供应GPS介质天线/GPS介质陶瓷片/内置天线

品牌:彩勤 型号:DA1575S25 相对增益:1（dB） 频率范围:1575（MHz） 输出阻*:50（Ω） 工作电压:3.3（V） *大功率:1（W） 长度:2（mm）

此GPS天线介质陶瓷系列:尺寸有25*25 20*20 18*18 15*15 13 *13 12*12常用.60*60 30*30 多种尺寸规格可供客户选择要 .适用于卫星定位.导航系统.也可以客户指标订做

1. ELE*RICAL SPECIFICATIONS

*.	Part Number	Outline Dimension	Ground Plane
1-1	DA1575S25T2A	25*25*2mm	35*35mm
1-2	Center Frequency	1575&plu*n;3MHz
1-3	Bandwidth	15MHz min.
1-4	Impedance	50Ω
1-5	Gain @ Zenith	+3.5dBi t*ical
1-6	Frequency Temperature Coefficient	0&plu*n;10 ppm/℃
1-7	Return Loss @fo	20dB min.

2. STRU*URE AND MATERIAL

No.	Description	Structure and material
2-1	Antenna Substrate	Dielectric Ceramics
2-2	Pin	Copper, lead and tin plate
2-3	Electrode	Ag plated
2-4	Ground Base	Ag plated

3.PHYSICAL DIMENSIONS

4.ENVIRONMENTAL SPECIFICATIONS

Standard Condition : Temperature range:25&plu*n;3℃

Relative Humidity range: 55~75%RH

Operating Temperature range:-40℃~+85℃

Storage Temperature range: -40℃~+100℃

4.1 High TemperatureEndurance

The device should satisfy thespecification in Table 1after exposed to temperature 85&plu*n;5℃

for 24&plu*n;2 hours and 1~2 hours recovery time under normal temperature.

4.2 Low TemperatureEndurance

The device should also satisfy thespecification in Table 1after exposed to the temperature

-40℃&plu*n;5℃for 24&plu*n;2 hours and 1~2 hours recovery time under normal temperature.

4.3Moisture Proof

The device should satisfy thespecification in Table 1after exposed to the temperature 40&plu*n;2

℃and the relative humidity 90~95% RH for 96 hours and 1~2 hours recovery time under

normal condition.

4.4 Vibration Resist

The device should satisfy thespecification in Table 1after applied to the vibration of 10 to

55Hz with amplitude of 1.5mm for 2 hours each in X , Y and Z directions.

4.5Drop Shock

The device should satisfy the specification in Table 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.

4.6 Temperature Cycle Test

The device should also satisfy thespecification in Table 1after exposed to the low

temperature -25℃and high temperature +85℃for 30&plu*n;2 min each by 5 cycles and 1 to 2

hours recovery time under normal temperature.