Troll Systems’ 3d Prints an Exponentially Tapered Ultra-Wide Band SkyLink® Airborne Antenna - Covering C to Ku

Metal Additive Manufacturing

Troll Systems’ 3d Prints an Exponentially Tapered Ultra-Wide Band SkyLink® Airborne Antenna Covering C to Ku

Ultra-Wide-Band Directional Antenna - C to Ku

Gain, radiation pattern and Voltage Standing Wave Ratio (VSWR) are the three variables that determine an antenna’s performance. As the data link experts, Troll Systems’ is continually looking for ways to deliver increased antenna performance and efficiencies. This is particularly true for airborne applications where size, weight and range can all be critical factors.

The introduction of metal additive manufacturing, a 3d printing process, allows our antenna design team to develop highly directional antennas that include complex lattices and perfectly balanced, single piece metal assemblies that would otherwise be prohibitively expensive for CNC milling. This enables the antenna group to optimize power, efficiency, bandwidth and gain faster and more affordably than ever before.. Using direct metal laser sintering (DMLS) to sculpt specialized antennas has led to cutting-edge, air-to-ground systems capable of high gain, narrow beamwidths with minimal losses to maximize range and throughput for ultra-broadband airborne data links.

The new quad-ridged exponentially tapered X band antenna for the SkyLink products, produces mid-band gain of nearly 20dBi, AZ and EL beamwidths of less than 25° and exceptional impedance matching resulting in a VSWR of ≤ 2:1, across frequencies from 5 GHz to 13.0 GHz. It consists of four ridges that are capable of producing vertical, horizontal, right and left circular polarizations. This topology provides a smooth transition from the waveguide impedance 50 Ohms to the free space impedance 377 Ohms. This ability to evolve systems optimized for ultra-wide band applications, long-range and advanced radio technologies expands Troll’s ability to deliver customized air-to-ground wireless video and data networks.

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