半硬射频电缆 SFT-50-2 表层可使用三元合金或镀锡镀层

结构参数construction specification

材料material

直径diameter(mm)

1.内导体inner conductor

镀银铜包钢silver plated copper clad steel

镀银铜silver plated copper

0.53

2.绝缘体dielectric

聚四氟乙烯ptfe

1.68

3.外导体outer conductor

①紫铜管copper tube

②镀锡紫铜管tin plated copper tube

③镀合金紫铜管

alloy plated copper tube

2.20

电性能参数&机械性能参数electrical characteristics& mechanical characteristics

阻抗impedance(ohm)

50

电容capacitance(pf/m)

95

灭晕电压corona extinction voltage(kvrms@60hz)

1.50

承受电压voltage withstanding(kvrms@60hz)

5.00

截止频率cut-off frequency(ghz)

61

Zui小弯曲半径min. bending radius (mm)

7.63

外导体承受温度outer conductor integrity temp.(℃)

175

工作温度范围operating temp.(℃)

-55—+125

衰减和平均功率(20℃,在海平面测试条件下)attenuation&average power@20℃and sea level

频率

frequency(ghz)

衰减(典型值)

attenuation(typical) (db/m)

功率(①)

power(watts cw)

0.5

0.45

232.0

1.0

0.64

162.4

5.0

1.51

69.8

10.0

2.22

47.9

20.0

3.29

32.6