KAELEN MICROWAVE

KL-300A

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

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Frequency
DC–50 GHz
Series
KL-A · Flexible, low-loss, phase-stable
Outer diameter
3.1 mm
Attenuation @ 1 GHz
46.8 dB/100 m
Operating temperature
–55°C ~ +165°C

Structure & Materials

ElementDimension (mm)Material
Center Conductor0.70Silver-Plated Copper
Dielectric1.93Low-Density PTFE
Inner Shield2.09Silver-Plated Copper Tape
Outer Shield2.74Silver-Plated Copper Braid
Outer Jacket3.10Gray PFA (Custom Colors Available)

Electrical Properties

ParameterValue
Operating FrequencyDC – 50 GHz
Cutoff Frequency60 GHz
Characteristic Impedance50 Ω
Velocity of Propagation82%
Shielding Effectiveness> 90 dB
Dielectric Withstanding Voltage1000 V DC

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

Frequency (MHz)Attenuation (dB/100m)Avg. Power (kW)
100046.80.407
200066.60.286
300081.90.232
6000117.10.163
8000135.90.140
10000152.60.125
12400170.80.111
18000207.90.092
26500255.40.075
40000318.90.060
50000360.10.053

Mechanical & Environmental

ParameterValue
Static Bend Radius16 mm
Dynamic Bend Radius31 mm
Weight0.027 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-300A.