Patents by Inventor Craig Mitchelson
Craig Mitchelson 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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Publication number: 20230335895Abstract: The present disclosure is directed to a sub-reflector assembly for a point-to-point antenna. The sub-reflector assembly includes a main body configured to hold an antenna, a sub-reflector supported by a plurality of support members extending axially outwardly from the main body, and an adjustment mechanism coupled to the sub-reflector and at least two of the support members, the adjustment mechanism configured to adjust the position of the sub-reflector relative to the main body to steer an antenna beam from the antenna. Related antenna assemblies are also described herein.Type: ApplicationFiled: April 5, 2023Publication date: October 19, 2023Inventors: Griogair Whyte, David John Walker, Hongliang Guo, Benjamin Cousino, Craig Mitchelson, Matthew Lewry
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Patent number: 11742577Abstract: Microwave antenna systems include a parabolic reflector antenna having a feed bore and a feed assembly. The feed assembly includes a coaxial waveguide structure that extends through the feed bore, a sub-reflector, and a first dielectric block that is positioned between the coaxial waveguide structure and the sub-reflector. The coaxial waveguide structure includes a central waveguide and an outer waveguide that circumferentially surrounds the central waveguide. One of the central waveguide and the outer waveguide extends further from the feed bore towards the sub-reflector than the other of the central waveguide and the outer waveguide.Type: GrantFiled: July 15, 2022Date of Patent: August 29, 2023Assignee: CommScope Technologies LLCInventors: Craig Mitchelson, Ronald J. Brandau, Thomas C. Tulloch, Griogair Whyte
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Patent number: 11588232Abstract: An antenna structure includes a radiator element configured for operation at a first microwave frequency range and at a second microwave frequency range that is higher than the first microwave frequency range, and a reflector including the radiator element attached thereto. The reflector includes an enclosure that houses the radiator element and a radiating aperture. The antenna structure further includes a radome assembly adjacent the radiating aperture. The radome assembly includes a flexible radome having a thickness that is less than a wavelength corresponding to the first or second microwave frequency ranges, and a tensioning member that extends along a perimeter of the flexible radome and maintains tension in a surface of the flexible radome.Type: GrantFiled: October 9, 2019Date of Patent: February 21, 2023Assignee: CommScope Technologies LLCInventors: Thomas C. Tulloch, Griogair Whyte, Donald B. Gardner, Matthew Lewry, Craig Mitchelson, Steven William Bell
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Publication number: 20220352631Abstract: Microwave antenna systems include a parabolic reflector antenna having a feed bore and a feed assembly. The feed assembly includes a coaxial waveguide structure that extends through the feed bore, a sub-reflector, and a first dielectric block that is positioned between the coaxial waveguide structure and the sub-reflector. The coaxial waveguide structure includes a central waveguide and an outer waveguide that circumferentially surrounds the central waveguide. One of the central waveguide and the outer waveguide extends further from the feed bore towards the sub-reflector than the other of the central waveguide and the outer waveguide.Type: ApplicationFiled: July 15, 2022Publication date: November 3, 2022Inventors: Craig MITCHELSON, Ronald J. BRANDAU, Thomas C. TULLOCH, Griogair WHYTE
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Patent number: 11489259Abstract: Microwave antenna systems include a parabolic reflector antenna and a dual-band feed assembly. The dual-band feed assembly includes a coaxial waveguide structure and a sub-reflector. The coaxial waveguide structure includes a central waveguide and an outer waveguide that circumferentially surrounds the central waveguide. The sub-reflector is mounted proximate the distal end of the coaxial waveguide structure.Type: GrantFiled: September 22, 2017Date of Patent: November 1, 2022Assignee: COMMSCOPE TECHNOLOGIES LLCInventors: Craig Mitchelson, Douglas John Cole, Claudio Biancotto, Lawrence Bissett
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Patent number: 11424538Abstract: Microwave antenna systems include a parabolic reflector antenna having a feed bore and a feed assembly. The feed assembly includes a coaxial waveguide structure that extends through the feed bore, a sub-reflector, and a first dielectric block that is positioned between the coaxial waveguide structure and the sub-reflector. The coaxial waveguide structure includes a central waveguide and an outer waveguide that circumferentially surrounds the central waveguide. One of the central waveguide and the outer waveguide extends further from the feed bore towards the sub-reflector than the other of the central waveguide and the outer waveguide.Type: GrantFiled: October 8, 2019Date of Patent: August 23, 2022Assignee: CommScope Technologies LLCInventors: Craig Mitchelson, Ronald J. Brandau, Thomas C. Tulloch, Griogair Whyte
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Publication number: 20210384623Abstract: An antenna structure includes a radiator element configured for operation at a first microwave frequency range and at a second microwave frequency range that is higher than the first microwave frequency range, and a reflector including the radiator element attached thereto. The reflector includes an enclosure that houses the radiator element and a radiating aperture. The antenna structure further includes a radome assembly adjacent the radiating aperture. The radome assembly includes a flexible radome having a thickness that is less than a wavelength corresponding to the first or second microwave frequency ranges, and a tensioning member that extends along a perimeter of the flexible radome and maintains tension in a surface of the flexible radome.Type: ApplicationFiled: October 9, 2019Publication date: December 9, 2021Inventors: Thomas C. Tulloch, Griogair Whyte, Donald B. Gardner, Matthew Lewry, Craig Mitchelson, Steven William Bell
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Publication number: 20210283831Abstract: A method of forming a feed cone for a microwave antenna includes the steps of: providing a digitized design for a feed cone, the feed cone comprising a plurality of geometric features that vary in area along an axial dimension of the feed cone; subdividing the digitized design into a plurality of thin strata stacked in the thickness dimension; forming a thin layer of material corresponding to one of the thin strata; fixing the thin layer of material; and repeating steps (c) and (d) to form a feed cone.Type: ApplicationFiled: September 21, 2017Publication date: September 16, 2021Inventor: Craig Mitchelson
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Patent number: 11108149Abstract: A microwave antenna includes an antenna housing and a radome fabric attached to the housing, which is configured to pass microwave electromagnetic signals therethrough. The radome fabric has an opening formed therein. A vent component is attached to the radome fabric so as to cover the opening in the radome fabric when the radome fabric is viewed from an elevation view in a direction parallel to an axis extending through and perpendicular to the opening in the radome fabric. The vent component is configured to allow air to pass between the atmosphere and the antenna housing.Type: GrantFiled: June 28, 2017Date of Patent: August 31, 2021Assignee: COMMSCOPE TECHNOLOGIES LLCInventors: Steven M. Clark, Brian Lawson, Allan Mitchell Tasker, Craig Mitchelson, Lawrence Bissett, Ronald Joseph Brandau
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Publication number: 20210265740Abstract: Microwave antenna systems include a parabolic reflector antenna having a feed bore and a feed assembly. The feed assembly includes a coaxial waveguide structure that extends through the feed bore, a sub-reflector, and a first dielectric block that is positioned between the coaxial waveguide structure and the sub-reflector. The coaxial waveguide structure includes a central waveguide and an outer waveguide that circumferentially surrounds the central waveguide. One of the central waveguide and the outer waveguide extends further from the feed bore towards the sub-reflector than the other of the central waveguide and the outer waveguide.Type: ApplicationFiled: October 8, 2019Publication date: August 26, 2021Inventors: Craig MITCHELSON, Ronald J. BRANDAU, Thomas C. TULLOCH, Griogair WHYTE
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Publication number: 20200313296Abstract: Microwave antenna systems include a parabolic reflector antenna and a dual-band feed assembly. The dual-band feed assembly includes a coaxial waveguide structure and a sub-reflector. The coaxial waveguide structure includes a central waveguide and an outer waveguide that circumferentially surrounds the central waveguide. The sub-reflector is mounted proximate the distal end of the coaxial waveguide structure.Type: ApplicationFiled: September 22, 2017Publication date: October 1, 2020Inventors: Craig MITCHELSON, Douglas John COLE, Claudio BIANCOTTO, Lawrence BISSETT
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Patent number: 10651551Abstract: An antenna structure includes a radiator element and an enclosure housing the radiator element therein. The enclosure includes a front face that is adjacent a surface of the radiator element and sidewall surfaces that house the radiator element therebetween. The front face of the enclosure has an internal surface that is bounded by the sidewall surfaces and an external surface that is opposite the internal surface. The surface of the radiator element is positioned closer to the external surface than the internal surface of the front face of the enclosure.Type: GrantFiled: November 9, 2017Date of Patent: May 12, 2020Assignee: CommScope Technologies LLCInventors: Claudio Biancotto, Craig Mitchelson, Shuwei Russell, David Walker
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Publication number: 20190165463Abstract: A microwave antenna includes an antenna housing and a radome fabric attached to the housing, which is configured to pass microwave electromagnetic signals therethrough. The radome fabric has an opening formed therein. A vent component is attached to the radome fabric so as to cover the opening in the radome fabric when the radome fabric is viewed from an elevation view in a direction parallel to an axis extending through and perpendicular to the opening in the radome fabric. The vent component is configured to allow air to pass between the atmosphere and the antenna housing.Type: ApplicationFiled: June 28, 2017Publication date: May 30, 2019Inventors: Steven M. Clark, Brian Lawson, Allan Mitchell Tasker, Craig Mitchelson, Lawrence Bissett, Ronald Joseph Brandau
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Patent number: 10116060Abstract: A microwave antenna is operated in a first operating state during an alignment operation for the microwave antenna system where the microwave antenna is configured to have a first beam width. Subsequent to the alignment operation, the microwave antenna is operated in a second operating state where the beam of the microwave antenna is configured to have a second beam width that is narrower than the first beam width.Type: GrantFiled: August 19, 2016Date of Patent: October 30, 2018Assignee: CommScope Technologies LLCInventors: Douglas John Cole, Claudio Biancotto, Craig Mitchelson
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Publication number: 20180159211Abstract: An antenna structure includes a radiator element and an enclosure housing the radiator element therein. The enclosure includes a front face that is adjacent a surface of the radiator element and sidewall surfaces that house the radiator element therebetween. The front face of the enclosure has an internal surface that is bounded by the sidewall surfaces and an external surface that is opposite the internal surface. The surface of the radiator element is positioned closer to the external surface than the internal surface of the front face of the enclosure.Type: ApplicationFiled: November 9, 2017Publication date: June 7, 2018Inventors: Claudio Biancotto, Craig Mitchelson, Shuwei Russell, David Walker
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Publication number: 20170062946Abstract: A microwave antenna is operated in a first operating state during an alignment operation for the microwave antenna system where the microwave antenna is configured to have a first beam width. Subsequent to the alignment operation, the microwave antenna is operated in a second operating state where the beam of the microwave antenna is configured to have a second beam width that is narrower than the first beam width.Type: ApplicationFiled: August 19, 2016Publication date: March 2, 2017Inventors: Douglas John Cole, Claudio Biancotto, Craig Mitchelson
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Patent number: 7755557Abstract: A feed horn with a horn body and a waveguide body, each with a front end and a back end, respectively. The horn body and the waveguide body coupled together, the waveguide body front end to the horn body back end. The waveguide body provided with a waveguide bore between the front end and the back end. At least one slot formed in the waveguide bore parallel to a longitudinal axis of the body bore, the at least one slot extending to the front end. The horn body provided with a horn bore between the front end and the back end. The horn body and the waveguide body formable via injection molding methods such as die casting.Type: GrantFiled: October 31, 2007Date of Patent: July 13, 2010Assignee: Raven Antenna Systems Inc.Inventors: Neil McGonigle, Craig Mitchelson, David Geen, Graham Agnew
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Patent number: 7602347Abstract: A feed having a waveguide with a longitudinal axis. A plurality of corrugations extending from an end of the waveguide. The corrugations coaxial with the longitudinal axis, forming an extension of the waveguide. The corrugations having an end face angle less than 90 degrees with respect to the longitudinal axis to squint the feed beam.Type: GrantFiled: June 9, 2006Date of Patent: October 13, 2009Assignee: Raven Manufacturing Ltd.Inventors: Stephen John Flynn, Neil Wolfenden, Andrew Baird, Craig Mitchelson
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Publication number: 20090109111Abstract: A feed horn with a horn body and a waveguide body, each with a front end and a back end, respectively. The horn body and the waveguide body coupled together, the waveguide body front end to the horn body back end. The waveguide body provided with a waveguide bore between the front end and the back end. At least one slot formed in the waveguide bore parallel to a longitudinal axis of the body bore, the at least one slot extending to the front end. The horn body provided with a horn bore between the front end and the back end. The horn body and the waveguide body formable via injection molding methods such as die casting.Type: ApplicationFiled: October 31, 2007Publication date: April 30, 2009Applicant: ANDREW CORPORATIONInventors: Neil McGonigle, Craig Mitchelson, David Geen, Graham Agnew
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Patent number: D873249Type: GrantFiled: December 6, 2016Date of Patent: January 21, 2020Assignee: CommScope Technologies LLCInventors: Claudio Biancotto, Craig Mitchelson, Shuwei Russell, David Walker