Patents Assigned to Rayspan Corporation
  • Filter design methods and filters based on metamaterial structures
    Patent number: 8237519
    Abstract: Filter design techniques and filters based on metamaterial structures including an extended composite left and right handed (E-CRLH) metamaterial unit cell.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: August 7, 2012
    Assignee: Rayspan Corporation
    Inventor: Maha Achour
  • ELECTRO-ACOUSTIC FILTER
    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
  • RF MODULE AND ANTENNA SYSTEMS
    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
  • ANTENNA DEVICES HAVING FREQUENCY-DEPENDENT CONNECTION TO ELECTRICAL GROUND
    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
  • POWER COMBINERS AND DIVIDERS BASED ON COMPOSITE RIGHT AND LEFT HANDED METAMATERIAL STURCTURES
    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
  • Metamaterial Antenna with Mechanical Connection
    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
  • RF Power Amplifiers with Linearization
    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
  • PRINTED MULTILAYER FILTER METHODS AND DESIGNS USING EXTENDED CRLH (E-CRLH)
    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
  • Antenna Structures
    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
  • METAMATERIAL ANTENNA ARRAY WITH RADIATION PATTERN SHAPING AND BEAM SWITCHING
    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
  • Metamaterial antenna arrays with radiation pattern shaping and beam switching
    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
  • Antennas based on metamaterial structures
    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
  • RF power amplifiers with linearization
    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
  • Power combiners and dividers based on composite right and left handed metamaterial structures
    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
  • ANTENNAS, DEVICES AND SYSTEMS BASED ON METAMATERIAL STRUCTURES
    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
  • ANTENNAS, DEVICES AND SYSTEMS BASED ON METAMATERIAL STRUCTURES
    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
  • HIGH GAIN METAMATERIAL ANTENNA DEVICE
    Publication number: 20100231464
    Abstract: An antenna is presented having a flared structure wherein charge is induced from one portion of the structure to another. The flared structure may be a V-shaped or other shaped element. The antenna includes at least one parasitic element to increase the gain of the antenna and extend the radiation pattern generated by the antenna in a given direction.
    Type: Application
    Filed: March 11, 2010
    Publication date: September 16, 2010
    Applicant: RAYSPAN CORPORATION
    Inventors: Wei Huang, Gregory Poilasne, Vaneet Pathak
  • MULTIBAND COMPOSITE RIGHT AND LEFT HANDED (CRLH) SLOT ANTENNA
    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
  • Balanced Metamaterial Antenna Device
    Publication number: 20100225554
    Abstract: This document describes designs and techniques for directly feeding an unbalanced transmission line with a balanced antenna using Composite Right and Left Handed (CRLH) and balun structures.
    Type: Application
    Filed: March 3, 2010
    Publication date: September 9, 2010
    Applicant: Rayspan Corporation
    Inventors: Wei Huang, Vladimir Penev, Vaneet Pathak, Gregory Poilasne
  • METAMATERIAL POWER AMPLIFIER SYSTEMS
    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