Extended Performance Omni Antenna Designed for Link16 Ground-Based Installations

European Antennas Ltd

Category: Omni Antennas | 13/10/2006 - 12:26:04

This rugged, extended performance omni antenna can be incorporated in to MIDS, JTRS and JTIDS for high data rate transmission.

Gain of 7dBi, when compared with traditional 2dBi gain omni antennas, can nearly double the range of a system that is constrained by output power. Receive sensitivity is increased significantly - usually the limiting factor for communications with distant airborne platforms. The higher gain also allows reduced transmit power from the ground-based transmitter and helps reduce the need for large generators in the case of tactical mobile Link16 systems.

Ground Based Omni Directional Antenna

The antenna has a corporate feed structure to ensure that the peak gain remains at the same elevation angle (+1.5dB) at all frequencies, despite the large bandwidth for this omni pattern.

European Antennas has designed the radiating elements and feed structure to produce an omni antenna with less than ±1° azimuth ripple across the entire band. This ensures that the customer can be confident in connection to the aircraft whatever the orientation of the antenna.

Although European Antennas' Link16 high gain omni has 17° elevation beamwidth, detailed analysis has demonstrated that the aircraft will receive stronger signals the closer it gets to the ground antenna, irrespective of aircraft height or elevation angle, including overhead at 30,000 ft. This is illustrated in Figure 1 showing relative signal strength at the aircraft flying at a range of heights and from overhead to 250 miles.

The antenna is very light weight (1.7kg) and has a base spigot for mounting to standard 1 inch pole mount clamps, although other configurations are possible.

NATO stock number 5985-99-758-6585.

Signal Strength/Range