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Sources Sought Solicitation # N6893623Q0222
System Performance Minimum Requirements Environmental Specifications
| Operating Environment |
| All Weather: 1000 M atmospheric fog and 4 mm/hr rain fully protected with GFM radome. |
| Operating Temperature |
| -40 to 65 degrees C. (Ambient). UseMIL-STD-810F (1), Methods 501.3 and 502.3 as guidance |
| Storage Temperature |
| -40 to 71 degrees C |
| Humidity |
| Use MIL-STD-810F(1), Method 507.3 as guidance |
| Shock |
| Use MIL-STD- 810F, Method 516.4 as guidance |
| Operating Vibration |
| Use MIL-STD-810F(1), Method 514.4 as guidance |
| Handling Vibration |
| Use MIL-STD-810F(1), Method 514.4 as guidance |
| Electromagnetic Interference (EMI) |
| Use MIL-STD-461E as guidance |
| Electrostatic Discharge |
| Use MIL-STD-1686C as guidance |
Antenna Subsystem Performance Specifications
| RF Input Flange Location |
| Per ThinKom Drawing 1001250-500 |
| Frequency Range |
| 34.900 – 35.200 GHz |
| Gain |
| Average minimum gain at 35.0 GHz and elevation scan angles of -10, --5, 0, +5 and +10 degree: 28 dBi. |
Absolute minimum gain at 35.0 GHz and any elevation angle: 27 dBi
| RF Power |
| < 10W peak, < 5 W avg. |
Azimuth Beamwidth (-3 dB points) Average maximum azimuth beamwidth at 35.0 GHz and elevation scan angles of -10, -5, 0, +5 and +10 degree: ≤ 3.5 degrees Absolute maximum azimuth beamwidth at 35.0 GHz and any elevation angle: ≤ 4.0 degrees Note: Azimuth plane is plane perpendicular to cylindrical axis
| Azimuth Beam Squint over frequency |
| Maximum squint shall be no more than 1.5 degrees |
Elevation Beamwidth (-3 dB points) Average maximum elevation beamwidth at 35.0 GHz and elevation scan angles of -10, -5, 0, +5 and +10 degree: ≤ 5.8 degrees Absolute maximum elevation beamwidth at 35.0 GHz and any elevation angle: ≤ 6.0 degrees
| Elevation Scan Angle |
| -10 to +10 deg with respect to horizontal (normal to antenna face). Must be controllable to within 0.5 deg of desired pointing angle. |
| Elevation Scan Mechanization |
| Electrically scanned using voice coil actuator. Actuator shall be powered with not more than 5 VDC and shall require less than 0.5A for full scan actuation. |
| Azimuth Sidelobe level |
| Average maximum at 35.0 GHz and elevation scan angles of -10, -5, 0, +5 and +10 degree: -18 dB with respect to main lobe |
Absolute maximum at 35.0 GHz and any elevation angle: ≤ -17 dB with respect to main lobe
| Elevation Sidelobe level |
| Average maximum at 35.0 GHz and elevation scan angles of -10, -5, 0, +5 and +10 degree: -15 dB with respect to main lobe |
Absolute maximum at 35.0 GHz and any elevation angle: ≤ -12 dB with respect to main lobe
| VSWR |
| Average maximum at 35.0 GHz and elevation scan angles of -10, -5, 0, +5 and +10 degree: ≤ 2.2:1 |
| Coupler |
| Waveguide coupler with a -20 dB+/- 1 dB coupled port and -35 dB +/- 5 dB (w/-20 dB coupled port terminated) as measured at the capped injection port. A coaxial power reporting diode, described by Advanced Microwave, Inc. dwg 300136, shall be attached to the coupled port and cabled as described in NAWC 80080450 sht 2. |
| GFM Radome |
| Material: Quartz fiber reinforced cyanate-ester |
Dielectric Constant: 3.25 Loss tangent: 0.0045 Internal Diameter: 6.892” – 6.896” Wall Thickness: 0.383” +/- 0.006”
Mercury Exclusion The supplies furnished under this contract shall not contain functional mercury. Functional mercury is that mercury or mercury compound required for proper operation of the supplies or without the presence of which the supplies would fail to function properly. External contamination by metallic mercury or mercury compounds shall be cause for rejection of the supplies. The mercury vapor concentration in trapped air within any tested item(s) shall not exceed 0.01 mg. per cubic meter.
Antenna Subsystem Testing Each antenna subsystem will be tested per ATP1001250-100 with the corresponding test results provided per ATR1001250-100. In addition, the contractor shall provide an elevation scan table which lists encoder count for each one degree beam position from -10 to +10 degrees of scanner elevation. At a minimum, data will be taken at encoder counts of 0, 10, 20, 40, 60, 80 and 100 to establish the baseline for the elevation scan table. The encoder data shall be accurate within 1.0 degree with respect to the maximum gain position. Interpolation of actual test data to develop the scan table is acceptable. It will be the Government’s responsibility to program the antenna interface memory from this scan table. Using the scan table, RF performance data shall be taken at a minimum of -10, -5, 0, +5 and +10 (+/-0.5) degrees of elevation scan angle and at frequencies of 34.9, 35.0 and 35.2 GHz..
Deliverables Deliverables include antenna subassemblies manufactured per drawing 1001250-1, tested per ATP1001250-100, test results per ATR1001250-100 and elevation scan table in contractor/government agreed upon format.