L3Harris’ Q156 Series of polarizing grids enable the reception of almost all signal polarizations when fitted to standard horizontally polarized horn apertures. The Q156 Series polarizing grids consist of a multilayer grid structure with lightweight, low-loss, foam core material and provide reception for horizontal, vertical, slant +45 and right-hand and left-hand circular polarizations. An epoxy fiberglass open-faced shell provides the necessary rigidity for flight applications without interfering with antenna reception patterns. The Q156 Series is designed for electronic support measures (ESM) and electronic warfare (EW) applications. The polarizing grids are suitable for a variety of airborne applications. They have a wide angle of view in the azimuth plane, a moderate angle of view in the elevation plane, and have been designed to provide repeatable, unit-to-unit phase tracking.
SPECIFICATIONS
| Frequency range | -1, -2,-5, -6: 2-6 GHz -3, -4, -7: 6-18 GHz |
| Number of apertures covered | -2, -3, -5, -7: single -4, -6: triple -1: quad |
| Input polarization | -1 thru -6: slant 45 +/- 3.5° -7: slant -45 +/- 3.5° |
| Output polarization (aperture side) | Horizontal |
| Phase tracking, relative to standard | Over +/-40° AZ and +/-10° EL 2-6GHz models: +/-4° over 100%, +/-3° over 86% of band 6-18 GHz models: +/-6° over 100%, +/-4° over 76% of band |
| Amplitude Tracking, relative to standard | Over +/-40° AZ and +/-10° EL 2-6GHz models: .4dB maximum 6-18GHz models: .4dB maximum for 80% of band, 1.0dB maximum for 100% of band |
| Power Handling | +34dBm up to 6 GHz maximum, +28dBm above 6 GHz maximum |
| Weight | Varies by model and mounting configuration, consult factory |
| Finish | Chemical film per MIL-C-5541 for interface surfaces, white epoxy all other surfaces |
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