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).

  • Antennas, devices and systems based on metamaterial structures
    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
  • POWER AMPLIFIER ARCHITECTURES
    Publication number: 20100176880
    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 28, 2009
    Publication date: July 15, 2010
    Applicant: Rayspan Corporation
    Inventors: Alexandre Dupuy, Raul Alidio, Ajay Gummalla, Maha Achour, Cheng-Jung Lee, Can Zheng
  • RF FRONT-END MODULE AND ANTENNA SYSTEMS
    Publication number: 20100157858
    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: December 17, 2009
    Publication date: June 24, 2010
    Applicant: RAYSPAN CORPORATION
    Inventors: Cheng-Jung Lee, Woo Yong Lee, Ajay Gummalla, Nhan Duc Nguyen, Vladimir Penev, Maha Achour, Gregory Poilasne
  • MULTI-METAMATERIAL-ANTENNA SYSTEMS WITH DIRECTIONAL COUPLERS
    Publication number: 20100117908
    Abstract: Examples of apparatus and techniques for providing metamaterial (MTM) multi-antenna array systems with directional couplers for various applications.
    Type: Application
    Filed: December 20, 2008
    Publication date: May 13, 2010
    Applicant: Rayspan Corporation
    Inventors: Cheng-Jung Lee, Ajay Gummalla, Maha Achour, Vaneet Pathak
  • FILTER DESIGN METHODS AND FILTERS BASED ON METAMATERIAL STRUCTURES
    Publication number: 20100109805
    Abstract: 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: November 17, 2008
    Publication date: May 6, 2010
    Applicant: Rayspan Corporation
    Inventor: Maha Achour
  • METAMATERIAL STRUCTURES WITH MULTILAYER METALLIZATION AND VIA
    Publication number: 20100109971
    Abstract: Techniques and apparatus based on metamaterial structures are provided for antenna and transmission line devices, including multilayer metallization metamaterial structures with one or more conductive vias connecting conductive parts in two different metallization layers.
    Type: Application
    Filed: November 13, 2008
    Publication date: May 6, 2010
    Applicant: Rayspan Corporation
    Inventors: Ajay Gummalla, Maha Achour, Norberto Lopez, Shane Thornwall, Nhan Nguyen, Gregory Poilasne
  • POWER COMBINERS AND DIVIDERS BASED ON COMPOSITE RIGHT AND LEFT HANDED METAMATERIAL STRUCTURES
    Publication number: 20100109803
    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: December 21, 2007
    Publication date: May 6, 2010
    Applicant: Rayspan Corporation
    Inventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
  • ADVANCED ACTIVE METAMATERIAL ANTENNA SYSTEMS
    Publication number: 20100110943
    Abstract: Techniques, antenna systems and apparatus based on composite right and left handed (CRLH) metamaterial (MTM) structures to couple CRLH MTM circuits to transistors to amplify signals in wireless RF receivers and transmitters.
    Type: Application
    Filed: March 9, 2009
    Publication date: May 6, 2010
    Applicant: Rayspan Corporation
    Inventors: Ajay Gummalla, Cheng-Jung Lee, Alexandre Dupuy, Maha Achour
  • Metamaterial Loaded Antenna Devices
    Publication number: 20100073254
    Abstract: Techniques and devices based on antenna structures with a MTM loading element.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 25, 2010
    Applicant: RAYSPAN CORPORATION
    Inventors: Cheng-Jung Lee, Ajay Gummalla, Maha Achour
  • Single Cable Antenna Module for Laptop Computer and Mobile Devices
    Publication number: 20090316612
    Abstract: Implementations and examples of wireless communication systems based on multi-frequency antennas each operating at different frequency bands for wireless communications, including multi-frequency antennas based on metamaterial structures.
    Type: Application
    Filed: April 28, 2009
    Publication date: December 24, 2009
    Inventors: Gregory Poilasne, Maha Achour, Ajay Gummalla, Vaneet Pathak, Ryan Robert Bartsch, Angela Mae Dodd
  • RF Power Amplifiers with Linearization
    Publication number: 20090295483
    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: May 27, 2009
    Publication date: December 3, 2009
    Inventors: Raul Alidio, Alexandre Dupuy, Ajay Gummalla, Woo Yong Lee, Maha Achour
  • Power Amplifier Architectures
    Publication number: 20090295473
    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 28, 2009
    Publication date: December 3, 2009
    Inventors: Alexandre Dupuy, Raul Alidio, Ajay Gummalla, Maha Achour, Cheng-Jung Lee, Can Zheng
  • 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
  • Advanced Active Metamaterial Antenna Systems
    Publication number: 20090245146
    Abstract: Techniques, antenna systems and apparatus based on composite right and left handed (CRLH) metamaterial (MTM) structures to couple CRLH MTM circuits to transistors to amplify signals in wireless RF receivers and transmitters.
    Type: Application
    Filed: March 9, 2009
    Publication date: October 1, 2009
    Inventors: Ajay Gummalla, Cheng-Jung Lee, Alexandre Dupuy, Maha Achour
  • Antennas based on metamaterial structures
    Patent number: 7592957
    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: August 24, 2007
    Date of Patent: September 22, 2009
    Assignee: Rayspan Corporation
    Inventors: Maha Achour, Ajay Gummalla, Marin Stoytchev
  • Multi-Metamaterial-Antenna Systems with Directional Couplers
    Publication number: 20090219213
    Abstract: Examples of apparatus and techniques for providing metamaterial (MTM) multi-antenna array systems with directional couplers for various applications.
    Type: Application
    Filed: December 20, 2008
    Publication date: September 3, 2009
    Inventors: Cheng-Jung Lee, Ajay Gummalla, Maha Achour, Vaneet Pathak
  • Filter Design Methods and Filters Based on Metamaterial Structures
    Publication number: 20090160578
    Abstract: 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: November 17, 2008
    Publication date: June 25, 2009
    Inventor: Maha Achour
  • Power Combiners and Dividers Based on Composite Right and Left Handed Metamaterial Structures
    Publication number: 20090160575
    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: December 21, 2007
    Publication date: June 25, 2009
    Inventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
  • Metamaterial Structures with Multilayer Metallization and Via
    Publication number: 20090135087
    Abstract: Techniques and apparatus based on metamaterial structures are provided for antenna and transmission line devices, including multilayer metallization metamaterial structures with one or more conductive vias connecting conductive parts in two different metallization layers.
    Type: Application
    Filed: November 13, 2008
    Publication date: May 28, 2009
    Inventors: Ajay Gummalla, Maha Achour, Norberto Lopez, Shane Thornwall, Nhan Duc Nguyen, Gregory Poilasne
  • Single-Layer Metallization and Via-Less Metamaterial Structures
    Publication number: 20090128446
    Abstract: Techniques and apparatus based on metamaterial structures provided for antenna and transmission line devices, including single-layer metallization and via-less metamaterial structures.
    Type: Application
    Filed: October 13, 2008
    Publication date: May 21, 2009
    Inventors: Ajay Gummalla, Maha Achour, Cheng-Jung Lee, Vaneet Pathak, Gregory Poilasne