• Electronics
• RF_Cable

RF Cable selection

For low loss, high power, low radiation purpose

Andrew Heliax series: 1/4", 3/8", 1/2", ... http://www.rfparts.com/coax/heliaxcoax.html

Drawback: Thick cable = low flexibility. Practically only compatible with N-connectors

FSJ1-50A

• Thickness 1/4"
• Impedance 50 hm
• Capacitance 24.2 pF/ft | 79.4 pF/m
• DCR_in 3.000 Ohms/kft | 9.843 Ohms/km
• DCR_out 2.000 Ohms/kft | 6.562 Ohms/km
• 30MHz 0.973 dB/100ft 3.19 dB/100m
• 50MHz 1.26 4.14
• 150MHz 2.21 7.25
• 200MHz 2.56 8.41
• 894MHz 5.61 18.4
• 1500MHz 7.41 24.3
• 2300MHz 9.37 30.7

FSJ2-50A

• Thickness 3/8"
• Impedance 50 hm
• Capacitance 24.3 pF/ft | 79.7 pF/m
• DCR_in 1.290 Ohms/kft | 4.232 Ohms/km
• DCR_out 1.520 Ohms/kft | 4.987 Ohms/km

• MHz dB/100ft dB/100m AvgPow

• 0.5 0.27 0.082 13.20
• 1 0.383 0.117 13.20
• 1.5 0.469 0.143 13.20
• 2 0.542 0.165 13.20
• 10 1.219 0.372 6.97
• 20 1.732 0.528 4.91
• 30 2.128 0.649 3.99
• 50 2.762 0.842 3.08
• 88 3.691 1.125 2.30
• 100 3.943 1.202 2.16
• 108 4.103 1.25 2.07
• 150 4.864 1.482 1.75
• 174 5.254 1.601 1.62
• 200 5.65 1.722 1.50
• 300 6.99 2.13 1.22
• 400 8.139 2.481 1.04
• 450 8.665 2.641 0.98
• 500 9.166 2.794 0.93

FSJ4-50A

• Thickness 1/2"
• Impedance 50 hm
• Capacitance 25.2 pF/ft | 82.7 pF/m
• DCR_in 0.820 Ohms/kft | 2.690 Ohms/km
• DCR_out 1.000 Ohms/kft | 3.281 Ohms/km

• MHz dB/100ft dB/100m AvgPow

• 0.5 0.231 0.07 15.60
• 1 0.327 0.1 15.60
• 1.5 0.401 0.122 15.60
• 2 0.463 0.141 15.60
• 10 1.044 0.318 10.14
• 20 1.485 0.453 7.12
• 30 1.828 0.557 5.79
• 50 2.377 0.724 4.45
• 88 3.187 0.971 3.32
• 100 3.406 1.038 3.11
• 108 3.546 1.081 2.98
• 150 4.214 1.285 2.51
• 174 4.558 1.389 2.32
• 200 4.908 1.496 2.16
• 300 6.095 1.858 1.74
• 400 7.121 2.17 1.49
• 450 7.592 2.314 1.39
• 500 8.042 2.451 1.32

For high allowable loss, low power, low radiation purpose

BELDEN 1671J

http://www.belden.com/techdatas/english/1671J.pdf

RG-405/U spec 50 Ohm cable. Very flexible. SMA compatible.

Drawback: High loss.

• Thickness RG405
• Impedance 50 hm
• Capacitance 29.5 pF/ft
• DCR_in 64.2 Ohms/kft
• DCR_out 10.2 Ohms/kft

• MHz dB/100ft dB/100m AvgPow

• 500 15.0
• 1000 22.2

Pasternack PE3818-300

RG-405/U spec 50 Ohm cable. Semi-rigid. SMA

This is a semi-rigid cable, and a copper jacket is exposed.

Drawback: High loss. / High stiffness.

• Thickness RG405
• Impedance 50 hm
• Capacitance ---
• DCR_in ---
• DCR_out ---

• MHz dB/100ft dB/100m AvgPow

• 1000 22.2 72.18 130

SRC SteelFlex

RG-405/U spec 50 Ohm cable. Flexible. SMA

=> We just can use 1671J

Drawback: High loss.

• Thickness RG405
• Impedance 50 hm
• Capacitance 29.4pF/ft
• DCR_in ---
• DCR_out ---
• MHz dB/100ft
• 1000 21.7

LMR series

LMR-100A

RG-316/RG-174 compatible, Thin, Flexible (1/4").

• Thickness RG-316/RG-174
• Impedance 50 hm
• Capacitance 30.8pF/ft
• DCR_in 81.0 ohms/kft
• DCR_out 9.5 ohms/kft
• MHz dB/100ft
• 30 3.9 12.9
• 50 5.1 16.7
• 150 8.9 29.4
• 220 10.9 35.8
• 450 15.8 52.9
• 900 22.8 74.9
• 1500 30.1 98.7

LMR-195A

RG-58/RG-142 compatible, still Flexible (1/2").

• Thickness RG-316/RG-174
• Impedance 50 hm
• Capacitance 25.4pF/ft
• DCR_in 7.6 ohms/kft
• DCR_out 4.9 ohms/kft
• MHz dB/100ft
• 30 2.0 6.5
• 50 2.5 8.4
• 150 4.4 14.6
• 220 5.4 17.7
• 450 7.8 25.5
• 900 11.1 36.5
• 1500 14.5 47.7

LMR-200A

Original size, still Flexible (1/2").

• Thickness 0.195"
• Impedance 50 hm
• Capacitance 24.5pF/ft
• DCR_in 5.36 ohms/kft
• DCR_out 4.9 ohms/kft
• MHz dB/100ft
• 30 1.8 5.8
• 50 2.3 7.5
• 150 4.0 13.1
• 220 4.8 15.9
• 450 7.0 22.8
• 900 9.9 32.6
• 1500 12.9 42.4

LMR-240A

Original size, getting stiffer Flexible (3/4").

• Thickness 0.240
• Impedance 50 hm
• Capacitance 24.2pF/ft
• DCR_in 3.2 ohms/kft
• DCR_out 3.89 ohms/kft
• MHz dB/100ft
• 30 1.3 4.4
• 50 1.7 5.7
• 150 3.0 9.9
• 220 3.7 12.0
• 450 5.3 17.3
• 900 7.6 24.8
• 1500 12.9 42.4