Patents by Inventor Franco De Flaviis
Franco De Flaviis 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).
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Patent number: 7605760Abstract: A multiband antenna system is provided. The system includes a substrate; an antenna which is disposed on a first side and a second side of the substrate, and produces a resonance in a plurality of frequency bands; a plurality of feeders which are disposed on the first side of the substrate; and a filter which is disposed on the first side of the substrate, is coupled to an end of the antenna, and transfers signals of the plurality of frequency bands output from the antenna to respective feeders of the plurality of the feeders.Type: GrantFiled: April 20, 2007Date of Patent: October 20, 2009Assignees: Samsung Electronics Co., Ltd., Regents of The University of CaliforniaInventors: Young-eil Kim, Chang-won Jung, Seunghwan Yoon, Franco De Flaviis, Hyoung-woon Park
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Patent number: 7595732Abstract: A power generating circuit includes a rectifying module and a tuning module. The rectifying module is operably coupled to convert a radio frequency (RF) signal into a voltage. The tuning module is operably coupled to tune the rectifying module in accordance with the RF signal.Type: GrantFiled: March 31, 2006Date of Patent: September 29, 2009Assignee: Broadcom CorporationInventors: Amin Shameli, Ahmadreza (Reza) Rofougaran, Franco De Flaviis
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Patent number: 7557772Abstract: An antenna includes a substantially planer substrate and a helical winding. The substantially planer substrate includes a first surface and a second surface. The helical winding includes a first pattern, a second pattern, and a plurality of interconnections. The first pattern is affixed to the first surface and the second pattern is affixed to the second surface. Connection nodes of the first pattern are coupled to associated connection nodes of the second pattern by the plurality of interconnections.Type: GrantFiled: March 21, 2006Date of Patent: July 7, 2009Assignee: Broadcom CorporationInventors: Franco De Flaviis, Seunghwan Yoon
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Patent number: 7522122Abstract: A planer antenna includes first and second planer helical antennas and a ground pattern. The first planer helical antenna has a first axial orientation and includes first and second helical conductive patterns on first and second surfaces of a supporting substrate. The second planer helical antenna has a second axial orientation and includes the first and second helical conductive patterns on the first and second surfaces of the supporting substrate. The ground pattern is on the second surface of the supporting substrate and provides a ground connection for the first and second planer helical antennas. The ground pattern is approximately centered at an intersection of the first and second axial orientations and the first and second planer helical antennas are off-center of the intersection of the first and second axial orientations.Type: GrantFiled: June 12, 2006Date of Patent: April 21, 2009Assignee: Broadcom CorporationInventors: Seunghwan Yoon, Franco De Flaviis, Ahmadreza (Reza) Rofougaran
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Publication number: 20090073054Abstract: A planer antenna structure includes a first planer antenna and a second planer antenna. The first planer antenna has a first axial orientation and a conductive antenna pattern on a first surface of a supporting substrate. The second planer antenna has a second axial orientation and the conductive antenna pattern on the first surface of the supporting substrate.Type: ApplicationFiled: November 26, 2008Publication date: March 19, 2009Applicant: BROADCOM CORPORATIONInventors: SEUNGHWAN YOON, FRANCO DE FLAVIIS, AHMADREZA (REZA) ROFOUGARAN
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Publication number: 20080258977Abstract: A multiband antenna system is provided. The system includes a substrate; an antenna which is disposed on a first side and a second side of the substrate, and produces a resonance in a plurality of frequency bands; a plurality of feeders which are disposed on the first side of the substrate; and a filter which is disposed on the first side of the substrate, is coupled to an end of the antenna, and transfers signals of the plurality of frequency bands output from the antenna to respective feeders of the plurality of the feeders.Type: ApplicationFiled: April 20, 2007Publication date: October 23, 2008Applicants: SAMSUNG ELECTRONICS CO., LTD., UNIVERSITY OF CALIFORNIA, IRVINEInventors: Young-eil Kim, Chang-won Jung, Seunghwan Yoon, Franco De Flaviis, Hyoung-woon Park
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Patent number: 7420437Abstract: A balancing/unbalancing (balun) structure for operating at frequency f1 includes a microstrip printed circuit board (PCB). A balun on the PCB includes two input ports are coupled to a differential signal. An isolated port is connected to ground through a matched resistance. An output port is coupled to a single-ended signal corresponding to the differential signal. A plurality of traces on the PCB connect the two input ports, the load connection port and a tap point to the output port. A f2 rejection filter on the PCB is wrapped around the balun and includes a first folded element with a transmission length of ?2/4 and connected to the output port. A second folded element has a transmission length of ?2/4 and connected to the tap point. A third folded element connects the tap point to the output port and has a transmission length of ?2/4.Type: GrantFiled: March 30, 2007Date of Patent: September 2, 2008Assignee: Broadcom CorporationInventor: Franco De Flaviis
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Publication number: 20070296537Abstract: An impedance transformer includes a first winding and a second winding. The first winding includes a first plurality of winding components, wherein each of the first plurality of winding components is on a corresponding layer of a first set of layers of a supporting substrate. The second winding includes a second plurality of winding components, wherein each of the second plurality of winding components is on a corresponding layer of a second set of layers of the supporting substrate and the first and second sets of layers are interleaved. The first winding has a first impedance within a desired frequency range and the second winding has a second impedance within the desired frequency range, where the first and second impedances are based on at least one of spacing, trace width, and trace length of the first and second plurality of winding components.Type: ApplicationFiled: June 22, 2006Publication date: December 27, 2007Applicant: Broadcom Corporation, a California CorporationInventors: Seunghwan Yoon, Jesus Castaneda, Franco De Flaviis
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Publication number: 20070279287Abstract: An antenna structure includes first and second antennas. The first antenna has a first geometry corresponding to a first frequency. The second antenna has a second geometry corresponding to a second frequency. The second antenna is proximal to the first antenna and utilizes electrical-magnetic properties of the first antenna to transceive signals at the second frequency.Type: ApplicationFiled: May 30, 2006Publication date: December 6, 2007Applicant: Broadcom Corporation, a California CorporationInventors: Jesus Alfonso Castaneda, Franco De Flaviis, Ahmadreza(Reza) Rofougaran
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Publication number: 20070236851Abstract: A power generating circuit includes a rectifying module and a tuning module. The rectifying module is operably coupled to convert a radio frequency (RF) signal into a voltage. The tuning module is operably coupled to tune the rectifying module in accordance with the RF signal.Type: ApplicationFiled: March 31, 2006Publication date: October 11, 2007Applicant: Broadcom Corporation, a California CorporationInventors: Amin Shameli, Ahmadreza (Reza) Rofougaran, Franco De Flaviis
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Publication number: 20070225033Abstract: An RF transceiver front-end includes receiver and transmitter front-ends. The receiver front-end includes 1st and 2nd antennas, a ninety degree phase shift module and an LNA module. The 1st and 2nd antennas receive inbound RF signals and provide a first directional circular polarization. The ninety degree phase shift module phase shifts the RF signals received by the 2nd antenna. The LNA module amplifies the RF signals received by the 1st antenna and the shifted RF signals. The transmitter front-end includes a PA module and 3rd and 4th antennas, which provide a second directional circular polarization. The PA module amplifies outbound RF signals to produce amplified outbound RF signals and amplified orthogonal outbound RF signals. The 3rd antenna transmits the amplified outbound RF signals and the 4th antenna transmits the amplified orthogonal outbound RF signals.Type: ApplicationFiled: May 30, 2006Publication date: September 27, 2007Applicant: Broadcom Corporation, a California CorporationInventors: Seunghwan Yoon, Franco De Flaviis, Ahmadreza (Reza) Rofougaran
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Publication number: 20070222700Abstract: An antenna includes a substantially planer substrate and a helical winding. The substantially planer substrate includes a first surface and a second surface. The helical winding includes a first pattern, a second pattern, and a plurality of interconnections. The first pattern is affixed to the first surface and the second pattern is affixed to the second surface. Connection nodes of the first pattern are coupled to associated connection nodes of the second pattern by the plurality of interconnections.Type: ApplicationFiled: March 21, 2006Publication date: September 27, 2007Applicant: Broadcom Corporation, a California CorporationInventors: Franco De Flaviis, Seunghwan Yoon
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Publication number: 20070222701Abstract: A planer antenna includes first and second planer helical antennas and a ground pattern. The first planer helical antenna has a first axial orientation and includes first and second helical conductive patterns on first and second surfaces of a supporting substrate. The second planer helical antenna has a second axial orientation and includes the first and second helical conductive patterns on the first and second surfaces of the supporting substrate. The ground pattern is on the second surface of the supporting substrate and provides a ground connection for the first and second planer helical antennas. The ground pattern is approximately centered at an intersection of the first and second axial orientations and the first and second planer helical antennas are off-center of the intersection of the first and second axial orientations.Type: ApplicationFiled: June 12, 2006Publication date: September 27, 2007Applicant: Broadcom Corporation, a California CorporationInventors: Seunghwan Yoon, Franco De Flaviis, Ahmadreza (Reza) Rofougaran
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Publication number: 20070170999Abstract: A balancing/unbalancing (balun) structure for operating at frequency f1 includes a microstrip printed circuit board (PCB). A balun on the PCB includes two input ports are coupled to a differential signal. An isolated port is connected to ground through a matched resistance. An output port is coupled to a single-ended signal corresponding to the differential signal. A plurality of traces on the PCB connect the two input ports, the load connection port and a tap point to the output port. A f2 rejection filter on the PCB is wrapped around the balun and includes a first folded element with a transmission length of ?2/4 and connected to the output port. A second folded element has a transmission length of ?2/4 and connected to the tap point. A third folded element connects the tap point to the output port and has a transmission length of ?2/4.Type: ApplicationFiled: March 30, 2007Publication date: July 26, 2007Applicant: Broadcom CorporationInventor: Franco De Flaviis
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Patent number: 7202757Abstract: A balancing/unbalancing (balun) structure includes two input ports are coupled to a differential signal. An isolated port is connected to ground through a matched resistance. An output port is coupled to a single-ended signal corresponding to the differential signal. A plurality of traces connect the two input ports, the load connection port and a tap point to the output port. A f2 rejection filter is wrapped around the balun and includes a first folded element with a transmission length of ?2/4 and connected to the output port. A second folded element has a transmission length of ?2/4 and connected to the tap point. A third folded element connects the tap point to the output port and has a transmission length of ?2/4.Type: GrantFiled: May 27, 2005Date of Patent: April 10, 2007Assignee: Broadcom CorporationInventor: Franco De Flaviis
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Publication number: 20060238951Abstract: Systems and methods are provided that facilitate the formation of micro-mechanical structures and related systems on a laminated substrate. More particularly, a micro-mechanical device and a three-dimensional multiple frequency antenna are provided for in which the micro-mechanical device and antenna, as well as additional components, can be fabricated together concurrently on the same laminated substrate. The fabrication process includes a low temperature disposition process allowing for deposition of an insulator material at a temperature below the maximum operating temperature of the laminated substrate, as well as a planarization process allowing for the molding and planarizing of a polymer layer to be used as a form for a micro-mechanical device.Type: ApplicationFiled: July 3, 2006Publication date: October 26, 2006Inventors: Bedri Cetiner, Mark Bachman, Guann-Pyng Li, Jiangyuan Qian, Hung-Pin Chang, Franco De Flaviis
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Patent number: 7084724Abstract: Systems and methods are provided that facilitate the formation of micro-mechanical structures and related systems on a laminated substrate. More particularly, a micro-mechanical device and a three-dimensional multiple frequency antenna are provided for in which the micro-mechanical device and antenna, as well as additional components, can be fabricated together concurrently on the same laminated substrate. The fabrication process includes a low temperature deposition process allowing for deposition of an insulator material at a temperature below the maximum operating temperature of the laminated substrate, as well as a planarization process allowing for the molding and planarizing of a polymer layer to be used as a form for a micro-mechanical device.Type: GrantFiled: December 31, 2003Date of Patent: August 1, 2006Assignee: The Regents of the University of CaliforniaInventors: Bedri A. Cetiner, Mark Bachman, Guann-Pyng Li, Jiangyuan Qian, Hung-Pin Chang, Franco De Flaviis
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Publication number: 20050219008Abstract: A balancing/unbalancing (balun) structure includes two input ports are coupled to a differential signal. An isolated port is connected to ground through a matched resistance. An output port is coupled to a single-ended signal corresponding to the differential signal. A plurality of traces connect the two input ports, the load connection port and a tap point to the output port. A f2 rejection filter is wrapped around the balun and includes a first folded element with a transmission length of ?2/4 and connected to the output port. A second folded element has a transmission length of ?2/4 and connected to the tap point. A third folded element connects the tap point to the output port and has a transmission length of ?2/4.Type: ApplicationFiled: May 27, 2005Publication date: October 6, 2005Applicant: Broadcom CorporationInventor: Franco De Flaviis
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Patent number: 6947010Abstract: A system includes a support device and an elongated spiral antenna coupled to the support device. The elongated spiral antenna has a contracted portion and an expanded portion. The expanded portion provides beam steering and directivity. The system also includes a feed line coupled to the elongated spiral antenna. A method for forming the elongated spiral antenna uses a predetermined formula to form arms of the elongated spiral antenna. The arms can be formed by printing the arms on a printed circuit board.Type: GrantFiled: December 3, 2004Date of Patent: September 20, 2005Assignee: Broadcom CorporationInventors: Nicolaos G. Alexopoulos, Franco De Flaviis, Jesus Alfonso Castaneda
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Patent number: 6900706Abstract: A balancing/unbalancing (balun) structure for operating at frequency f1 includes a microstrip printed circuit board (PCB). A balun on the PCB includes two input ports are coupled to a differential signal. An isolated port is connected to ground through a matched resistance. An output port is coupled to a single-ended signal corresponding to the differential signal. A plurality of traces on the PCB connect the two input ports, the load connection port and a tap point to the output port. A f2 rejection filter on the PCB is wrapped around the balun and includes a first folded element with a transmission length of ?2/4 and connected to the output port. A second folded element has a transmission length of ?2/4 and connected to the tap point. A third folded element connects the tap point to the output port and has a transmission length of ?2/4.Type: GrantFiled: November 12, 2003Date of Patent: May 31, 2005Assignee: Broadcom CorporationInventor: Franco De Flaviis