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Dual Shell Gridded Reflectors With over 30 successful deliveries, Dual Shell Gridded Reflectors exemplify Vanguard Space Technologies, Inc.' strong heritage in the Space Market. With ten years of development and continuous improvement, Vanguard now produces apertures ranging from 0.7m (27.5 inches) to greater than 2.3m (90.5 inches) using proven engineering, material systems, gridding techniques and test methods. For larger apertures, Vanguard's unique intercostal design provides customers with excellent on-orbit stability without sacrificing RF performance. Customers with stringent PIM (Passive Intermodulation) requirements rely on Vanguard's strict environmental controls and detailed procedures to produce compliant PIM-critical hardware.
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Single Shell Graphite Reflectors With the Commercial Space Industry trending toward highly accurate single-shell reflectors, Vanguard Space Technologies, Inc. now provides shaped, "super elliptical" apertures exceeding 2.5m (98.4 inches.) Customers depend on the same excellence in engineering, manufacturing and testing provided with Vanguard's Dual Shell Reflector heritage.
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Nadir Tower Reflectors In 2006, Vanguard engineered and manufactured its first Nadir-deck Tower Reflector. Vanguards' Tower Reflectors represent the blend of advanced reflector design heritage and dimensionally stable structures experience. Vanguard engineers the Nadir Towers to maintain strict tolerance control between the customer-supplied feed assembly and the reflector surface(s) over the full orbital environment while providing stiffness (>70 Hz, first mode) and low mass.
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Pallet Reflectors In 2007/08, Vanguard successfully manufactured, integrated and tested three complex Gregorian Single Shell Reflectors and their associated Pallet Structures. Each Reflector sub-system required precise alignment of the reflector to the Pallet to ensure proper hold-down and release with respect to the hinge axis. Additionally, two of the reflector sub-systems required precision alignment of sub-reflectors that are permanently attached to the Pallet structures. Each Pallet Reflector mounted to a spacecraft wall and became an integral part of the satellite's structural and RF performance.
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