KAELEN MICROWAVE

KL-550A

Low-Loss Phase-Stable Coaxial Cable — Low-Loss, Phase-Stable Coaxial Cable — Flexible Construction

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Frequency
DC–18 GHz
Series
KL-A · Flexible, low-loss, phase-stable
Outer diameter
5.6 mm
Attenuation @ 1 GHz
22.3 dB/100 m
Operating temperature
–55°C ~ +165°C

Structure & Materials

ElementDimension (mm)Material
Center Conductor1.60Silver-Plated Copper
Dielectric4.30Low-Density PTFE
Inner Shield4.50Silver-Plated Copper Tape
Outer Shield5.10Silver-Plated Copper Braid
Outer Jacket5.60Gray PFA (Custom Colors Available)

Electrical Properties

ParameterValue
Operating FrequencyDC – 18 GHz
Cutoff Frequency26.5 GHz
Characteristic Impedance50 Ω
Velocity of Propagation83%
Shielding Effectiveness> 90 dB
Dielectric Withstanding Voltage2000 V DC

Attenuation & Power Handling (Typical, 25°C / 40°C)

Frequency (MHz)Attenuation (dB/100m)Avg. Power (kW)
100022.31.233
200031.60.870
300038.80.709
600055.00.500
800063.60.432
1000071.20.386
1240079.50.346
1600090.50.304
1800096.10.286

Mechanical & Environmental

ParameterValue
Static Bend Radius28 mm
Dynamic Bend Radius56 mm
Weight0.075 kg/m
Operating Temperature–55°C ~ +165°C

Features & benefits

  • Phase-stable across temperature (<750 ppm, –55°C to +85°C)
  • Low insertion loss
  • High power handling
  • Low PIM (−155 dBc)
  • Lightweight construction

Typical applications

  • Phased-array radar
  • Airborne electronics
  • Electronic warfare (EW)
  • Any application demanding tight loss and phase tolerance

Related parts

Need this cable terminated? Request a custom assembly using KL-550A.