Sky-Stealth 45X
Ultimate Airborne Antenna
X-Band
Easily retrofitted to other bands like Ka ,Ku, XKa, KuKa
2-Axis
Robust pedestal for GEO, MEO and LEO satellite tracking avoiding any gimbal lock
Lightweight
Fully Self-Contained system
Overview
The new challenge has been engaged. SKY-STEALTH45X is the latest breakthrough airborne compliant SATCOM terminal on the market. Designed and engineered by the same team that has created outstanding multi-band communications products for the past 10 years, this new airborne, 2-axis stabilized, 450 mm parabolic antenna system has a dual reflector configuration ensuring the highest efficiency, while providing a low cross-polarization thanks to its corrugated feed-horn.
SKY-STEALTH45X has been designed for X band, while providing an effortless reconfiguration option for different frequency bands and satellite constellations by simply selecting the proper RF components upgrade.
*Given the fierce competition and pursuit of technological supremacy some of our graphic representations are deliberately simplified
Radio-Frequency
Radio-Frequency design has been optimized to obtain the best link budget and the highest efficiency.
The antenna can be equipped with different RF subsystems to operate in all available bands (X, Ku,Ka, XKa, KuKa).
An ADE (Axially Displaced Ellipse) dual reflector configuration ensures the highest efficiency while a corrugated feed-horn provides a low cross-polarization.
A rotating polarizer allows to obtain the dual switchable polarization making unnecessary the use of large size waveguide switches. All the experience acquired designing multi-band systems has been used to create this RF architecture capable to fit in the limited available space.
The overall result is a high efficiency and very compact RF subsystem.
Mechanics
Mechanical design guarantees outstanding tracking performances even during the most intricated aerial evolutions, thanks to the use of advanced electric motors coupled to the structure via harmonic gearboxes. The movement of the stabilization and aiming axes (Azimuth and Elevation) takes place through Brushless DC electric motors with Hall effect sensors, served by an absolute incremental Encoder with an accuracy of 0.1 arc seconds. Carbon based Composite Materials and titanium alloys have been selected to withstand the harshest environments without compromising the performances of the antenna system, decreasing the needs of periodical maintenance. Size and swept volume are optimized for tail or fuselage mounting on airplanes or unmanned vehicles.
Electronic
Antenna control Unit (ACU) has been specifically tailored on the antenna to take advantage of all the available space, All the electronic boards are self-contained in the moving part of the antenna, minimizing the impact in term of space and cable routing required to set-up the aircraft/UAV. The ACU is based on several modules that manage the motors, the attitude system, the tuner. All the modules are constantly monitored through dedicated hardware to implement the BIT functions, hardware watchdog is implemented to monitor critical failures of software or of the power supply system. Innovative algorithm based on hyper-complex mathematics, borrowed from astronautics attitude system, has been implemented to improve the pointing dynamics and delete uncertainties caused by heading drifting effects. All the Antenna parameters and diagnostic data are available through an intuitive and user-friendly web interface.