KVH 30米网状卫星天线

 30米天网卫星天线







 

kvh

特性:
铝网
栅式底座组装
拉伸成形铝反射面
CKu波段可选
线、圆极化可选
单极化、双极化可选
手动、电动可选
抗腐
产品可定制

 

30 M天线的特点

1.可选的C波段,ku波段,ka波段频率;
2.线性或圆形极化进料系统作为选项;
3. 2端口或4端口可供选择;
4.主反射器采用形卡塞格伦天线,低噪声温度和低旁瓣。
5.馈电喇叭具有波纹喇叭,宽波束宽度和极化。
6.反哈希环境能力;
7.交流调速电机驱动控制系统。

30M Earth Station Antenna

Electrical Specification

Antenna

30M Earth Station Antenna

Operating Frequency, GHz

Receive

Transmit

Receive

Transmit

3.625 to 4.2

5.85 to 6.425

3.4 to 4.2

5.85 to 6.65

Antenna Gain, dBi: Tx(at Tx port to feed)

Rx((at Rx port of feed)

66.30+20lg [f/6(GHz)]

64.85+20lg [f/4(GHz)]

66.20+20lg [f/6(GHz)]

64.75+20lg [f/4(GHz)]

Cross Polarization Isolation for LP

On Axis: 35dB, Within 1dB beamwidth:30dB

Axial Ratio (dB) for CP

0.5dB per port

VSWR

CP:1.25:1    LP:1.3:1

Antenna Noise Temperature: 5deg Elevation

10deg Elevation

20deg Elevation

40deg Elevation

58K

50K

45K

39K

 

64K

57K

48K

43K

 

-3dB Beam Width(deg)

0.24

0.16

0.24

0.16

Total Power Handling Capability

5kw (cw) per Tx port

Feed Interface

CPR-229G

CPR-137G

CPR-229G

CPR-137G

Feed Insertion Loss, dB

0.3

0.3

0.3

0.3

Port to Port Isolation: Tx to Rx(Tx Freq)

Rx to Rx

Tx to Tx(Same Band)

85dB

CP: 20dB  LP: 30dB

CP: 20dB  LP: 30dB

Radiation Pattern:Sidelobe

CCIR.580

Mechanical Specification

Azimuth

0 to170deg continuousw.r.t true south

Elevation

5 to 90deg (continuous)

Finishes: Reflector Surface

        Pedestal & Back Structure

Aluminum panels with high-diffusing white paint

Galvanized steel

Surface Accuracy

0.7mm (R.M.S)

Environmental Specification

Operational Wind

79km/h Gusting to 120km/h

Survival Wind

250km/h

Rain

Up to 100mm/h operational and survival

Relative Humidity

Up to  operational and survival

Temperature

- 50Deg.c  to  +70Deg.c

Radial Ice(Survival)

25mm on all surface

Shock and Vibration

As encountered during shipment by commercial air, sea, or truck

Corrosive atmosphere

As encountered in coastal regions and/or heavily industrialized areas

Seismic (Survival)

0.3g (H), 0.15g (V)