Perturbation Method
Specimen-Hole Closed Type, Cylindrical Cavity Resonator
Dielectric Constant and Dielectric Loss Tangent Measurement System(Dk/Df)
[Powders, film, ultra-thin sheet, ultra-thin film, sheet, millimeter wave, high accuracy, Dk/Df, εr', tanδ]

Model No. DPS18

High accuracy allows measurement of films, powders, etc. Accurate measurement of ceramics in the low frequency band @ 200MHz is also possible!

KEYCOM’s high precision perturbation method enables you to measure dielectric constant (permittivity, εr) and dielectric loss tangent (tan δ) of such specimens as multi-layered structure, ultra-thin film or ferroelectric materials in the microwave region.
KEYCOM refined the conventional perturbation method that was JIS-standardized in 1992 (JISC2565) by closing the hole into which the specimen is inserted with metal, and the new method is also compliant with ASTMD2520.

* High accuracy : εr' ±1%, tan δ ±3%.
* Ultra-thin films (less than 0.1μm in thickness) - capable of measurement
* Multi-layer film(Vapor-deposited film) - capable of measurement
* Also ideal for solids, sheets, powders, liquids (oils, etc.)
* User-friendly operability.
* Measurement frequency range : 200 MHz - 10 GHz.

* Please contact your KEYCOM representative for other measurement temperatures than room temperature.

Conforming Standards

ASTMD2520, (JISC2565)

Measurable Samples

Powders, multilayers (vapor deposition films, etc.), printed circuit boards, films (ultra-thin films, ultra-thin sheets), radome covers, ceramics, resins (resins), etc.
*Only typical cases are listed. Please contact us if you have any questions about products other than the above.

Electric Field Direction

Perpendicular to the ground, longitudinal or transverse in the sample plane
⇒ Anisotropy in the sample plane can be checked

Specifications

Items	Details
Measurable samples	-Layered structures -Powders-liquids -Radome covers -Dielectric resonators -Ferroelectric materials -PWB films -Sheets -Wave absorbers (listed above are typical samples. Please contact KEYCOM representative for samples that are not listed.)
Measurement frequency	200MHz - 10GHz (single point measurement) Standard frequencies: 300 MHz, 1, 2, 2.45, 3, 5, 5.8, and 10GHz (Please request your desired frequencies for customization.)
Measurable range of εr (relative permittivity)	1-150　(generally, a measurable range of εr is decided by a volume of its tanδ), accuracy ±1%
Measurable range of tanδ (relative dielectric loss tangent)	0.0001-0.05 , accuracy ±3%
Temperature range	Room temperature Please contact your KEYCOM representative for other measurement temperatures than room temperature.

Items	Details
Resonator operation equipment	Weight: approx. 10 kg Height: approx. 320 mm Size of the base: 300 mmφ
1 GHz cavity	Weight: approx. 8 kg
5 GHz cavity	Weight: approx. 1.25 kg

Specimen shape

Items	Details
Film	All film samples can be measured (multi-layered structures can also be measured). Size: 30 mm(±0,1mm) × 30 mm Size may vary depending on the thickness of the film.
Rod-shaped	Diameter: 1-7 mm for cylinders or 2-3 mm for rods having a square cross-section (actual values depend on measuring frequency, see below) Ex. 1 GHz - a diameter of 10 mm or less 5 GHz - a diameter of 4 mm or less 10 GHz - a diameter 2mm or less Length: 30 mm(±0.1mm)
Liquid	10ml or more@1GHz
Powder	5ml or more@1GHz
Others	Please inquire about other specifications.

Order information

※Please inform us of Model No. or your testing requirements.

Model No.	Name	Description
COE-01	Mechanical Control System for Cavity
TMR-1A	Resonator kit *If the frequency you require is not listed, please feel free to contact us.	Resonator kit for approximately 1 GHz
TMR-2A		Resonator kit for approximately 2 GHz
TMR-2.45A		Resonator kit for approximately 2.45 GHz
TMR-3A		Resonator kit for approximately 3 GHz
TMR-5A		Resonator kit for approximately 5 GHz
TMR-5.8A		Resonator kit for approximately 5.8 GHz
TMR-10A		Resonator kit for approximately 10 GHz
DMP-1A-E	Resonator kit for liquid	Resonator kit for approximately 1GHz
DMP-10A-E	Resonator kit for liquid	Resonator kit for approximately 10GHz
DMP-25	Perturbation method resonance mode measurement software	for sheet measurement
CM06D-AA-1000	Coaxial cable assembly (1m)	We will offer suitable cables for measurement frequency (2 pcs needed).
TCOV-04	Thermostat chamber (room temperature - 200℃)	Please let us know measurement temperature.
VNA	Network analyzer	If you have a request, please be informed a suitable models from us.
PC	Windows PC	Can be purchased together with components listed above. Please inquire about details.
GP-01	GPIB interface	Can be purchased together with components listed above. Please inquire about details.