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Product Description:
1. The antenna covers BDS B2b/L/S frequency points, providing two major functions: bidirectional communication short message service and anti-jamming function.
2. The antenna consists of four S-anti-jamming units and a stacked BDS B2b/L/S central array element.
Electrical Specifications
Anti-Jam Unit S:
Frequency Range: 2491.75±8.16 MHz
Gain: ≥2.5 dB (Elevation angle 70°-90°)
≥-1.0 dB (Elevation angle 50°-70°) ≥-4.5 dB (Elevation angle 30°-50°)
≥-6.0 dB (Elevation angle 20°-30°) ≥-8.0 dB (Elevation angle 10°-20°)
VSWR: ≤1.5
Polarization: RHCP
Polarization Axial Ratio: ≤3.0 dB (Elevation angle 90°)
≤4.0 dB (Elevation angle 50°-90°)
≤5.0 dB (Elevation angle 20°-50°)
≤7.0 dB (Elevation angle 10°-20°)
Out of Roundness: ≤±4.0dB (Elevation angle above 20°), ≤±4.5dB (Elevation angle 10°-20°)
Isolation Degree: ≥16dB
Centre Unit B2b:
Frequency Range: 1207.14±10.23 MHz
Gain: ≥4.0 dB (Elevation angle 70°-90°)
≥2.0 dB (Elevation angle 50°-70°) ≥0.0 dB (Elevation angle 30°-50°)
≥-2.0 dB (Elevation angle 20°-30°) ≥-4.0 dB (Elevation angle 10°-20°)
VSWR: ≤1.5
Polarization: RHCP
Polarization Axial Ratio: ≤3.0 dB (Elevation angle 90°) , ≤4.0 dB (Elevation angle 50°-90°)
≤5.0 dB (Elevation angle 20°-50°) , ≤6.0 dB (Elevation angle 10°-20°)
Out of Roundness: ≤±1.0dB (Elevation angle above 20°), ≤±1.5dB (Elevation angle 10°-20°)
Centre Unit L:
Frequency Range: 1610~1680MHz
Gain: ≥4.0 dB (Elevation angle 90° @1610.18~1626.5MHz)
≥-4.0 dB (Elevation angle 10° @1610.18~1626.5MHz)
≥1.5 dB (Elevation angle 90° @1673.628±1.6368MHz)
≥-6.5 dB (Elevation angle 10° @1673.628±1.6368MHz)
VSWR: ≤1.5
Polarization: LHCP
Polarization Axial Ratio: ≤1.0dB (Elevation angle 90°), ≤3.0dB (Elevation angle 50°-90°)
≤5.0dB (Elevation angle 20°-50°), ≤6.0dB (Elevation angle 10°-20°)
Out of Roundness: ≤±1.0dB (Elevation angle above 20°), ≤±1.5dB (Elevation angle 10°-20°)
Centre Unit S:
Frequency Range: 2491.75±8.16MHz
Gain: ≥4.0 dB (Elevation angle 70°-90°)
≥2.0 dB (Elevation angle 50°-70°) ≥-1.0 dB (Elevation angle 30°-50°)
≥-3.0 dB (Elevation angle 20°-30°) ≥-5.0 dB (Elevation angle 10°-20°)
VSWR: ≤1.5
Polarization: RHCP
Polarization Axial Ratio: ≤3.0dB (Elevation angle 90°), ≤4.0dB (Elevation angle 50°-90°)
≤5.0dB (Elevation angle 20°-50°), ≤7.0dB (Elevation angle 10°-20°)
Out of Roundness: ≤±1.5dB (Elevation angle above 20°), ≤±2.0dB (Elevation angle 10°-20°)
Mechanical Specifications
Output Connector: SMP-KHT8 (Peripheral S Unit), 2-SMP-KHT8+MCX-KE
Dimensions: Centre Unit: 50×50×13.2 mm, Peripheral S Unit: 23×23×5mm
Weight: <500g
Operating Temperature: -55℃~+85℃
Storage Temperature: -55℃~+85℃
Diagram