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STR-2: GPS Antenna

STR-2: GPS Antenna

1-ENVIRONMENTAL CONDITIONS

1.1

Operation Temperature

-40° C to + 90° C

1.2

Storage Temperatur

-40° C to + 100° C

1.3

Relative Humidity

10% to 95%


2-ELECTRICAL SPECIFICATIONS

2.1 Input Voltage Min:2.5V    Max:5.5V
2.2 Power Consumption At 3.0 V

Typ.: 9.0mA.  Max: 15mA.

At 4.0 V Typ.: 11mA.  Max: 15mA.

3-MECHANICAL SPECIFICATIONS

3.1 Mounting Magnet mount.
3.2 Horizontal Pulling Force of Magnet 1.5 Kg Min.
3.3 Shock 10msec. Half sine wave.
3.4 Vibration

10~200Hz Log. Sweep 3.0G
sweep time: 15 Minutes, 3 Axes.

3.5 Magnet Threshold The antenna must stay atlached to the vehicle, at a speed of 180 km/h.
3.6 Cable Pulling Off Force 5-5- Min At room temperature Min 7Kg /10sec.Apply 7Kg /10sec pulling force between the cableand the antenna unit,no visible damage shall appear on the cable and connector.
3.7 Bending Test After bending 908 right and left for 1,000 cycles, no permanent damage were found.
3.8 Weight 105g Max.
3.9 Dimension See Fig. 2


4.0 ANTENNA

4.1 Frequency  Range

1575.42 ¡Ó 1.023 MHz.

4.2 Gain

90° C: 5.0 dBi Min.
°C: -1.0 dBic Min.
Mounted on the 60mm*60mm ground plane.

4.3 Polarization RHCP
4.4 Axial Ratio .90° C: Typ 1.0dB
Mounted on the 60mm*60mm ground plane.

5.0 LNA

5.1 Frequency Range 1575.42 ¡Ó 1.023 MHz
5.2 MMIC Gain 27 dB  Typ
5.3 Noise Figure 1.5 dB Max. ( +25° C ¡Ó °C)
1.8 dB Max. ( +85 ° C)
5.4 Out Band Rejection

fo = 1575.42MHz
fo ¡Ó 20 MHz     7dB MIN
fo ¡Ó 30 MHz     12dB MIN
fo ¡Ó 50 MHz     20dB MIN
fo ¡Ó 100 MHz    30dB MIN

5.5 Output Impedance

50

5.6 Output VSWR

2.0 Max

6.0 TOTAL SPECIFICATIONS (Through Antenna, LNA, Cable and Connector)

6.1 Frequency Range 1575.42 ¡Ó 1.023MHz
6.2 Gain

At 90°C 31 ¡Ó 3dBi - (cable loss)   Note:1

mounted on the the 60mm*60m ground plane
6.3 Output Impedance

50

6.4 VSWR 2.0 Max

Note 1: Cable Loss = Max.( ¡V1.2dB / m)

7.0 OUTLINE