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18/19 Series airlines


18/19 Series

The 18 and 19 Series Precision Airlines are the most accurate impedance standards available today, and they are the recognized traceability path for impedance at high frequencies. Anritsu airlines are a critical component when measuring accurate impedances, enabling measurements down to 1.006 SWR to 18 GHz.

A beadless connector is used at the measurement end to provide a minimum reflection connection. The other end is beaded to keep the center conductor captive, thus fixing the plane of reference at the beadless end.

  • Virtually lossless gold over silver plating
  • Provides impedance traceability to NIST
  • Enables measurements down to 1.006 SWR to 18 GHz, 1.01 SWR to 26.5 GHz, and 1.02 SWR to 40 GHz


 Frequency Range (GHz)

 Test Port Connector

 Beaded Port Connector

(test port)

 Dimensions L(cm) x dia(cm)


 2 GHz — 18 GHz




 30 x 0.7


 2 GHz — 18 GHz




 30 x 0.7


2 GHz — 26.5 GHz



1.006 to 18 GHz

 25 x 0.35

Temperature Range: +25 °C ±5 °C
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