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Quadrifilar Helix Antennas (RQ) | LEO SATCOM | FT-RF
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SATCOM & AEROSPACE SOLUTIONS
Quadrifilar Helix Antennas (RQ)
The Quadrifilar Helix Antenna (RQ Series) is an advanced, high-reliability solution engineered for non-geosynchronous satellite tracking and high-velocity space-to-ground data communications. Featuring a symmetrical four-element helical architecture, it eliminates the need for complex mechanical tracking systems, delivering flawless, continuous signal coverage for LEO constellations and aerospace telemetry.
*Custom frequency tuning, phase-matched sets, and specialized connector options (SMA, TNC, N-Female) available upon request. Made in Taiwan.
🛰️ Next-Gen Engineering Highlights
Isoflux Radiation Pattern
Balances gain seamlessly from zenith to horizon, compensating for atmospheric loss at low elevation angles.
Circular Polarization (CP)
Superior LHCP/RHCP performance mitigates Faraday rotation and multipath signal fading in mobile environments.
Zero Mechanical Steering
Wide hemispherical beamwidth ensures automated full-sky satellite lock without motorized gimbals.
Rugged Aerospace Casing
Housed in ultra-durable, weatherized radomes built for extreme marine, aviation, and outdoor missions.
Key Applications:
| Key Parameter | Technical Specification |
|---|---|
| Constellation Support | LEO / MEO Non-Geosynchronous Satellite Coverage |
| Polarization Purity | High Axial Ratio Circular Polarization (LHCP / RHCP) |
| Beamwidth Coverage | Wide Hemispherical Isoflux Full-Sky Horizon Pattern |
| Nominal Impedance | 50 Ω Standard Impedance Match |
| Tracking Architecture | Automated Pass Tracking without Mechanical Gimbals |
| Enclosure Standard | Weatherized Aerospace-Grade High-Durability Radome |
LEO / MEO Constellations Circular Polarization (CP) Hemispherical Coverage High Axial Ratio Purity 50 Ω Impedance Match Aerospace Grade Quality
🛠️ Customization & Engineering Services
We offer tailored electrical and mechanical customization for satellite communication and aerospace systems:
- Custom Frequency Tuning: Specific band optimization for UHF, L-Band, S-Band, or telemetry frequencies.
- Polarization Options: Dedicated LHCP or RHCP factory configuration.
- Radome Finishes: UV-resistant white, forest green, or stealth black finishes.
- Traceable Testing: Axial Ratio, VSWR & Gain Calibration Test Reports.
Direct Technical Support: info-tw@ft168.com.tw
📐 Recommended SATCOM Accessories
Enhance your satellite tracking installation with compatible RF assemblies and mounts:
RQ-456M03-NF
400 to 512 MHz 3dbi RHCP Quadrifilar Helix Antenna for Vehicles, N-Female Connector
View Details
Made in Taiwan
| Frequency Range: | 400 MHz - 512 MHz |
| Polarization: | RHCP (Circular) |
| Gain: | 3 dBi |
| V.S.W.R: | ≤ 2.0 : 1 |
RQ-1550M03S-NF
1.3 to 1.7 GHz 3dbi RHCP Quadrifilar Helix Outdoor Antenna, N-male connector, 46mm Stainless steel ring L-Type Bracket
View Details
Made in Taiwan
| Frequency Range: | 1.3 GHz - 1.7 GHz |
| Gain: | 3 dBi |
| Weight: | 0.28 kg (Ultra-Lightweight) |
| Dimensions: | 48 x 149 mm |
RQ-1550M03-NF
1.3 to 1.7 GHz 3dbi RHCP Quadrifilar Helix Antenna for Vehicles, N-Female Connector
View Details
Made in Taiwan
| Frequency Range: | 1.3 GHz - 1.7 GHz |
| Gain: | 3 dBi |
| Vertical Beamwidth: | 61° (Focused) |
| Weight: | 1.0 kg |
RQ-1113G03-NF
1.1 to 1.3 GHz 3dbi RHCP Quadrifilar Helix Antenna for Vehicles, N-Female Connector
View Details
Made in Taiwan
| Frequency Range: | 1.1 GHz - 1.3 GHz |
| Gain: | 3 dBi |
| V.S.W.R: | ≤ 2.0 : 1 |
| Dimensions: | 140 x 181 mm |
RQ-850M03-NF
0.8 to 1 GHz 3dbi RHCP Quadrifilar Helix Antenna for Vehicles, N-Female Connector
View Details
Made in Taiwan
| Frequency Range: | 0.8 - 1.0 GHz |
| Polarization: | RHCP (Circular) |
| Gain: | 3 dBi |
| V.S.W.R: | ≤ 2.0 : 1 |
