ASTM D 3380 Standard Test Method for Relative Permittivity (Dielectric Constant) and Dissipation Factor of Polymer-Based Microwave Circuit Substrates
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ASTM D 3380 Document Information:
Title
Standard Test Method for Relative Permittivity (Dielectric Constant) and Dissipation Factor of Polymer-Based Microwave Circuit Substrates
ASTM International
Publication Date:
Feb 23, 1990
Scope:
This test method permits the rapid measurement of apparent relative
permittivity and loss tangent
(dissipation factor) of metal-clad polymer-based circuit substrates in
the X-band (8 to 12.4 GHz).
This test method is suitable for testing PTFE (polytetrafluorethylene)
impregnated glass cloth or
random-oriented fiber mats, glass fiber-reinforced polystyrene,
polyphenyleneoxide, irradiated
polyethylene, and similar materials having a nominal specimen
thickness of 1.6 mm. The materials
are applicable to service at nominal frequency of 9.6 GHz.
NOTE 1 - See Appendix X1 for additional information about range of
permittivity, thickness other
than 1.6 mm, and tests at frequencies other than 9.6 GHz.
The values stated in inch-pound units are to be regarded as the
standard.
This standard does not purport to address all of the safety concerns,
if any, associated with its
use. It is the responsibility of the user of this standard to
establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use.
Keywords:
- dielectric constant
- dissipation
- loss tangent
- permittivity
- polymer-based substrates
- relative permittivity
- resonator
- stripline
- x-band
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