Systems / Deployable Antenna
Deployable Antenna
Burn-wire deployable dipole and turnstile antenna for UHF/VHF.
- Frequency
- 130 - 950 MHz
- Configurations
- Dipole or turnstile
- Release
- Dual-redundant burn wire
- Mass
- 90 g
Overview
The EOS Orbit Deployable Antenna stows dipole or turnstile elements inside a 5.7 mm module and releases them on command. Configurations cover single and dual dipoles and turnstiles, linear or circular polarization, across 130 to 950 MHz.
Every release path is redundant. Each antenna is held by a burn wire cut by two parallel resistive elements, commanded through two independent I2C interfaces, and confirmed by a dedicated deployment switch per antenna. Deployment draws under 5 W and completes in 10 to 30 seconds per antenna.
Features
- Dual or single dipole, or turnstile configurations
- Linear or circular polarization
- 130 - 950 MHz, customized per antenna configuration
- S11 below -10 dB (VSWR < 1.5:1), gain above 0 dBi
- Max RF power 3.5 W
- Dual-redundant burn-wire release per antenna
- Independent deployment sensor per antenna
- Redundant I2C control interfaces (0x74 / 0x75)
Specifications
RF
Deployment
Physical
Qualification
Mechanical
Heritage
Flown on LOGSATS-2. Launched January 15, 2025, on a SpaceX Falcon 9. 440 days of orbital operations.
Commission this system
Write to contact@eosorbit.com with your mission parameters. The engineering team responds with configuration options, lead time, and test documentation.
Contact engineering →EOS-DPYANT-DSH-05 / datasheet on request