2. Electrical Characteristics
2.1 GSM Antenna
Form 1
|
No.
|
Item
|
Specifications
|
Post Environmental Tolerance
|
|
1
|
Frequency（MHz）
|
2400～2500MHz
|
±3 MHz
|
|
2
|
V.S.W.R（in BW）
|
≤1.6︰1
|
—
|
|
3
|
Gain（Zenith）
|
2.5 dB
|
±0.5 dB
|
|
4
|
Polarization
|
Vertical
|
—
|
|
5
|
Impedance
|
50 Ω
|
—
|
2.2 Mechanical
Form 2
|
No.
|
Item
|
Specification
|
|
1
|
Cable
|
RG174 or others
|
|
2
|
Connector
|
MCX
|
|
3
|
Plastic Housing
|
Black
|
|
4
|
Size
|
Φ71×14mm
|
3. Reliability
Condition：Temperature: 40±5℃
Load: DC=5V±0.5 V
Quantity: 2000pcs
Sustained Time: 480h
4. Environmental Specifications
Condition：Post Environmental Tolerance (Refer to the form 1)
Temperature Range 25±3℃
Relative Humidity Range 55~75%RH
Operating Temperature Range -40℃~+85℃
Storage Temperature Range -40℃~+100℃
4.1 Moisture Proof
The device should satisfy the electrical characteristics specified in form 1 after exposed to the temperature 40±2℃ and the relative humidity 90~95% RH for 96 hours and 1~2 hours recovery time under normal condition.
4.2 Vibration Resist
The device should satisfy the electrical characteristics specified in form 1 after applied to the vibration of 10 to 55Hz with amplitude of 1.5mm for 2 hours each in X, Y and Z directions.
4.3 Drop Shock
The device should satisfy the electrical characteristics specified in form 1 after dropping onto the hard wooden board from the height of 30cm for 3 times each facet of the 3 dimensions of the device.
4.4 High Temperature Endurance
The device should satisfy the electrical characteristics specified in form 1 after exposed to temperature 80±5℃ for 24±2 hours and 1~2 hours recovery time under normal temperature.
4.5 Low Temperature Endurance
The device should also satisfy the electrical characteristics specified in form 1 after exposed to the temperature -40℃±5℃ for 24±2 hours and to 2 hours recovery time under normal temperature.
4.6 Temperature Cycle Test
The device should also satisfy the electrical characteristics specified in form 1 after exposed to the low temperature -25℃ and high temperature +85℃ for 30±2 min each by 5 cycles and 1 to 2 hours recovery time under normal temperature.
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