UA91
Choke Ring Antenna
UA91 adopts high-gain broadband antenna to receive GNSS signals such as GPS, BDS, GLONASS, Galileo, QZSS and L-Band. The scheme of multi-stage 3D choke coils with completely symmetrical distribution is adopted to achieve higher phase center stability and excellent anti-multipath interference performance. It has excellent performance that the phase center coincides with the mechanical center.
- Multi-constellation and Multi-frequency
- Superior Antenna Phase Center
- Excellent Polar Axis Ratio Performance
- Multipath Suppression
|
Antenna
Performance |
|
|
Frequency |
GPS: L1/L2/L5 BDS: B1/B2/B3 GLONASS: G1/G2/G3 GALILEO: E1/E2/E5/E6C SBAS |
|
Polarization |
Right-handed circular |
|
Axis ratio |
≤2dB @Axial |
|
Antenna Gain |
≥ 5dBi @Axial ≥ -3dBi @Elevation angle 20° |
|
Out-of-roundness |
≤ 1dB @ Elevation angle 20° |
|
Front-to-back Ratio |
≥ 30dB |
|
Rolloff-factor |
≥ 13dB |
|
Phase Center Offset |
± 1.5mm |
|
Low
Noise Amplifier Performance |
|
|
Frequency Range |
1525 ~ 1615 MHz 1182 ~ 1278 MHz |
|
Characteristic Impedance |
50 Ω |
|
VSWR |
≤ 1.3:1 |
|
Noise Figure |
1.6dB Typically @25° |
|
LNA Gain |
40 ± 2dB |
|
In-band Flatness |
± 1.5dB |
|
Out-of-band Suppression |
L1 ± 200 MHz >40dBc L2 ± 200 MHz >50dBc |
|
Differential Transmission Delay |
≤ 5ns (L1-L2) |
|
Antenna Transmission Delay |
15ns typically |
|
Voltage |
3.3 - 12 VDC |
|
Current |
35mA typical |
|
Environmental
performance |
|
|
Operating Temperature |
-55℃
~ +85℃ |
|
Storage Temperature |
-55℃ ~ +100℃ |
|
Humidity |
Up to 100% |
|
Water/Dust Proof |
IP67 |
|
Physical |
|
|
Dimension |
Φ370 mm x H263 mm |
|
Weight |
7.7 Kg |
|
Antenna Interface |
TNC-F |
|
Radome Material |
FRP |
|
Base Material |
Aluminum-magnesium alloy |
|
Mount |
5/8-11UNC-2B |
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