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: 20110193656Abstract: 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: ApplicationFiled: November 19, 2010Publication date: August 11, 2011Applicant: RAYSPAN CORPORATIONInventors: Jean-Luc Erb, Maha Achour
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Publication number: 20110175789Abstract: 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: ApplicationFiled: November 9, 2010Publication date: July 21, 2011Applicant: RAYSPAN CORPORATIONInventors: Cheng Jung Lee, Nhan Duc Nguyen, Ajay Gummalla
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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: 20110109402Abstract: 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: October 1, 2010Publication date: May 12, 2011Applicant: RAYSPAN CORPORATIONInventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour
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Publication number: 20110095964Abstract: 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: ApplicationFiled: October 22, 2009Publication date: April 28, 2011Applicant: RAYSPAN CORPORATIONInventors: Vaneet Pathak, Ajay Gummalla
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Publication number: 20110068873Abstract: 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: ApplicationFiled: September 30, 2010Publication date: March 24, 2011Applicant: RAYSPAN CORPORATIONInventors: Raul Alidio, Alexandre Dupuy, Ajay Gummalla, Woo Yong Lee, Maha Achour
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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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Publication number: 20110039501Abstract: 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: ApplicationFiled: October 28, 2010Publication date: February 17, 2011Applicant: RAYSPAN CORPORATIONInventors: Maha Achour, Ajay Gummalla, Marin Stoytchev
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Publication number: 20110026624Abstract: 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: ApplicationFiled: August 3, 2010Publication date: February 3, 2011Applicant: RAYSPAN CORPORATIONInventors: Ajay Gummalla, Marin Stoytchev, Maha Achour, Gregory Poilasne
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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: 20100283705Abstract: 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: ApplicationFiled: May 21, 2010Publication date: November 11, 2010Applicant: RAYSPAN CORPORATIONInventors: Maha Achour, Ajay Gummalla, Marin Stoytchev, Birkner Franz
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Publication number: 20100283692Abstract: 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: ApplicationFiled: May 21, 2010Publication date: November 11, 2010Applicant: RAYSPAN CORPORATIONInventors: Maha Achour, Ajay Gummalla, Marin Stoytchev, Franz Birkner
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Publication number: 20100231470Abstract: This application relates to slot antenna devices based on Composite Right and Left Handed (CRLH) metamaterial (MTM) structures.Type: ApplicationFiled: March 12, 2010Publication date: September 16, 2010Applicant: RAYSPAN CORPORATIONInventors: Cheng-Jung Lee, Ajay Gummalla, Maha Achour
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Publication number: 20100231464Abstract: 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: ApplicationFiled: March 11, 2010Publication date: September 16, 2010Applicant: RAYSPAN CORPORATIONInventors: Wei Huang, Gregory Poilasne, Vaneet Pathak
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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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Publication number: 20100207703Abstract: Power amplifying systems and modules and components therein are designed based on CRLH structures, providing high efficiency and linearity.Type: ApplicationFiled: February 18, 2010Publication date: August 19, 2010Applicant: RAYSPAN CORPORATIONInventors: Alexandre Dupuy, Ajay Gummalla, Maha Achour