Patents by Inventor Junaid Syed
Junaid Syed 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: 10992041Abstract: The present invention discloses a dual-frequency feed-source module and a dual-frequency microwave antenna, wherein the dual-frequency feed-source module mainly comprises two coaxially arranged waveguides, the two waveguides respectively provide microwave energy of two different frequency bands to radiating portions for feeding, so that the antenna can be operated in different frequency bands at the same time. The combination of the two coaxial waveguides, a reflector and other structures can form different microwave antennas such as a feedforward dual-band microwave antenna and a feedback Cassegrain dual-band microwave antenna. The invention feeds microwave energy through the two waveguides, so that the antenna can be operated in two frequency bands at the same time, thus greatly expanding an application range of the microwave antenna.Type: GrantFiled: June 12, 2018Date of Patent: April 27, 2021Assignee: ROSENBERGER TECHNOLOGIES CO., LTD.Inventors: Junaid Syed, Stephen Simms
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Publication number: 20200212573Abstract: The present invention discloses a dual-frequency feed-source module and a dual-frequency microwave antenna, wherein the dual-frequency feed-source module mainly comprises two coaxially arranged waveguides, the two waveguides respectively provide microwave energy of two different frequency bands to radiating portions for feeding, so that the antenna can be operated in different frequency bands at the same time. The combination of the two coaxial waveguides, a reflector and other structures can form different microwave antennas such as a feedforward dual-band microwave antenna and a feedback Cassegrain dual-band microwave antenna. The invention feeds microwave energy through the two waveguides, so that the antenna can be operated in two frequency bands at the same time, thus greatly expanding an application range of the microwave antenna.Type: ApplicationFiled: June 12, 2018Publication date: July 2, 2020Applicant: Rosenberger Technologies Co., Ltd.Inventors: Junaid SYED, Stephen SIMMS
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Publication number: 20200044334Abstract: The invention discloses a microwave antenna control system used for automatically adjusting boresight alignment of a microwave antenna. The microwave antenna control system comprises a first driving device, a second driving device, an inclination angle sensor and a control unit, wherein the first driving device, the second driving device and the inclination angle sensor are connected with the microwave antenna and are also connected with the control unit, The inclination angle sensor monitors angular alignment information of the microwave antenna, and the control unit controls the first driving device and/or the second driving device to accurately and automatically adjust the boresight alignment of the microwave antenna according to the angle information.Type: ApplicationFiled: September 27, 2019Publication date: February 6, 2020Applicant: Rosenberger Technologies Co., Ltd.Inventors: Junaid SYED, Daobing PENG
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Patent number: 9019164Abstract: A front feed reflector antenna with a dish reflector has a wave guide is coupled to a proximal end of the dish reflector, projecting into the dish reflector along a longitudinal axis. A dielectric block may be coupled to a distal end of the waveguide and a sub-reflector coupled to a distal end of the dielectric block. A shield is coupled to the periphery of the dish reflector. A subtended angle between the longitudinal axis and a line between the focal point and a distal periphery of the shield is 50 degrees or less.Type: GrantFiled: July 22, 2013Date of Patent: April 28, 2015Assignee: Andrew LLCInventors: Ronald J Brandau, Junaid Syed
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Patent number: 8760361Abstract: A polarization adjustment assembly for a reflector antenna is provided with a radio bracket with a mounting flange. The mounting flange is coupled to a hub provided with a stop portion. Fasteners couple the radio bracket to the hub via slots in the mounting flange, rotatable with respect to the hub within the extents of the slots. An adjustment bolt passes through a boss coupled to the mounting flange. The adjustment bolt abuts the stop portion, whereby longitudinal displacement of the adjustment bolt with respect to the boss rotates the radio bracket with respect to the hub. Alternatively, the positions of the boss and stop portion on the mounting flange and hub may be exchanged.Type: GrantFiled: September 20, 2010Date of Patent: June 24, 2014Assignee: Andrew LLCInventors: Matthew Lewry, Junaid Syed, Keith Tappin, Chris Hills
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Patent number: 8698683Abstract: A dual polarized reflector antenna assembly, provided with a reflector dish coupled to a feed hub with a feed port there through; a transceiver support bracket coupled to a backside of the feed hub; a circular to square waveguide transition coupled to the feed port; a square waveguide coupled to the circular to square waveguide transition; an OMT coupled to the square waveguide; the OMT provided with an OMT intersection between a square waveguide and a pair of rectangular waveguides oriented at ninety degrees to one another, an output port of each rectangular waveguide arranged normal to a longitudinal axis of the dual polarized reflector antenna assembly. Alternatively, a circular waveguide may be applied between the feed port and the circular to square waveguide transition, eliminating the square waveguide, or the rectangular waveguides may be extended longitudinally, also eliminating the square waveguide.Type: GrantFiled: November 10, 2010Date of Patent: April 15, 2014Assignee: Andrew LLCInventors: Junaid Syed, Keith Tappin, Allan Tasker, Gary MacLeod, Wenjie Zhu, Haidong Chen
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Publication number: 20130300621Abstract: A front feed reflector antenna with a dish reflector has a wave guide is coupled to a proximal end of the dish reflector, projecting into the dish reflector along a longitudinal axis. A dielectric block may be coupled to a distal end of the waveguide and a sub-reflector coupled to a distal end of the dielectric block. A shield is coupled to the periphery of the dish reflector. A subtended angle between the longitudinal axis and a line between the focal point and a distal periphery of the shield is 50 degrees or less.Type: ApplicationFiled: July 22, 2013Publication date: November 14, 2013Applicant: Andrew LLCInventors: Ronald J. Brandau, Junaid Syed
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Patent number: 8581795Abstract: A front feed reflector antenna with a dish reflector has a reflector focal length to reflector diameter ratio of less than 0.25. A wave guide is coupled to a proximal end of the dish reflector, projecting into the dish reflector along a longitudinal axis. A dielectric block is coupled to a distal end of the waveguide and a sub-reflector is coupled to a distal end of the dielectric block. A shield is coupled to the periphery of the dish reflector. The sub-reflector diameter is dimensioned to be 2.5 wavelengths or more of a desired operating frequency.Type: GrantFiled: September 12, 2011Date of Patent: November 12, 2013Assignee: Andrew LLCInventors: Stephen W Simms, Ronald J Brandau, Junaid Syed, Douglas John Cole, Chistopher D Hills
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Publication number: 20130057445Abstract: A front feed reflector antenna with a dish reflector has a reflector focal length to reflector diameter ratio of less than 0.25. A wave guide is coupled to a proximal end of the dish reflector, projecting into the dish reflector along a longitudinal axis. A dielectric block is coupled to a distal end of the waveguide and a sub-reflector is coupled to a distal end of the dielectric block. A shield is coupled to the periphery of the dish reflector. The sub-reflector diameter is dimensioned to be 2.5 wavelengths or more of a desired operating frequency.Type: ApplicationFiled: September 12, 2011Publication date: March 7, 2013Applicant: ANDREW LLCInventors: Stephen W. Simms, Ronald J. Brandau, Junaid Syed, Douglas John Cole, Chistopher D. Hills
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Publication number: 20120019424Abstract: A dual polarized reflector antenna assembly, provided with a reflector dish coupled to a feed hub with a feed port there through; a transceiver support bracket coupled to a backside of the feed hub; a circular to square waveguide transition coupled to the feed port; a square waveguide coupled to the circular to square waveguide transition; an OMT coupled to the square waveguide; the OMT provided with an OMT intersection between a square waveguide and a pair of rectangular waveguides oriented at ninety degrees to one another, an output port of each rectangular waveguide arranged normal to a longitudinal axis of the dual polarized reflector antenna assembly. Alternatively, a circular waveguide may be applied between the feed port and the circular to square waveguide transition, eliminating the square waveguide, or the rectangular waveguides may be extended longitudinally, also eliminating the square waveguide.Type: ApplicationFiled: November 10, 2010Publication date: January 26, 2012Applicant: ANDREW LLCInventors: Junaid Syed, Keith Tappin, Allan Tasker, Gary Macleod, Wenjie Zhu, Haidong Chen
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Patent number: 8077113Abstract: An enclosure for the open end of a reflector antenna includes a cylindrical shroud coupled to a distal end of the reflector antenna, the shroud generally coaxial with a longitudinal axis of the reflector antenna. A retaining band is coupled to an inner diameter of the shroud, proximate a distal end of the shroud. The retaining band is provided with a retaining groove open radially inward towards the longitudinal axis. The retaining groove provided with a bottom extending radially outward beyond an outer diameter of the shroud. A radome is seated within the retaining groove.Type: GrantFiled: June 12, 2009Date of Patent: December 13, 2011Assignee: Andrew LLCInventors: Junaid Syed, Matthew Lewry, Ian Renilson, Stephen Simms
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Publication number: 20110074652Abstract: A polarization adjustment assembly for a reflector antenna is provided with a radio bracket with a mounting flange. The mounting flange is coupled to a hub provided with a stop portion. Fasteners couple the radio bracket to the hub via slots in the mounting flange, rotatable with respect to the hub within the extents of the slots. An adjustment bolt passes through a boss coupled to the mounting flange. The adjustment bolt abuts the stop portion, whereby longitudinal displacement of the adjustment bolt with respect to the boss rotates the radio bracket with respect to the hub. Alternatively, the positions of the boss and stop portion on the mounting flange and hub may be exchanged.Type: ApplicationFiled: September 20, 2010Publication date: March 31, 2011Applicant: ANDREW LLCInventors: Matthew Lewry, Junaid Syed, Keith Tappin, Chris Hills
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Patent number: 7907097Abstract: A feed assembly for a reflector antenna having a unitary portion of dielectric material, a proximal end of the unitary portion configured for connection with the reflector antenna. The unitary portion having a waveguide portion extending between the proximal end and a sub reflector support having a sub reflector surface at a distal end. The waveguide portion and the sub reflector surface covered with an RF reflective material. The unitary portion may be cost effectively formed via, for example injection molding and or machining. Alternatively, the feed assembly may be formed as a horn feed, without a sub reflector.Type: GrantFiled: July 17, 2007Date of Patent: March 15, 2011Assignee: Andrew LLCInventors: Junaid Syed, Chris Hills
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Patent number: 7898497Abstract: A reflector antenna mount for a reflector antenna with a primary mount coupled to a support arm. The primary mount rotatable in a first axis relative to the support arm. A secondary mount coupled to the primary mount; the secondary mount pivotable in a second axis relative to the primary mount. The reflector antenna coupled to a front side of the secondary mount; an electronics enclosure of the reflector antenna positioned on a back side of the secondary mount, the electronics enclosure coupled to the reflector antenna. A dielectric enclosure provided with a front face and a side surface coupled to the primary mount. The front face spaced away from the reflector antenna, outside of a range of motion of the directional antenna in the second axis.Type: GrantFiled: October 1, 2008Date of Patent: March 1, 2011Assignee: Andrew LLCInventors: Junaid Syed, Chris Hills, Allan Tasker, Ian Renilson, Keith Tappin
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Publication number: 20100315307Abstract: An enclosure for the open end of a reflector antenna includes a cylindrical shroud coupled to a distal end of the reflector antenna, the shroud generally coaxial with a longitudinal axis of the reflector antenna. A retaining band is coupled to an inner diameter of the shroud, proximate a distal end of the shroud. The retaining band is provided with a retaining groove open radially inward towards the longitudinal axis. The retaining groove provided with a bottom extending radially outward beyond an outer diameter of the shroud. A radome is seated within the retaining groove.Type: ApplicationFiled: June 12, 2009Publication date: December 16, 2010Applicant: ANDREW LLCInventors: Junaid Syed, Matthew Lewry, Ian Renilson, Stephen Simms
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Patent number: 7802370Abstract: An antenna feed angular alignment tool for an antenna feed and method of use. The tool having a body with a bore between a first end and a second end; a capsule, retained within the bore, having a first material and a second material enclosed within a cavity of the capsule. Coupling feature(s) integral with the body, proximate the first end are configured to rotationally couple with the antenna feed. The first material and the second material having different densities are movable within the capsule, indicating when the capsule and thereby the tool are aligned with a horizontal plane.Type: GrantFiled: October 15, 2008Date of Patent: September 28, 2010Assignee: Andrew LLCInventors: Matthew Lewry, Junaid Syed, Keith Tappin, Graeme Thomson
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Publication number: 20100088911Abstract: An antenna feed angular alignment tool for an antenna feed and method of use. The tool having a body with a bore between a first end and a second end; a capsule, retained within the bore, having a first material and a second material enclosed within a cavity of the capsule. Coupling feature(s) integral with the body, proximate the first end are configured to rotationally couple with the antenna feed. The first material and the second material having different densities are movable within the capsule, indicating when the capsule and thereby the tool are aligned with a horizontal plane.Type: ApplicationFiled: October 15, 2008Publication date: April 15, 2010Applicant: ANDREW LLCInventors: Matthew Lewry, Junaid Syed, Keith Tappin, Graeme Thomson
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Publication number: 20100079353Abstract: A reflector antenna mount for a reflector antenna with a primary mount coupled to a support arm. The primary mount rotatable in a first axis relative to the support arm. A secondary mount coupled to the primary mount; the secondary mount pivotable in a second axis relative to the primary mount. The reflector antenna coupled to a front side of the secondary mount; an electronics enclosure of the reflector antenna positioned on a back side of the secondary mount, the electronics enclosure coupled to the reflector antenna. A dielectric enclosure provided with a front face and a side surface coupled to the primary mount. The front face spaced away from the reflector antenna, outside of a range of motion of the directional antenna in the second axis.Type: ApplicationFiled: October 1, 2008Publication date: April 1, 2010Applicant: ANDREW LLCInventors: Junaid Syed, Chris Hills, Allan Tasker, Ian Renilson, Keith Tappin
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Publication number: 20090021442Abstract: A feed assembly for a reflector antenna having a unitary portion of dielectric material, a proximal end of the unitary portion configured for connection with the reflector antenna. The unitary portion having a waveguide portion extending between the proximal end and a sub reflector support having a sub reflector surface at a distal end. The waveguide portion and the sub reflector surface covered with an RF reflective material. The unitary portion may be cost effectively formed via, for example injection molding and or machining. Alternatively, the feed assembly may be formed as a horn feed, without a sub reflector.Type: ApplicationFiled: July 17, 2007Publication date: January 22, 2009Applicant: ANDREW CORPORATIONInventors: Junaid Syed, Chris Hills
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Patent number: 7138958Abstract: A radome adapted to reduce backlobes of an associated reflector antenna via application of a conductive ring with an inward facing edge about the periphery of the radome. The conductive ring may be applied extending around the radome periphery to an inside and or outside surface of the radome. The conductive ring may be formed upon the radome by metalising, electrodaging, over molding or the like. Further, the conductive ring may be a metal, metallic foil, conductive foam or the like which is coupled to the radome. An absorber in the form of a ring or a surface coating applied to the radome and or the distal end of the reflector may also be added between the radome and the reflector.Type: GrantFiled: February 27, 2004Date of Patent: November 21, 2006Assignee: Andrew CorporationInventors: Junaid Syed, Roy Campbell, David Sutherland