DPS50 is a resonance method, strip line type dielectric constant and dielectric loss tangent measurement system optimized for sheet materials with dielectric constant of approximately 1 to 40 and relatively small dielectric loss in the frequency range of 800 MHz to 14GHz.
This system is compliant with the ASTMD3380 standard method of test for permittivity (dielectric constant) and dissipation factor of plastic-based Microwave circuit substrates, and IPC-TM-650 2. 5. 5. 5. 1 strip line test for complex relative permittivity of circuit board materials to 14GHz.
The measurement technique was announced at 2008 IEEE I2MTC.
IEEE 2008 I2MTC Victoria Canada, paper#1569085274,Tue_20 12-15 May 2008
Place a sample on 2 different PCB resonators and overlay the metal lid on each to apply pressure, and take measurements twice.
This method will
1.eliminate the fringing effect
2.eliminate conductor loss of resonator
3.eliminate the necessity for creating resonance pattern
4.generate an electric field perpendicular to the sample sheet
ASTMD3380, IPC-TM-650 2. 5. 5. 5. 1
Dielectric materials for printed circuit boards.
Perpendicular to the ground, in the direction of the sample thickness
⇒ Combined with other planar measurement methods, it is possible to confirm anisotropy in the thickness and planar directions
