KEYCOM provides solutions in the 300 GHz to 1 μHz frequency range (SHF/EHF/MW/UHF/VHF/ULF).
We undertake designing, manufacturing and measuring. Please feel free to contact us.

Perturbation method
specimen-hole closed type, cavity resonance mode,
for ultra thin sheet
dielectric constant and dielectric loss tangent measurement system

Catalog No. dps18002031022-11

This is high precision perturbation measurement instrument that measures a specimen's dielectric constant (permittivity , εr) and dielectric loss tangent (tan δ) in the microwave region.
In accordance with the method prescribed by JIS standards (JISC2565 in 1992), "KEYCOM" has improved measurement accuracy by closing the hole into which the specimen is inserted with metal.

We released a more high precise improved version in January, 2005.

* High accurate measurement, εr' accuracy ±1%, tan δ accuracy ±3%.
* Ultra-thin films having thicknesses lenn than 0.1μm can be measured.
* Multi-layer film is measurable.
* solids, sheets, films, powders, liquids (oils, etc.), multilayer structures are measurable.
* simple operation.
* measurement range : 200 MHz - 20 GHz.

* Please feel free to contact us anything such as varying the temperature range of measurement.


Specifications

Measurable specimens

-layered structures
-powders-liquids
-RADOME covers
-dielectric resonators
-ferroelectric materials
-PWB films
-sheets
-wave absorbers
(Please note that only typical samples are listed here.
Please enquire about samples that are not listed above.)

Measurement frequency 200 MHz - 20 GHz (single point measurement)
Standard frequencies: 300 MHz, 1, 2.3, 5, 10 and 20 GHz
Instruments that perform measurements at other frequencies can be
ordered as a special order.

Measurable range of εr
(relative permittivity)

1-150 (for the case of the general measurement) 
Accuracy of εr ±1% at maximum
Measurable range of tanδ
(relative dielectric loss tangent)
Resolution: 5 × 10-6-0.1, accuracy ±3%
Temperature range Usual specification: room temperature
Special specifications: please inquire
Applied test equipment, etc. -Vector Network Analyzer, scalar network analyzer,
synthesized sweeper with receiver
-PC with Windows OS (with National Instrument GPIB)

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

Film All film samples can be measured (multi-layered structures can also be measured).
Size: 30 mm × 30 mm
Size will 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 1 mm or less
Length: 30 mm (±0.1mm)

Others Please inquire about other specifications.

Model No.

Name Specifications Model No.
Resonator operation equipment   COE-01
Resonator kit Resonator kit for approximately 1 GHz TMR-1A
*If the frequency you require is not listed,
please feel free to contact us.
Resonator kit for approximately 2 GHz TMR-2A
  Resonator kit for approximately 2.45 GHz TMR-2.45A
  Resonator kit for approximately 3 GHz TMR-3A
  Resonator kit for approximately 5 GHz TMR-5A
  Resonator kit for approximately 5.8 GHz TMR-5.8A
  Resonator kit for approximately 10 GHz TMR-10A
  Resonator kit for approximately 20 GHz TMR-20A
Perturbation method resonance mode measurement program   DMP-25
Calibration semi-rigid coaxial cable kit
(common to all resonators)
   
Coaxial cable assembly (1 m) 2 sets   CM06D-AA-1000
Temperature regulator
(room temperature to 200 degree)
  TCOV-04
GPIB cable   GP-01
Network Analyzer Can be purchased together with components listed above. Please enquire about details.  
PC with Windows OS and a printer Can be purchased together with components listed above. Please enquire about details.  

Data example (English version available)


Configurations

300MHz Resonator