Permittivity/Permeability
measurement

microwave - mm wave

Solutions Catalog
Measurement examples to show what you really get

For more information about the products, please visit our website.

The right way for accurate permittivity and permeability measurement
EM Labs offers a variety of solutions and featured applications to help your business succeed.

Resonator method

High-accuracy, Ideal for evaluation of low-loss materials
Measurement of frequency response up to 330 GHz
p4

Speedy measurement ideal formany samples
p6

Temp & Humidity
dependency p7

Fabry-Perot resonator
Permittivity : 25-330 GHz

Split cylinder resonator
Powderp10Cavity resonator

Permittivity : 10-80 GHz
Temperaturedependency:
10-40 GHz(-50-150℃)

Permittivity : １-10 GHz

1 GHz

S-parameter
method10 GHz

100 GHz

300 GHz

Wide-range measurement of reflection/transmission, dielectric
constant and magnetic permeability
Around the automotive
radar p8

Powders and liquids
up to 330 GHz
p9

Waveguidesample holder forsmaller samples

Free space
Permittivity：18-330 GHz

Permeability：18-330 GHz

Waveguide sample holder
Permittivity：
8.2-40 GHz
Permeability：
8.2-40 GHz

1 GHz

10 GHz2100 GHz

300 GHzTailor measurement methods to the material and geometry

Material

Free space

Split cylinder

Fabry-Perotresonator

Cavityresonator

Wave-guidesample holder

Free space

Split cylinder

Fabry-Perotresonator

Cavityresonator

Wave-guidesample holder

Low-loss material
Medium to high lossmaterial
Magnetic material
Shield material

geometry

Plate
FilmRod
Block
PowderLiquidGelBest

Most recommended method.

GoodCan be used in many cases

PossibleCan be used in some cases, with some limitations such as narrowmeasurement range.

N/A

Cannot be used.

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Fabry-Perot resonatorFrequency characterization of low-loss materials up to 330 GHz• Automatic measurement 25 - 330 GHz by 2.5 GHz• Accurate evaluation of low-loss materials• Anisotropic evaluation is possible

Example：COP

187 μmExample：MPI 50 μm

＠ 25 – 330 GHz

＠ 25 – 330 GHz

4Fabry-Perot resonator

Example：PP38 μm

＠ 110 – 170 GHz

A total of 8 measurements were performed while changing the orientation.

90/270deg

Good repeatability allows evaluation ofeven 1.5% anisotropy.

0/180deg

Fabry-Perot resonatorfor permittivity measurement
product line-up

FP-BB Fabry-Perot Resonator Broad band 25 - 110 GHz
FP-E Fabry-Perot Resonator E-band 60 – 90 GHz
FP-W Fabry-Perot Resonator W-band 75 – 110 GHz
FP-D Fabry-Perot Resonator D-band 110 – 170 GHz
FP-G Fabry-Perot Resonator G-band 140 – 220 GHz
FP-J Fabry-Perot Resonator J-band 220 – 330 GHz

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Split cylinder

Split Cylinder ： Only 15 seconds per sample. Ideal for
repeated measurements of large sample volumes.
Example：COP

187 μm

＠ 28 GHz, 40 GHz

Open the lever.
Insert a sample.
115 sec.

2Large volume samples can becompleted in a short time.
3

Close the lever and measure.

Repeatability check: Measuring a sample 10 times while changing the orientation.

6Split cylinder

Split cylinder for temperature and humidity test
Example : MPI•μm, L Pμm ＠ 28 GHz

Test 1 : Temperature dependency : -50℃ to 150℃
Small variation Dk with temp
LCP Df increase with temp
DfDkLCP
MPI

LCP

MPI℃℃

•Test 2 : Humidity dependency : 25℃ 30%, 60%, 90%RH
LCP Dk significantly
increases with humidity.

MPI Df significantly increaseswith humidity.

DkDfMPIMPILCPLCP%RH%RH*Temperature and humidity test isavailable only as the measurement service(page 11).

Split cylinder resonatorfor permittivity measurement
product line-up

CR-7xx Split Cylinder Resonator: 10, 20, 24, 28, 35, 40, 50, 60, 80 GHz
CR-MA Permittivity measurement software

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Free SpaceFree Space for automotive related materials evaluation
Example：ABS 2 mm Dk ＠ 60 – 90 GHz
Test the sample 10 times, changing the front and back, to check the repeatability of the fixture.

1%tanD = 0.01

Example：Polycarbonate 2 mm oblique incidence 60 - 90 GHzReflection measurements at different
incident angles from 20 to 75 degrees

Check reflectance vs. angle at 77 GHz

Oblique reflection measurements in TM mode

Reflectance vs Incidence angle at 77GHz

Minimum reflection at Brewster angle

8

Free Space

Plates, powders and liquids up to 330 GHz
Example: Df of various resin sheets, 60-330 GHz

Df=0.02

Example: Liquid Dk evaluation, 26.5 - 330 GHz

Free space Material Measurement Solutions
product line-up

FS-330 Free space 18-330 GHz
FS-Eband Free space 60-90 GHz9Cavity resonator

Measuring powder dielectric constants reproducibly withthe cavity resonator
Example: DkDf frequency characteristics of powders, 1-10 GHzZnO
Al2O3ZnO
K2SO4
Al2O3PTFE

PTFE
K2SO4

Example: DkDf temp characteristics of powders, -40 to 110℃, 2.45 GHz
＠＠

Al2O3
Al2O3ZnO
ZnO

graphene fluoride
graphene fluoride

Evaluation of temperature characteristics of powders is available only as the measurement service (page 11).

Cavity resonatorfor permittivity measurement
product line-up

CP-xxx Cavity resonator：1, 2, 2.45, 3, 5, 5.8, 10 GHz
CP-MA Permittivity measurement software

10Measurement service of dielectric constantand magnetic permeability
Need a material evaluation now? We'd be happy to help.
•Offers the best method according to your requirements•

Equipped with leading edge test systems up to 330 GHz•

Reliable measurements by experts

Please contact us
email：mido@emlabs.jp

A wide variety of measurements

Cavity resonator
Permittivity: 1 - 10 GHz
In addition to stick samples, powders
and liquids are also possible.

Split cylinder resonator
Permittivity: 10 - 80 GHz
Temp characteristics (-50 to 150℃)
Temp and humidity characteristics

Fabry-Perot Resonator
Permittivity: 25 - 330 GHz (Except 170-220 GHz)Free space
Permittivity, permeability, reflection transmission: 18 - 330 GHz(except 170-220 GHz) Powders and liquids are also possible.
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Solution partner

The items listed are subject to change. Please confirm when placing an order.
© EM labs Inc.
Jun 2023