18 GHz Medium-Diameter Aluminum-Foil Low-PIM High-Power RF Cable B52

Engineering Note

The B52 is a high-power flexible RF coaxial cable positioned as the medium-diameter 18 GHz option. It keeps the confirmed B-series construction with LD PTFE dielectric, aluminum foil interlayer, silver-plated copper shielding, and blue FEP jacket, while emphasizing 5.20 mm blue FEP jacket with a step up in cable size from B46. Use it for RF routes where the confirmed electrical class and cable size fit the system envelope.

Cable Name	B52
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	28 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 26 mm [1.024 in]; Dynamic 52 mm [2.047 in]
Weight	0.067 kg/m [0.0450 lbs/ft]
Temperature Range	-55 ~ +200 deg C [-67 ~ +392 deg F]
Inner Conductor	Silver-plated copper, 1.29 mm [0.051 in]
Dielectric	Low Density PTFE (LD PTFE), 3.91 mm [0.154 in]
Interlayer	High temperature aluminum foil, 4.28 mm [0.169 in]
Jacket	FEP / Blue, customizable, 5.20 mm [0.205 in]
Attenuation	27.7 dB/100m at 1000 MHz; 39.5 at 2000 MHz; 48.7 at 3000 MHz; 69.9 at 6000 MHz; 81.3 at 8000 MHz; 91.5 at 10000 MHz; 102.7 at 12400 MHz; 117.8 at 16000 MHz; 125.5 at 18000 MHz
Average Power	0.750 kW at 1000 MHz; 0.526 at 2000 MHz; 0.426 at 3000 MHz; 0.297 at 6000 MHz; 0.255 at 8000 MHz; 0.227 at 10000 MHz; 0.202 at 12400 MHz; 0.176 at 16000 MHz; 0.165 at 18000 MHz