Split Cylinder Resonator 10 - 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 has changed drastically by 5G and automotive radar, which requires an easy to use and accurate material test solution at mm wave frequencies. Answering this requirement, our split cylinders are very widely used in the growing markets.

Example System Configuration

• Keysight Streamline USB Vector Network Analyzer P5007A (44 GHz)
• Split cylinder 28 GHz : CR-728
• Software for split cylinder : CR-MA
• Cables 1.85 mm and 2.92mm adapter
• Windows PC

Watch and Learn: Split Cylinder Resonator

Simple to Use, Powerful in Performance — See It in Action!

Temp & Humidity dependency measurement system

• Temperature Testing: -50°C to 150°C with 10–80 GHz split-cylinder.
• Temp & Humidity Testing: 10–40 GHz range using an environmental chamber.
• Fully Automated: PC controls VNA and chamber — just input settings.
• Ready to Use: Built-in expertise for easy, reliable results.

Reliable Dielectric Evaluation Across Wide Temperature Ranges
As performance demands on materials continue to rise, verifying their behavior under actual operating conditions has become increasingly critical. However, performing reliable permittivity measurements over a wide temperature range has long been a technical challenge. Drawing on expertise gained from evaluating over 50 different samples, we developed a system that delivers meaningful results immediately after installation.

Example System Configuration

• Keysight Streamline USB Vector Network Analyzer P5007A (44 GHz)
• Split cylinder 28 GHz CR-728-TH
• Temp & Hum test software : CR-TH
• Cable set for temp & hum test : CR-TC-CB
• Windows PC
• Chamber (Espec) : SH-662

Columns

Technical documents are available here, featuring details on the equipment principles and application examples. We invite you to explore them.

Measurement Examples

Sample size

Recommended sample size [mm]

Recommended thickness

The appropriate sample thickness depends on the dielectric properties of the material and the resonator being used. As a general guideline, a thickness of approximately 50 to 100 μm is recommended. The sample must be made thinner as the measurement frequency increases or as the dielectric constant (Dk, ε′) and dielectric loss (Df, tanδ) increase.

The graph below shows the maximum sample thickness at which a low-loss material can be measured correctly at measurement frequency of each fixture. For higher-loss materials—typically those with a tanδ greater than 0.01—an even thinner sample may be required. Please use the "Maximum Thickness Calculator" below to determine an approximate maximum measurable thickness. If you are only able to prepare a thicker sample, please contact us for advice.

If you know the approximate dielectric loss (Df, tanδ) of your sample, enter it into the maximum thickness calculator below to estimate the maximum sample thickness that can be measured. We encourage you to make use of this tool.

Products

for room temperature

For temperature & humidity test

Applicable standards

• JIS R1641
• IEC 62562
• IPC-TM-650, 2.5.5.13

Note: JIS R 1641 and IEC 62562 define their applicable measurement frequency ranges only up to 40 GHz.

Documents

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