Patents by Inventor Maha Achour

Maha Achour 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).

  • 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: 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: 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: 20110193656
    Abstract: A device includes a plurality of electrode actuated acoustic resonators coupled to form complementary paths to operate as a filter. Each acoustic resonator has an electrical input and an electrical output that contributes to a static capacitance. A compensation impedance is coupled to at least one of the paths to reduce adverse effects from the static capacitances of the acoustic resonators.
    Type: Application
    Filed: November 19, 2010
    Publication date: August 11, 2011
    Applicant: RAYSPAN CORPORATION
    Inventors: Jean-Luc Erb, Maha Achour
  • 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: 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: 20110050364
    Abstract: Printed multilayer filter design techniques and filters based on metamaterial structures including an extended composite left and right handed (E-CRLH) metamaterial unit cell.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 3, 2011
    Applicant: Rayspan Corporation
    Inventor: 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
  • Patent number: 7855696
    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: Grant
    Filed: March 17, 2008
    Date of Patent: December 21, 2010
    Assignee: Rayspan Corporation
    Inventors: Ajay Gummalla, Marin Stoytchev, Maha Achour, Gregory Poilasne
  • Patent number: 7847739
    Abstract: Techniques, apparatus and systems that use one or more composite left and right handed (CRLH) metamaterial structures in processing and handling electromagnetic wave signals. Antennas and antenna arrays based on enhanced CRLH metamaterial structures are configured to provide broadband resonances for various multi-band wireless communications.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: December 7, 2010
    Assignee: Rayspan Corporation
    Inventors: Maha Achour, Ajay Gummalla, Marin Stoytchev
  • Patent number: 7839216
    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: Grant
    Filed: May 27, 2009
    Date of Patent: November 23, 2010
    Assignee: Rayspan Corporation
    Inventors: Raul Alidio, Alexandre Dupuy, Ajay Gummalla, Woo Yong Lee, Maha Achour
  • Patent number: 7839236
    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: December 21, 2007
    Date of Patent: November 23, 2010
    Assignee: Rayspan Corporation
    Inventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
  • Publication number: 20100283705
    Abstract: Techniques, apparatus and systems that use one or more composite left and right handed (CRLH) metamaterial structures in processing and handling electromagnetic wave signals. Antenna, antenna arrays and other RF devices can be formed based on CRLH metamaterial structures. The described CRLH metamaterial structures can be used in wireless communication RF front-end and antenna sub-systems.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 11, 2010
    Applicant: RAYSPAN CORPORATION
    Inventors: Maha Achour, Ajay Gummalla, Marin Stoytchev, Birkner Franz
  • Publication number: 20100283692
    Abstract: Techniques, apparatus and systems that use one or more composite left and right handed (CRLH) metamaterial structures in processing and handling electromagnetic wave signals. Antenna, antenna arrays and other RF devices can be formed based on CRLH metamaterial structures. The described CRLH metamaterial structures can be used in wireless communication RF front-end and antenna sub-systems.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 11, 2010
    Applicant: RAYSPAN CORPORATION
    Inventors: Maha Achour, Ajay Gummalla, Marin Stoytchev, Franz Birkner
  • Publication number: 20100238081
    Abstract: Techniques, apparatus and systems that use one or more composite left and right handed (CRLH) metamaterial structures in processing and handling electromagnetic wave signals. 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: September 17, 2009
    Publication date: September 23, 2010
    Inventors: Maha Achour, Ajay Gummalla, Marin Stoytchev
  • Publication number: 20100231470
    Abstract: This application relates to slot antenna devices based on Composite Right and Left Handed (CRLH) metamaterial (MTM) structures.
    Type: Application
    Filed: March 12, 2010
    Publication date: September 16, 2010
    Applicant: RAYSPAN CORPORATION
    Inventors: Cheng-Jung Lee, Ajay Gummalla, Maha Achour
  • Publication number: 20100207703
    Abstract: Power amplifying systems and modules and components therein are designed based on CRLH structures, providing high efficiency and linearity.
    Type: Application
    Filed: February 18, 2010
    Publication date: August 19, 2010
    Applicant: RAYSPAN CORPORATION
    Inventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
  • Patent number: 7764232
    Abstract: Techniques, apparatus and systems that use one or more composite left and right handed (CRLH) metamaterial structures in processing and handling electromagnetic wave signals. Antenna, antenna arrays and other RF devices can be formed based on CRLH metamaterial structures. The described CRLH metamaterial structures can be used in wireless communication RF front-end and antenna sub-systems.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: July 27, 2010
    Assignee: Rayspan Corporation
    Inventors: Maha Achour, Ajay Gummalla, Marin Stoytchev, Franz Birkner