Patents by Inventor Rob Zienkewicz
Rob Zienkewicz 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: 8957722Abstract: A double balanced image reject mixer (IRM) can be configured to comprise: a common radio frequency (RF) port; four mixer devices, each comprising an intermediate frequency (IF) port, an RF port and an local oscillator (LO) port; and a four-way, in-phase splitter/combiner. The four-way, in-phase splitter/combiner can be connected between the RF common port and the RF port of each of the four mixer devices. A method of performing spurious suppression and image reject mixing in a double balanced IRM, can comprise: directly in-phase combining radio frequency (RF) output signals of four mixer devices located in the double balanced IRM; and phase pairing local oscillator (LO) signals and intermediate frequency (IF) signals such that the combination of the phases of the respective IF and LO signals can result in substantially equal phase RF signals at the RF ports of all four mixer devices.Type: GrantFiled: September 30, 2013Date of Patent: February 17, 2015Assignee: ViaSat, Inc.Inventors: Rob Zienkewicz, Kenneth Buer
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Publication number: 20140197987Abstract: In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are independently adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals of various polarizations are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements, with the transmitted beams having various polarizations. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously.Type: ApplicationFiled: March 17, 2014Publication date: July 17, 2014Inventors: David W. Corman, Rob Zienkewicz, David Saunders
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Publication number: 20140152397Abstract: In general, in accordance with an exemplary aspect of the present invention, an electrical system configured to use power combining of microwave signals, such as those from monolithic microwave integrated circuits or MMICs is provided. In one exemplary embodiment, the system of the present invention further comprises a low loss interface that the circuits are directly connected to. In another exemplary embodiment, the circuits are connected to a pin which is connected to the low loss interface. In yet another exemplary embodiment of the present invention, a multi-layer power amplifier is provided that comprises two or more chassis and circuits attached to impedance matching interfaces according to the present invention. This multi-layered power amplifier is configured to amplify an energy signal and have a significantly reduced volume compared to existing power combiners.Type: ApplicationFiled: November 26, 2013Publication date: June 5, 2014Applicant: ViaSat, Inc.Inventors: Noel A. Lopez, Charles E. Woods, Rob Zienkewicz, Jon Filreis
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Publication number: 20140104106Abstract: In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously. Furthermore, the antenna polarization may be static or dynamically controlled at the subarray or radiating element level.Type: ApplicationFiled: December 17, 2013Publication date: April 17, 2014Applicant: VIASAT, INC.Inventors: David W. Corman, Rob Zienkewicz, David Saunders
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Patent number: 8693970Abstract: In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are independently adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals of various polarizations are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements, with the transmitted beams having various polarizations. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously.Type: GrantFiled: December 3, 2012Date of Patent: April 8, 2014Assignee: ViaSat, Inc.Inventors: David W. Corman, Rob Zienkewicz, David Saunders
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Publication number: 20140091849Abstract: A double balanced image reject mixer (IRM) can be configured to comprise: a common radio frequency (RF) port; four mixer devices, each comprising an intermediate frequency (IF) port, an RF port and an local oscillator (LO) port; and a four-way, in-phase splitter/combiner. The four-way, in-phase splitter/combiner can be connected between the RF common port and the RF port of each of the four mixer devices. A method of performing spurious suppression and image reject mixing in a double balanced IRM, can comprise: directly in-phase combining radio frequency (RF) output signals of four mixer devices located in the double balanced IRM; and phase pairing local oscillator (LO) signals and intermediate frequency (IF) signals such that the combination of the phases of the respective IF and LO signals can result in substantially equal phase RF signals at the RF ports of all four mixer devices.Type: ApplicationFiled: September 30, 2013Publication date: April 3, 2014Applicant: ViaSat, Inc.Inventors: Rob Zienkewicz, Kenneth Buer
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Publication number: 20140077903Abstract: In an example embodiment, an electromagnetic interface can comprise: a first component comprising a first waveguide channel, a first interface surface, and a first force transfer feature; a second component comprising a second waveguide channel, a second interface surface, and a second force transfer feature; and a fastener that can be configured to force the first force transfer feature in sliding engagement with the second force transfer feature. The first and second force transfer features can be configured to interoperate to create an indirect force holding the first interface surface in contact with the second interface surface and holding the first waveguide channel in alignment with the second waveguide channel.Type: ApplicationFiled: March 13, 2013Publication date: March 20, 2014Applicant: VIASAT, INC.Inventors: Rob Zienkewicz, Mike Potemra
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Patent number: 8639204Abstract: In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously. Furthermore, the antenna polarization may be static or dynamically controlled at the subarray or radiating element level.Type: GrantFiled: March 6, 2012Date of Patent: January 28, 2014Assignee: ViaSat, Inc.Inventors: David W. Corman, Rob Zienkewicz, David R Saunders
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Patent number: 8598966Abstract: In general, in accordance with an exemplary aspect of the present invention, an electrical system configured to use power combining of microwave signals, such as those from monolithic microwave integrated circuits or MMICs is provided. In one exemplary embodiment, the system of the present invention further comprises a low loss interface that the circuits are directly connected to. In another exemplary embodiment, the circuits are connected to a pin which is connected to the low loss interface. In yet another exemplary embodiment of the present invention, a multi-layer power amplifier is provided that comprises two or more chassis and circuits attached to impedance matching interfaces according to the present invention. This multi-layered power amplifier is configured to amplify an energy signal and have a significantly reduced volume compared to existing power combiners.Type: GrantFiled: May 15, 2012Date of Patent: December 3, 2013Assignee: ViaSat, Inc.Inventors: Noel Lopez, Charles Woods, Rob Zienkewicz, Jon Filreis
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Publication number: 20120229219Abstract: In general, in accordance with an exemplary aspect of the present invention, an electrical system configured to use power combining of microwave signals, such as those from monolithic microwave integrated circuits or MMICs is provided. In one exemplary embodiment, the system of the present invention further comprises a low loss interface that the circuits are directly connected to. In another exemplary embodiment, the circuits are connected to a pin which is connected to the low loss interface. In yet another exemplary embodiment of the present invention, a multi-layer power amplifier is provided that comprises two or more chassis and circuits attached to impedance matching interfaces according to the present invention. This multi-layered power amplifier is configured to amplify an energy signal and have a significantly reduced volume compared to existing power combiners.Type: ApplicationFiled: May 15, 2012Publication date: September 13, 2012Applicant: VIASAT, INC.Inventors: Noel Lopez, Charles Woods, Rob Zienkewicz, Jon Filreis
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Publication number: 20120184229Abstract: In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously. Furthermore, the antenna polarization may be static or dynamically controlled at the subarray or radiating element level.Type: ApplicationFiled: March 6, 2012Publication date: July 19, 2012Applicant: VIASAT, INC.Inventors: David W. Corman, Rob Zienkewicz, David R. Saunders
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Patent number: 8212631Abstract: In general, in accordance with an exemplary aspect of the present invention, an electrical system configured to use power combining of microwave signals, such as those from monolithic microwave integrated circuits or MMICs is provided. In one exemplary embodiment, the system of the present invention further comprises a low loss interface that the circuits are directly connected to. In another exemplary embodiment, the circuits are connected to a pin which is connected to the low loss interface. In yet another exemplary embodiment of the present invention, a multi-layer power amplifier is provided that comprises two or more chassis and circuits attached to impedance matching interfaces according to the present invention. This multi-layered power amplifier is configured to amplify an energy signal and have a significantly reduced volume compared to existing power combiners.Type: GrantFiled: March 12, 2009Date of Patent: July 3, 2012Assignee: ViaSat, Inc.Inventors: Noel Lopez, Charles Woods, Rob Zienkewicz, Jon Filreis
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Patent number: 8160530Abstract: In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously. Furthermore, the antenna polarization may be static or dynamically controlled at the subarray or radiating element level.Type: GrantFiled: April 13, 2010Date of Patent: April 17, 2012Assignee: ViaSat, Inc.Inventors: David W. Corman, Rob Zienkewicz, David R Saunders
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Patent number: 7855612Abstract: In general, in accordance with an exemplary aspect of the present invention, a low-loss interface for connecting an integrated circuit such as a monolithic microwave integrated circuit to an energy transmission device such as a waveguide is disclosed. In one exemplary embodiment, the interface comprises a coaxial structure such as a coaxial cable that directly connects the monolithic microwave integrated circuit to the waveguide to transmit energy such as microwave energy with minimal loss.Type: GrantFiled: October 18, 2007Date of Patent: December 21, 2010Assignee: Viasat, Inc.Inventors: Rob Zienkewicz, Dean Cook, Charles Woods
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Publication number: 20100261440Abstract: In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously. Furthermore, the antenna polarization may be static or dynamically controlled at the subarray or radiating element level.Type: ApplicationFiled: April 13, 2010Publication date: October 14, 2010Applicant: VIASAT, INC.Inventors: David W. Corman, Rob Zienkewicz, David R. Saunders
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Patent number: 7625131Abstract: in general, in accordance with an exemplary aspect of the present invention, a low-loss interface for connecting an integrated circuit such as a monolithic microwave integrated circuit to an energy transmission device such as a waveguide is disclosed. In one exemplary embodiment, the interface comprises a pin seated within an assembly that forms a hermetic sealed, coaxial structure to prevent signal loss at increasing frequencies.Type: GrantFiled: May 2, 2007Date of Patent: December 1, 2009Assignee: Viasat, Inc.Inventors: Rob Zienkewicz, Dave Harper, Kenneth V Buer, John DeCamp
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Publication number: 20090231055Abstract: In general, in accordance with an exemplary aspect of the present invention, an electrical system configured to use power combining of microwave signals, such as those from monolithic microwave integrated circuits or MMICs is provided. In one exemplary embodiment, the system of the present invention further comprises a low loss interface that the circuits are directly connected to. In another exemplary embodiment, the circuits are connected to a pin which is connected to the low loss interface. In yet another exemplary embodiment of the present invention, a multi-layer power amplifier is provided that comprises two or more chassis and circuits attached to impedance matching interfaces according to the present invention. This multi-layered power amplifier is configured to amplify an energy signal and have a significantly reduced volume compared to existing power combiners.Type: ApplicationFiled: March 12, 2009Publication date: September 17, 2009Applicant: VIASAT, INC.Inventors: Noel Lopez, Charles Woods, Rob Zienkewicz, Jon Filreis
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Publication number: 20090102575Abstract: In general, in accordance with an exemplary aspect of the present invention, a low-loss interface for connecting an integrated circuit such as a monolithic microwave integrated circuit to an energy transmission device such as a waveguide is disclosed. In one exemplary embodiment, the interface comprises a coaxial structure such as a coaxial cable that directly connects the monolithic microwave integrated circuit to the waveguide to transmit energy such as microwave energy with minimal loss.Type: ApplicationFiled: October 18, 2007Publication date: April 23, 2009Applicant: VIASAT, INC.Inventors: Rob Zienkewicz, Dean Cook, Charles Woods
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Publication number: 20080273843Abstract: in general, in accordance with an exemplary aspect of the present invention, a low-loss interface for connecting an integrated circuit such as a monolithic microwave integrated circuit to an energy transmission device such as a waveguide is disclosed. In one exemplary embodiment, the interface comprises a pin seated within an assembly that forms a hermetic sealed, coaxial structure to prevent signal loss at increasing frequencies.Type: ApplicationFiled: May 2, 2007Publication date: November 6, 2008Applicant: VIASAT, INC.Inventors: Rob Zienkewicz, Dave Harper, Ken Buer, John DeCamp