Deployable UHF and VHF antennas v.7.11 Overview The ISIS deployable antenna system is a flight proven technology which contains up to four shape memory alloy tape antennas of up to 55 cm length, which deploy from all four sides of the structure upon command. Its innovative and compact design provides your CubeSat with the best transmissions quality for a minimum space. Available configurations • 4 VHF and/or UHF monopoles • Single VHF or UHF dipole • Dual VHF and/or UHF dipole • VHF or UHF Turnstile (circular polarization) • Combination of UHF / VHF Dipole + Monopole(s) Flight heritage • Design based on heritage from the Delfi-C3 satellite (2008) • Flight heritage since July 2010 (StudSat, India) Applications • CubeSat TT&C • CubeSat RF Payloads Features • Possibility to connect one, two or four radios • Dual redundant deployment system • Software safe/arm implementation • Deployment confirmation switch per antenna • Additional temperature sensors • Special mechanical and electrical Engineering Models available Compatibility • Designed for compatibility with the ISIS VHF/UHF Transceiver Products • Compatible with ISIS products and recent Pumpkin, Clyde Space and GomSpace products • Compliant to CubeSat standard Included in shipment • ISIS deployable antenna system • Connectors and cables • Burn wire refurbishment set Options • 30 mm diameter center through-hole for pass-through of payload or other interfaces (for mono/dipole configurations) • Solar panel on top • Magneto torquer integrated in top panel Deployable UHF and VHF antennas Envelope fits between the feet on CubeSat top or bottom side Specifications RF Impedance (deployed) 50 Ohm Max RF Power 2W Insertion loss < 1,5 dB Frequency Range Electrical power 10-13 MHz bandwidth within 130- 500 MHz Nominal: < 20mW Mass ( exact mass depends on antenna configuration) < 100 g Envelope stowed: (l x w x h ) Supply Voltage During Deployment: 2 W 98 mm x 98 mm x 7 mm 3 V (5V and 8V available on demand) Qualification • Thermal Testing range: -30 to +70 ºC • Qualification Vibration Testing for most launch vehicles • Flight units thermally acceptance tested for workmanship Qualification and Acceptance Testing Telemetry Outputs (over I2C) • Safe/arm status • Deployment status • Temperature Vibration Interfaces • One miniature 9 pin OMNETICS connector • RF input / output: 1-4 SSMCX, female, 50 Ohm Total Ionizing Dose Test QT AT Functional Mechanical Shock Thermal Cycling Thermal Vacuum QT is performed on the design/qualification model AT is performed on the unit to be shipped This document is subject to change without notice. The latest technical information and price information is available on www.cubesatshop.com ISIS – Innovative Solutions In Space Molengraaffsingel 12-14, 2629 JD, Delft, The Netherlands • T +31152569018 • F +31152573969 • [email protected] • www.isispace.nl
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