Quadrifilar Helix Antenna
Anywaves
Anywaves Quadrifilar Helix Antennas are custom-designed payload antennas for LEO satellites requiring uniform coverage across their ground footprint, available in deployable and fixed versions.
Key figurescomparable across the catalogue
- TRL
- 9
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Polarization
- Single-circular polarization (LHCP or RHCP, custom)
- Frequency range
- UHF to C-band (custom — defined per project)
- Radiation pattern
- Isoflux — customised gain profile to your coverage requirements
- Fractional bandwidth
- ~10% (per frequency version)
- TRL
- 9
About
The Anywaves Quadrifilar Helix Antennas are custom-designed payload antennas for LEO satellites requiring uniform coverage across their ground footprint. Available in deployable (mast-based, stowed to less than 1.5 U) and fixed versions, they provide an isoflux radiation pattern — a gain profile that increases towards the horizon to compensate for greater path loss at low elevation angles — ensuring consistent signal quality for all ground users within the satellite’s coverage area simultaneously. This makes them the antenna of choice for LEO-PNT navigation transmitters, IoT connectivity payloads, and data relay missions. Operating from UHF to S-band (custom frequency per project), the antennas provide single-circular polarization with a ~10% fractional bandwidth per frequency version. Built with flight-proven space-qualified materials and processes, they undergo a full qualification campaign (vibration, shock, thermal vacuum cycling) with customised acceptance tests on flight models. All parameters — frequency, isoflux gain profile, dimensions — are defined jointly with the customer. ITAR Free.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.