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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.
Key Features:
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Isoflux pattern — uniform coverage across the full footprint
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Deployable mast — <1.5 U stowed for volume-constrained platforms
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Deployable + fixed versions — one range, two integration options
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UHF to C-band — LEO-PNT, IoT and data relay frequencies
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Full qualification campaign + customized acceptance tests
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ITAR Free — worldwide delivery
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Included Services
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- Complete EIDP (End Item Data Package)
- In-Depth Engineering Support
- Further Testing Available On Demand
- Specific Requests Analysis With Experts
| Parameter | Value |
|---|---|
| Lead Time | 6 to 12 months (contact us for shorter lead time) |
| Frequency Band | UHF to C-band (custom — defined per project) |
| Polarization | Single-circular polarization (LHCP or RHCP, custom) |
| Radiation pattern | Isoflux — customized gain profile to your coverage requirements |
| Fractional bandwidth | ~10% (per frequency version) |
| Stowed size (deployable version) | < 1.5 U |
| TRL | 9 |
| Type | Document Name | Action & Size |
|---|---|---|
| No public documentation available. Please inquire for details. | ||
