DATA SHEET

Model 15A-N and 15A-TNC Full-Wave Quadrafilar Helix Antennas

Right-Hand Circular Polarization

The Model 15A is a hemispherically omni-directional antenna optimized for maximum gain at low elevation angles.

The 15A is a lightweight, resonant, full-wave Quadrafilar Helix antenna phased for right-hand circular polarization. The pattern is optimally shaped to give maximum gain just above the horizon (where path loses are minimal). The model 15-A antenna provides improved performance over the half-wave Quadrafilar Helix (14A) for all low-orbiting satellite applications. The 15-A will also provide optimum performance for satellite platforms located at higher latitudes. For platforms with look angles above 45º elevation, the Model 14-A antenna should be used.

The 15-A antenna is matched using the exclusive Synergetics MICRO-FEED, resulting in superior axial ratio, SWR, and bandwidth. The sealed radome is constructed of G-10 fiberglass with a white two-part polyurethane paint finish for long life under hostile atmospheric conditions.

Electrical