The RLACS354 is a precision-tuned surface mount triple-band antenna that provides coverage for triple-band GPS/QZSS-L1/L2/L5, GLONASS-G1/G2/G3,
Galileo-E1/E5a/E5b, BeiDou-B1/B2/B2a, NavIC-L5, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], plus L-Band correction services. It is especially designed for precision triple-frequency positioning.
This antenna provides superior multipath-rejection and axial ratio, a linear phase response, and tight phase centre variation (PCV), while protecting against intermodulation and saturation caused by high-level LTE 700 MHz signals. It is housed in a magnetically mounted, IP67 weatherproof enclosure.
Features
- Very low noise preamp (< 2.5 dB typ.)
- Low axial ratio (< 1.5 dB at zenith)
- Tight phase centre variation
- High-gain LNA (37 dB typ.)
- Low current (45 mA typ.)
- ESD circuit protection (15 kV)
- Invariant performance from 2.5 to 16 VDC
- IP67, REACH, and RoHS compliant
Benefits
- Excellent interference mitigation
- Excellent multipath rejection
- Increased system accuracy
- Excellent signal-to-noise ratio
| Technology |
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| Dual-feed Stacked RHCP ceramic patch |
| GNSS | |
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| Constellation | Band | Gain | Axial Ratio |
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| GPS/CZSS | L1 | 4 dBic typ. at Zenith | < 1.0 dB at Zenith |
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| L2 | 4 dBic typ. at Zenith | < 1.0 dB at Zenith |
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| L3 | - 1.5 dBic typ. at Zenith | < 1.5 dB at Zenith |
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| GLONASS | G1 | 2.5 dBic typ. at Zenith | < 1.5 dB at Zenith |
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| G2 | 2.5 dBic typ. at Zenith | < 1.5 dB at Zenith |
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| G3 | 2.5 dBic typ. at Zenith | < 1.5 dB at Zenith |
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| Galileo | E1 | 4 dBic typ. at Zenith | < 1.0 dB at Zenith |
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| E5A | - 1.5 dBic typ. at Zenith | < 1.5 dB at Zenith |
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| E5B | 2.5 dBic typ. at Zenith | < 1.5 dB at Zenith |
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| E6 | - | - |
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| BeiDou | B1 | 4 dBic typ. at Zenith | < 1.0 dB at Zenith |
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| B2 | 2.5 dBic typ. at Zenith | < 1.5 dB at Zenith |
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| B2a | - 1.5 dBic typ. at Zenith | < 1.0 dB at Zenith |
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| B3 | - | - |
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| IRNSS/NavIC | L5 | 4 dBic typ. at Zenith | < 1.5 dB at Zenith |
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| QZSS | L5 | - | - |
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| L-Band Services (1525 MHz to 1559 MHz) | 3.5 dBic typ. at Zenith | < 1.0 dB at Zenith |
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| Physical | |
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| Size | 69 mm diameter x 22 mm height |
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| Weight | 181 g |
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| Mount | Magnetic |
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| Environmental | |
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| Operating Temperature | - 40 °C to 105 °C |
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| Storage Temperature | - 50 °C to 105 °C |
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| IP Rating | IP67 |
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| Compliance | IPC-A-610, FCC, RED / CE Mark, RoHS, REACH |
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| Frequency Bandwidth | Out of Band Rejection |
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| Lower Band | 1559 - 1606 MHz | ≥ 70 dB @ ≤ 1050 MHz≥ 65 dB @ ≤ 1125 MHz≥ 70 dB @ ≥ 1350 MHz |
| L-Band Correction Services | - | ≥ 65 dB @ ≤ 1500 MHz≥ 45 dB @ ≤ 1525 MHz≥ 05 dB @ ≤ 1536 MHz≥ 30 dB @ ≥ 1626 MHz≥ 65 dB @ ≥ 1650 MHz |
| Upper Band | - |
| Electrical | |
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| Gain | 37 dB typ. | 35 dB min. |
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| Noise Figure | 2.5 dB typ. @ 25 °C |
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| VSWR | < 1.5:1 typ. | 1.8:1 max. |
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| Supply Voltage Range | 2.5 to 16 VDC nominal, up to 50mV p-p ripple |
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| Supply Current | 45 mA typ. @ 25 °C |
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| ESD Circuit Protection | 15 kV air discharge |
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| P 1db Output | 5.5 dBm typ. |
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| Group Delay | 12 ns @ (L1+G1) | 7 ns @ (L5+L2+G2) |
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| Impedence | 50 ohms |
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