applicant: RAYSPAN CORPORATION
    Inventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
  • Publication number: 20110095964
    Abstract: Metamaterial antenna devices having one or more mechanical connection units made of electrically conductive materials to provide both mechanical engagement and electrical conduction for the antenna devices.
    Type: Application
    Filed: October 22, 2009
    Publication date: April 28, 2011
    Applicant: RAYSPAN CORPORATION
    Inventors: Vaneet Pathak, Ajay Gummalla
  • Publication number: 20110068873
    Abstract: Designs and techniques associated with power amplifiers for amplifying RF signals to provide variable power amplification and improved linearity in various RF amplification circuits, including power amplifiers operated under the power back-off conditions.
    Type: Application
    Filed: September 30, 2010
    Publication date: March 24, 2011
    Applicant: RAYSPAN CORPORATION
    Inventors: Raul Alidio, Alexandre Dupuy, Ajay Gummalla, Woo Yong Lee, Maha Achour
  • Publication number: 20110039501
    Abstract: Antenna structure having a ground electrode formed outside a footprint of a conductive patch, wherein the conductive patch is a radiating element of the antenna structure. The antenna structure in one embodiment is a composite left and right handed (CRLH) based structure. Antennas and antenna arrays based on enhanced CRLH metamaterial structures are configured to provide broadband resonances for various multi-band wireless communications.
    Type: Application
    Filed: October 28, 2010
    Publication date: February 17, 2011
    Applicant: RAYSPAN CORPORATION
    Inventors: Maha Achour, Ajay Gummalla, Marin Stoytchev
  • Publication number: 20110026624
    Abstract: Apparatus, systems and techniques for using composite left and right handed (CRLH) metamaterial (MTM) structure antenna elements and arrays to provide radiation pattern shaping and beam switching.
    Type: Application
    Filed: August 3, 2010
    Publication date: February 3, 2011
    Applicant: RAYSPAN CORPORATION
    Inventors: Ajay Gummalla, Marin Stoytchev, Maha Achour, Gregory Poilasne