18 GHz Compact Aluminum-Foil Low-PIM High-Power RF Cable B46

Engineering Note

The B46 is a high-power flexible RF coaxial cable positioned as the compact 18 GHz member. It keeps the confirmed B-series construction with LD PTFE dielectric, aluminum foil interlayer, silver-plated copper shielding, and blue FEP jacket, while emphasizing compact 4.60 mm blue FEP jacket for tighter high-power routing envelopes. Use it for RF routes where the confirmed electrical class and cable size fit the system envelope.

Cable Name	B46
Product Type	Flexible RF Cable / High Power Cable
Cable Structure	6-layer construction with LD PTFE dielectric, aluminum foil interlayer, dual shielding, and blue FEP jacket
Operating Frequency	18 GHz
Cut-off Frequency	35 GHz
Impedance	50 ohm +/- 1 ohm
Velocity of Propagation	76%
Shielding Effectiveness	>90 dB
Low PIM Performance	-155 dBc
Dielectric Withstanding Voltage	1000 V.DC
Bending Radius	Static 23 mm [0.906 in]; Dynamic 46 mm [1.811 in]
Weight	0.053 kg/m [0.0356 lbs/ft]
Temperature Range	-55 ~ +200 deg C [-67 ~ +392 deg F]
Inner Conductor	Silver-plated copper, 1.02 mm [0.040 in]
Dielectric	Low Density PTFE (LD PTFE), 3.07 mm [0.121 in]
Interlayer	High temperature aluminum foil, 3.43 mm [0.135 in]
Jacket	FEP / Blue, customizable, 4.60 mm [0.181 in]
Attenuation	35.4 dB/100m at 1000 MHz; 50.4 at 2000 MHz; 62.0 at 3000 MHz; 88.8 at 6000 MHz; 103.2 at 8000 MHz; 116.0 at 10000 MHz; 129.9 at 12400 MHz; 148.7 at 16000 MHz; 158.3 at 18000 MHz
Average Power	0.569 kW at 1000 MHz; 0.400 at 2000 MHz; 0.324 at 3000 MHz; 0.227 at 6000 MHz; 0.195 at 8000 MHz; 0.174 at 10000 MHz; 0.155 at 12400 MHz; 0.135 at 16000 MHz; 0.127 at 18000 MHz