Patents Assigned to Rayspan Corporation
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Patent number: 8237519Abstract: Filter design techniques and filters based on metamaterial structures including an extended composite left and right handed (E-CRLH) metamaterial unit cell.Type: GrantFiled: November 17, 2008Date of Patent: August 7, 2012Assignee: Rayspan CorporationInventor: Maha Achour
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Publication number: 20110156963Abstract: 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: ApplicationFiled: December 30, 2009Publication date: June 30, 2011Applicant: Rayspan CorporationInventors: Sunil Rajgopal, Cheng-Jung Lee, Ajay Gummalla
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Publication number: 20110050364Abstract: 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: ApplicationFiled: August 25, 2009Publication date: March 3, 2011Applicant: Rayspan CorporationInventor: Maha Achour
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Patent number: 7855696Abstract: 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: GrantFiled: March 17, 2008Date of Patent: December 21, 2010Assignee: Rayspan CorporationInventors: Ajay Gummalla, Marin Stoytchev, Maha Achour, Gregory Poilasne
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Patent number: 7847739Abstract: 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: GrantFiled: September 17, 2009Date of Patent: December 7, 2010Assignee: Rayspan CorporationInventors: Maha Achour, Ajay Gummalla, Marin Stoytchev
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Patent number: 7839216Abstract: 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: GrantFiled: May 27, 2009Date of Patent: November 23, 2010Assignee: Rayspan CorporationInventors: Raul Alidio, Alexandre Dupuy, Ajay Gummalla, Woo Yong Lee, Maha Achour
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Patent number: 7839236Abstract: 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: GrantFiled: December 21, 2007Date of Patent: November 23, 2010Assignee: Rayspan CorporationInventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
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Publication number: 20100225554Abstract: 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: ApplicationFiled: March 3, 2010Publication date: September 9, 2010Applicant: Rayspan CorporationInventors: Wei Huang, Vladimir Penev, Vaneet Pathak, Gregory Poilasne
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Patent number: 7764232Abstract: 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: GrantFiled: April 27, 2007Date of Patent: July 27, 2010Assignee: Rayspan CorporationInventors: Maha Achour, Ajay Gummalla, Marin Stoytchev, Franz Birkner
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Publication number: 20100176880Abstract: 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: ApplicationFiled: May 28, 2009Publication date: July 15, 2010Applicant: Rayspan CorporationInventors: Alexandre Dupuy, Raul Alidio, Ajay Gummalla, Maha Achour, Cheng-Jung Lee, Can Zheng
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Publication number: 20100117908Abstract: Examples of apparatus and techniques for providing metamaterial (MTM) multi-antenna array systems with directional couplers for various applications.Type: ApplicationFiled: December 20, 2008Publication date: May 13, 2010Applicant: Rayspan CorporationInventors: Cheng-Jung Lee, Ajay Gummalla, Maha Achour, Vaneet Pathak
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Publication number: 20100110943Abstract: 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: ApplicationFiled: March 9, 2009Publication date: May 6, 2010Applicant: Rayspan CorporationInventors: Ajay Gummalla, Cheng-Jung Lee, Alexandre Dupuy, Maha Achour
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Publication number: 20100109805Abstract: Filter design techniques and filters based on metamaterial structures including an extended composite left and right handed (E-CRLH) metamaterial unit cell.Type: ApplicationFiled: November 17, 2008Publication date: May 6, 2010Applicant: Rayspan CorporationInventor: Maha Achour
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Publication number: 20100109803Abstract: 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: ApplicationFiled: December 21, 2007Publication date: May 6, 2010Applicant: Rayspan CorporationInventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
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Publication number: 20100109971Abstract: 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: ApplicationFiled: November 13, 2008Publication date: May 6, 2010Applicant: Rayspan CorporationInventors: Ajay Gummalla, Maha Achour, Norberto Lopez, Shane Thornwall, Nhan Nguyen, Gregory Poilasne
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Publication number: 20100109972Abstract: Designs and techniques of Composite Right-Left Handed (CRLH) Metamaterial (MTM) antenna devices, including a CRLH MTM devices that include MTM cells formed on a substrate and a conductive launch stub formed on the substrate to be adjacent to each of the MTM cells and electromagnetically coupled to each of the MTM cells.Type: ApplicationFiled: March 20, 2009Publication date: May 6, 2010Applicant: Rayspan CorporationInventors: Nan Xu, Norberto Lopez, Vaneet Pathak, Ajay Gummalla
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Patent number: 7592957Abstract: 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: GrantFiled: August 24, 2007Date of Patent: September 22, 2009Assignee: Rayspan CorporationInventors: Maha Achour, Ajay Gummalla, Marin Stoytchev