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.

Transmission Characteristics Measurement Service

Model No. SANT02


Content of measurement

・ Transmission characteristics
・ Reflection characteristic
・ Propagation delay characteristics
・ Characteristic Impedance


・Frequency : 10MHz~50GHz
・ Transmission line form : Strip line, Micro strip line etc

Equipment used

Vector network analyzer

The required one


Content Size The number of sheets that is necessary for one measurement Remarks
Board  250x250mm over        2 Please consult us when you cannot prepare it.


Item Remarks
Sample name Temporary is not cared about either. We will describe to the report.
Relative permittivity We measure it by the extra charge when not knowing.
Dielectric tangent We measure it by the extra charge when not knowing.
Thickness of the board  
Copper foil thickness  
Rolling copper foil or Electrolysis copper foil  


Measurement example

Example of transmission loss measurements

Example calculation of the attenuation constant substrate specimen samples