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3.Electrical Characteristics
3.1 Dielectric Antenna
No. | Item | Spec | Post Environmental Tolerance |
1 | Center Frequency | 1575.42MHz | ±3MHz |
2 | Band Width | ±5 MHz | ±1MHz |
3 | V.S.W.R(in BW) | 1.5:1 | — |
4 | Gain(Zenith) | 3dB | ±0.5dB |
5 | Polarization | RHCP | — |
6 | Impedance | 50 Ω | — |
3.2 LNA/Filter
No. | Item | Spec | Post Environmental Tolerance |
1 | LNA Gain | 28±2dB | ±2.5dB |
2 | Noise Figure | 1.5dB | — |
3 | Filter Out Band Attenuation | 12dB Min f0+50MHz 16dB Min f0-50MHz | ±1.0dB |
4 | DC Voltage | 2.2~5V | |
5 | DC Current | 5~15mA | |
3.3 GSM Antenna
No. | Item | Speci |
1 | Frequency | 824~894 MHz/1710~1990 MHz 880~960 MHz/1710~1990 MHz |
2 | V.S.W.R(5m) | ≤2.0:1 |
3 | Gain(Zenith) | 2 dBi |
4 | Impedance | 50 Ω |
3.4 WiFi Antenna
No. | Item | Spec |
1 | Frequency | 2400~2500 MHz |
2 | V.S.W.R(5m) | ≤2.0:1 |
3 | Gain(Zenith) | 0 dBi |
4 | Impedance | 50 Ω |
4.Reliability
Condition:Temperature:40±5°C
Load: DC=5V±0.5 V
Quantity: 2000pcs
Sustained Time: 480h
5.Environmental Specifications
Post Environmental Tolerance (Refer to the form 1~2 )
Condition:Temperature range 25±3°C
Relative Humidity range 55~75%RH
Operating Temperature range -40°C~+85°C
Storage Temperature range -40°C~+100°C
5.1 Moisture Proof
The device should satisfy the electrical characteristics specified in form 1~2 after exposed to the temperature 40±2°Cand the relative humidity 90~95% RH for 96 hours and 1~2 hours recovery time under normal condition.
5.2 Vibration Resist
The device should satisfy the electrical characteristics specified in form 1~2 after applied to the vibration of 10 to 55Hz with amplitude of 1.5mm for 2 hours each in X , Y and Z directions.
5.3 Drop Shock
The device should satisfy the electrical characteristics specified in form 1~2 after dropping onto the hard wooden board from the height of 30cm for 3 times each facet of the 3 dimensions of the device.
5.4 High Temperature Endurance
The device should satisfy the electrical characteristics specified in form 1~2 after exposed to temperature 80±5°Cfor 24±2 hours and 1~2 hours recovery time under normal temperature.
5.5 Low Temperature Endurance
The device should also satisfy the electrical characteristics specified in form 1~2 after exposed to the temperature -40°C±5°Cfor 24±2 hours and to 2 hours recovery time under normal temperature.
5.6 Temperature Cycle Test
6 Weatherproof
Put the antennas in 1m deep water for 12h, and find 100% waterproof.
(Manufactory) GPS+GSM+Wifi Combination Antenna