天線特性

NO 項(xiàng)目(Item) 特性(Specifications) PostEnvironmental Tolerance(試驗(yàn)后允許附加誤差)

1 接收頻率范圍(MHz)

Range of Receiving Frequency 1575,42+1.1 ±2.5

2 中心頻率(30*30m㎡蔽時(shí)) Center Frequency(MHz)

(with 30mmSpuareGND plane) 1575.42 ±3.0

3 帶寬 Band Width(MHz)(Retum Loss<-10dB) ≥10 ±0.5

4 駐波比VS.WR(in Center Frequency) ≤2.0 ±0.5

5 增益Gain(Zenith)(dBityp)(with 70mmSquare GND plane 4.5 ±0.5

6 軸比Axial Ratio

(with 70mm Square GND plan) 3.0dB ±0.2

7 偏振方式Polarization 右旋圓極化

Right-Handed Circular

8 特性阻抗Impedance(Ω) 50

9 頻率溫度系數(shù)(ppm/℃)

Frequency Temperature Coefficient 0±10

放大器特性

NO 項(xiàng)目(Item) 特性(Specifications)

1 頻率范圍 1575.42MHz

2 放大器增益 27dB

3 駐波比 ≤2.0

4 噪聲系數(shù) ≤2.0dB

5 直流電壓 3~5V

直流電流 5士2mA

6天線特性antennaperformance

項(xiàng)目Ltem 特性Performance

接收頻率范圍Range ofReceiviing

Frequency BDB1:1561mhz

GPSL1:1575.42mhz GLONASSL1:1602+2mhz

增益Peak Gain 4.5dbi

駐波比V.S.W.R ≤1.5

軸比AxiaLRatio 3.0dB

寬帶BandWidth ≥10mhz

特性阻抗Impedance 50Ω

偏振方式PoLarization 右旋圓極化

頻率溫度系數(shù)(ppm/C)Frequency Temperature Coefficient 0±10