Helios deployable antenna

Flight Heritage since 2018

Helios deployable antenna


The Helios Antenna features a Quadrifilar Helical Antenna with an electrically powered method of deployment. The Helios Antenna can be developed to operate from 400Mhz to 3000Mhz. The HCT Helios series of antennas can accommodate several operational purposes from near hemispherical coverage to narrow beamwidths, including ISO-FLUX beam patterns. Quadrifilar Helical Antenna patterns can be arranged to be either right hand or left hand circularly polarized. Thus, having significant advantages over linearly polarized antennas. The antennas can be developed to reside in less than one-half of a 1U cube structure. This makes the innovative Helios Antenna appropriate for small satellite applications.
Availability: 90 days

  • Features
  • Product properties
  • Qualification
  • Documents

• Applications:
– CubeSat TT&C
– CubeSat RF Payloads
• Lefthand or Righthand Circular antenna polarization
• Dual Modular Redundant Release Mechanism
• Designed for combination with multiple Receiver/Transceivers
• Compatible with ISIS products and recent Pumpkin, ClydeSpace
and GomSpace products
• Compliant to CubeSat standard

• RF Impedance (deployed): 50 Ohms
• Max RF Power: 1 Watt
• Frequency Range: 1290 to 1340 MHz (L-Band)
• Electrical Power: 8 VDC at 7 Amps for 1 minute to deploy
• Envelope Stowed (l x w x h): 100mm x 100mm x 35mm
• Antenna Axial Height (deployed): 330mm
• Supply Voltage: 8 VDC at 7 Amps for 1 minute to deploy
• Operational Temperature Range: -40°C to 85°C
• Antenna main beam gain: 3dBi+
• Deployment Duration: 60-90s
• Antenna Return Loss at resonance frequency: >10 dB
• Power Consumption:
– Nominal: 0
– During Deployment: 8 VDC at 7 Amps for 1 minute to deploy
• And also available in 436MHz and 2.3GHz
• Interfaces: RF input/ output: MCX Coaxial Connector

• Qualified vibration and thermal testing completed by the Air Force Institute
of Technology at Wright-Patterson Air Force Base, Ohio.
• Space Rated by the United States Air Force