TW3865天线GPSL1&2+GLONASS G1&2
香港Advanced Information Technology Co.,Ltd
11-18面议
GPS L2 (1226.6MHz), GLonASS G2 (1248MHz 中心频率), GPS L1/WAAS/EGNOS/MSAS (1575.42MHz) 和 GLonASS G1 (1602MHz, 中心频率)。
The TW3805 features a precision tuned, circular stacked patch element with dual feeds. The two orthogonal feeds are combined in a hybrid combiner and the combined signal is band-split in a diplexer for pre-filtering prior to amplification in separate Low Noise Amplifiers (LNAs) for each band.
The TW3805 also offers a tightly grouped phase center over elevation angles from zenith to 0 Degrees (horizon).
The OEM TW3805 is supplied with a standard 60mm diameter circular ground plane, with a coaxial cable terminated with a connector (right angle MCX is shown in the drawing). Mounting holes are provided for attachment to larger ground planes. Custom tuning and ground plane options may be available, depending on purchase level commitment.
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Applications |
Features |
Benefits |
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Specifications
Vcc = 3V, over full bandwidth, T=25°C
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Antenna |
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Patch Architecture |
Circular, Dual Feed, Dual Stacked Patch |
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Gain (100mm ground plane), 1227.6-1246MHz |
3 dBic Min at Zenith on 100mm Ground Plane |
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(100mm ground plane), 1575.42MH-1606MHz |
4.5 dBic Min at Zenith on 100mm Ground Plane |
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Axial Ratio, over full bandwidth, both L1 & L2 |
<3 dB at 90° |
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L2, 1dB Bandwidth, |
1227MHz-1250MHz |
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L1, 1dB Bandwidth, |
1575MHz–1606MHz |
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Polarization |
RHCP, L1 and L2 |
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Electrical |
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Bandwidth at L2 |
1213MHz-1261MHz (Filter bandwidth) |
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Bandwidth at L1 |
1571MHz-1614MHz (Filter bandwidth) |
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Overall LNA Gain |
35dB typ, 32 dB min, each of L1 and L2 Bands, |
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Gain Variation with Temperature. |
3dB over operational temperature range |
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LNA Noise Figure |
2dB max at 25°C |
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VSWR (at LNA input) |
<1.5:1 |
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Supply Voltage Range |
+2.5 to 16 VDC nominal, up to 50mV p-p ripple |
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EMI Immunity |
50V/Meter, excepting L1+/-100MHz and L2 +/-100MHz |
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Supply Current |
25mA typ. at 25°C. |
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ESD Circuit Protection |
15 KV air discharge |
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Out-of-Band Rejection: L1 |
<1500 MHz >50 dB |
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Out-of-Band Rejection: L2 |
<1184 MHz >50 dB |
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Mechanicals & Environmental |
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Mechanical Size |
60mm diameter, 0.75mm thick, see mechanical drawing |
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Operating Temp. Range |
-40 to +85 °C |
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Weight |
150 g |
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Attachment Method |
Through hole screws in ground plane |
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Environmental |
RoHS compliant |
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Shock |
Vertical axis: 50 G, other axes: 30 G |
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Vibration |
3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G |
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Warranty |
One year, parts and labour |
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Ordering Information |
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TW3805 |
32-3805-xx-yyyy-zz |
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Connector: xx |
00=SMA male, 01=TNC male, 02=MCX male, 03=MMCX male, 04=SMB male |
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Cable length: |
yyyy = cable length in mm |
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Custom Tuning: |
zz = Assigned by Tallysman |
