GNSS-750 Wideband Choke Ring Antenna

Our multi-constellation GNSS-750 delivers next generation wideband choke ring antenna technology. Rugged, low profile construction makes it ideal for reference stations, geological monitoring and other applications requiring a robust high performance antenna. Multi-constellation tracking of GNSS measurements from existing and subsequent satellite constellations makes this antenna future proof.

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Features

• Stable phase center
• Ultra-wideband Dorne-Margolin element
• Aluminum alloy construction
• Tracks signals when visible, down to the horizon and below

 

Benefits

• High precision measurements
• Increased signal observations ensure higher availability and reliability
• Eliminates need for future redesign
• Rugged construction delivers reliable performance even in harsh environments
• 3D antenna improves low elevation tracking

 

Attributes

General Info Width/Diameter (mm) 380.00   Height (mm) 200.00   Weight (g) .00 Constellation GPS     GLONASS     Galileo     BeiDou   Tracking Max Num of Frequency Triple   L-Band     SBAS     QZSS   Antenna Form Factor ChokeRing
Antenna Mounting Pole   Performance LNA Gain (dB)
43

 

Superior Performance and Accuracy

The innovative design of this 3D antenna improves low elevation tracking. An insert was added to the choke ring design to enhance multipath rejection based on results from live GIOVE-A, GIOVE-B and L5 signals.

Proven Robust Technology

Utilizing an ultra-wideband Dorne-Margolin antenna element, our GNSS-750 optimizes antenna gain, enabling use with most manufacturers' geodetic receivers. Its sturdy aluminum alloy construction ensures it will withstand difficult environmental conditions.

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Note: The GNSS-750 Antenna is not within the scope of the RoHS Directive. It is intended to be used as a Reference Station antenna at a fixed location, over a long period of time, and as such it qualifies to use the &#;Large-Scale Fixed Installation&#; RoHS scope exemption.

 

The TT&C Ka Choke Ring Antenna is a highly reliable, compact solution for telemetry, tracking, and command operations in the Ka-band, designed specifically for demanding space applications. It is available in two distinct models: one dedicated to reception (Rx) and the other to transmission (Tx). The design can be scalable in frequency to meet different operational needs.

Utilizing a choke ring design, this antenna minimizes multipath and interference effects, ensuring precise signal transmission and reception even in challenging environments. It offers single- or dual-circular polarization (RHCP/LHCP) and provides optimal performance across the 19.7&#;20.2 GHz (Tx) and 29.5&#;30 GHz (Rx) frequency bands. This antenna has a hemispherical gain pattern, coupled with excellent axial ratio stability across a wide angular range. The reflection coefficient is better than -18 dB, ensuring minimal signal loss and high efficiency.

This TT&C Ka Choke Ring Antenna combines compact design with high performance, ensuring that satellite operators can rely on stable, high-quality communications throughout their missions. Engineered to endure the extreme conditions of space, it is lightweight and ITAR-free, making it suitable for a wide range of commercial and scientific applications.

 

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