1. GSM Antenna
General Description
Below is a table summarizing the antenna design specification.
1.1 Electrical Properties
Parameter |
Description |
| Frequency Band |
850/900/1800/1900/2170Hz |
| Nominal impedance |
50ohm |
| Polarization |
Vertical |
| Electrical Wave |
1/4 £f Dipole |
| V.S.W.R |
2.0;1 |
| Antenna Average Gain |
0dBi |
| Note:Gain includes the cable loss |
1.2 Mechanical Properties
Parameter |
Description |
| Antenna Type |
External Antenna |
| Antenna Cover |
TPEE 630 |
| Touch Type |
Magnet Type |
| Connector Type |
SMA 180° (Male) |
| Antenna Dimensions |
47.3mm x 72.6mm |
| Cable |
RG174 - 3M or 5M |
| Antenna Color |
Black |
| Operating Temperature Range |
-20°C~+55°C |
| Storage Temperature Range |
-30°C~+55°C |
2. GPS Antenna
Electrical Specifications |
| Input voltage |
2.3~5.5V |
| Current |
2.5V;6.6mA Typical |
| 3V;8.6 mA Typical |
| 4V;12.6 mA a Typical |
| 5V;16.6 mA Typical |
Antenna |
| Operating Frequency |
1575.42±1.023 MHz |
| Gain at 10° elevation |
-1 dBic Typ |
| Gain at Zenith |
5.0 dBic Typ |
| Bandwidth |
10MHz min.@S11¡Ø10dB |
| Polarization |
R.H.C.P |
| Axial Ratio |
3.0dB Typ |
LNA |
| Operating Frequency |
1575.42 ± 1.023MHz |
| Gain |
28dB Typ |
| Noise Figure |
1.5 dB Typ |
| Filter |
20 dB 25dB min @fo +/-50MHz
30 dB 35dB min @fo +/-100MHz
*fo=1575.42MHz |
| Output Impedance |
50ohm |
| VSWR |
2.0 max |
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