电线电缆网 > 标准讨论 培训学习 > 请教这个同轴是什么标准的同轴电缆（完整版）
请教这个同轴是什么标准的同轴电缆 - 无图版
seanleng --- 2014-07-07 10:25:46
1
这个要求是什么同轴电缆？
inner conductor ø mm, material 1,13 Cu
insulation ø mm, material 4,8 foamed PE 63%
1. screening, foil Al-foil double faced, 20% overlapping
2. screening braid, material 128 x 0,12 Al
3. screening, foil Al-foil double faced, 20% overlapping
4. screening braid, material 96 x 0,12 Al
jacked ø mm, material/colour 8,2 PVC/white
attenuation at (20 ºC in dB/100m):
100 MHz 4,9 dB
200 MHz 6,7 dB
300 MHz 8,5 dB
500 MHz 11,9 dB
800 MHz 15,3 dB
1000 MHz 17,4 dB
1350 MHz 21,3 dB
1750 MHz 23,9 dB
2050 MHz 27,3 dB
impedance 75 Ω
screening immunity > 120 dB
velocity factor v/c 0,80
min. bending radius mm 40
inner conductor ø mm, material 1,13 Cu
insulation ø mm, material 4,8 foamed PE 63%
1. screening, foil Al-foil double faced, 20% overlapping
2. screening braid, material 128 x 0,12 Al
3. screening, foil Al-foil double faced, 20% overlapping
4. screening braid, material 96 x 0,12 Al
jacked ø mm, material/colour 8,2 PVC/white
attenuation at (20 ºC in dB/100m):
100 MHz 4,9 dB
200 MHz 6,7 dB
300 MHz 8,5 dB
500 MHz 11,9 dB
800 MHz 15,3 dB
1000 MHz 17,4 dB
1350 MHz 21,3 dB
1750 MHz 23,9 dB
2050 MHz 27,3 dB
impedance 75 Ω
screening immunity > 120 dB
velocity factor v/c 0,80
min. bending radius mm 40
迷儿 --- 2014-07-08 17:38:24
2
这是 典型的 美标RG三同轴75ohm柔性射频线，， 导体+介质+内屏蔽+中间层+外屏蔽+护套，，RG双屏蔽都是这样的结构 ，， 你照着规格做就好啦
xiefu2000 --- 2014-08-07 11:19:08
3
既然给出要求了，按照要求做不就可以了
349255965 --- 2015-04-18 10:51:22
4
63%发泡度都给你定了。你按密度算呗。