Remarkably easy and repeatable measurements even at 330 GHz
- Ideal for evaluation of low-loss dielectric materials with tan δ of 0.01 or less
- Automatic measurement in about 5 minutes to obtain the frequency characteristics in the frequency band
- Easy installation: Normal laboratory environment is sufficient
The Fabry-Perot resonator method is ideal for evaluating low-loss dielectric materials at high frequencies up to 330 GHz, which cannot be covered by split-cylinder resonators. Traditionally, the Fabry-Perot resonator has been considered a specialized instrument for a few specialists, but EM Labs has developed a solution that defies conventional wisdom by focusing on ease of use and repeatability in real-world applications. Even at the high frequency of 330 GHz, highly reproducible measurement results can be obtained regardless of operator skill or installation environment.
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Tell us your frequency range and sample requirements, and we will recommend a suitable configuration.
Watch and Learn: Fabry-Perot Resonator
Simple to Use, Powerful in Performance — See It in Action!
EM labs channel
The Signal Path（TSP）
Our Fabry-Perot Resonator was recently showcased on the highly acclaimed science and electrical engineering YouTube, The Signal Path (TSP)—a favorite among industry professionals, students, and hobbyists!
This video provides:
・ Essential knowledge about permittivity measurement
・ The required setup for measurements
・ A step-by-step guide to the measurement process
Watch the video now!
Discover the value and practicality of our product for yourself!
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 (Square) [mm]
| resonator | Lower limit | Recommended | Upper limit |
|---|---|---|---|
| E/W/D/G/J band | 45 | 50 | 55 |
| BroadBand | 60 | 65 | 94 |
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 over nearly the entire measurement frequency range 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.
※BB-L：25~55GHz／BB-H：55～110GHz
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.
Example System Configuration
- Network analyzer: N5290A (Keysight Technologies)
- Fabry Perot Broadband (25 – 110 GHz) : FP-BB
- Fabry Perot software : FP-MA
- Cables 1 mm
- Windows PC
Products
| Product number | Product name | Connection |
|---|---|---|
| FP-BB | Fabry Perot 25-110 GHz | 1mm(f) |
| FP-BB-120 | Fabry Perot 25-120 GHz | 1mm(f) |
| FP-BB-140 | Fabry Perot 25-140 GHz | 0.8mm(f) |
| FP-E | Fabry Perot E-band (60-90 GHz) | 1mm(f) or WR12 |
| FP-W | Fabry Perot W-band (75-110 GHz) | 1mm(f) or WR10 |
| FP-D | Fabry Perot D-band (110-170 GHz) | WR6.5 |
| FP-G | Fabry Perot G-band (140-220 GHz) | WR5.1 |
| FP-J | Fabry Perot J-band (220-330 GHz) | WR3.4 |
Applicable standards
- JIS R1660-2
Documents
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Talk to us about products and measurement services
You are welcome to contact us even if your application or measurement conditions are not yet finalized. We can help with product selection, system configuration, and contract measurement services.