Resonator perturbation method: Split cylinder resonator for permittivity measurement 10 GHz-80 GHz

Easy to use mm wave low loss dielectric test

  • Ideal for evaluating low loss dielectric materials with tan δ 0.01 or less
  • Easy and reproducible dielectric material measurement in millimeter wave band with excellent fixture design
  • Unique excitation mechanism extends the upper limit frequency to 80 GHz

The millimeter wave material market is changing drastically by 5G and automotive radar. A measurement system that can evaluate leading edge materials accurately is needed to succeed in the market.
The 80 GHz split-cylinder resonator responds to this market demand and provides easy-to-use and accurate dielectric material measurements. Our split cylinder has been very well established up to 50 GHz, and the resonator design has been optimized according to the latest machining technology to extend the upper frequency towards 80 GHz. As a result, it has become possible to accurately and easily measure low loss dielectric materials in a wide frequency range from 10 GHz to 80 GHz using a flat plate sample.

Figure: split cylinder
Figure: split cylinder

About technical information, refer to "Resonator Perturbation Technology Overview."

How to prepare your measurement sample, refer to "Proper sample preparation is the first step in accurate measurement."

PTFE measurement example using 80 GHz split cylinder is available on "PTFE repeatability test example", which shows tanδ0.0001 repeatability at 80 GHz.

System Configuration Example

  • Keysight PNA millimeter wave test system N5290A (110 GHz)
  • Permittivity measurement software for split cylinder CR-MA
  • 1 mm test cables
  • Split Cylinder Resonator 80 GHz CR-780
  • Windows PC

Product Line-up

Model Description Res Mode Connectors
CR-710 Split Cylinder Resonator 10 GHz TE011 SMA(f)
CR-720 Split Cylinder Resonator 20 GHz 2.92 mm(f)
CR-724 Split Cylinder Resonator 24 GHz 2.92 mm(f)
CR-728 Split Cylinder Resonator 28 GHz 2.92 mm(f)
CR-735 Split Cylinder Resonator 35 GHz 2.92 mm(f)
CR-740 Split Cylinder Resonator 40 GHz 2.92 mm(f)
CR-750 Split Cylinder Resonator 50 GHz 2.4 mm(f)
CR-780 Split Cylinder Resonator 80 GHz 1 mm(f)

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