Electrical Characteristics

3.1 Dielectric Antenna

Form 1

No.	Item	Specifications	Post Environmental Tolerance
1	Center Frequency	1575.42 MHz	+-3 MHz
2	Band Width	+-5 MHz	+-1 MHz
3	V.S.W.R(in BW)	1.5 /1	—
4	Gain(Zenith)	3 dB	+-0.5 dB
5	Polarization	RHCP	—
6	Impedance	50	—

 

3.2 LNA/Filter

Form 2

No.	Item	Specifications	Post Environmental Tolerance
1	LNA Gain	28+-2 dB	+-2.5 dB
2	Noise Figure	1.5 dB	—
3	Filter Out Band Attenuation	12dB  Min  f0+50MHz 16dB  Min  f0-50MHz	+-1.0 dB
4	DC Voltage	2.2~5 V
5	DC Current	5~15 mA

 

3.3 GSM Antenna

 Form 3

No.	Item	Specifications
1	Frequency	824~960 MHz/1710~1990 MHz 1920~2170 MHz
2	V.S.W.R(5m)	2.0/1
3	Gain(Zenith)	2 dBi
4	Impedance	50

 

3.4 Mechanical

Form 4

No.	Item	Specification
1	Cable	RG174/RG58 30CM
2	Connector	SMA
3	Plastic Housing	Black
4	Mounting	Screw

4.Reliability

Condition  Temperature: 40+-5 degree 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+- 3degree C

Relative Humidity range 55~75%RH

Operating Temperature range -40degree C~+85degree C 

Storage Temperature range -40degree C~+100degree C 

5.1 Moisture Proof 

The device should satisfy the electrical characteristics specified in form 1~2 after exposed to the temperature 40+-2degree 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+-5degree C for 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 -40degree C+-5degreee Cfor 24+-2 hours and to 2 hours recovery time under normal temperature. 

5.6 Temperature Cycle Test 

The device should also satisfy the electrical characteristics specified in form 1~2 after exposed to the low temperature -25degree C and high temperature +85degree C for 30±2 min each by 5 cycles and 1 to 2 hours recovery time under normal temperature. 

 6.Weatherproof

Put the antennas in 1m deep water for 12h, and find 100% waterproof.