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dielectric Definition

di·elec·tric (dī′i lek′trik)

noun

a material, as rubber, glass, etc., or a medium, as a vacuum, gas, etc., that does not conduct electricity but can sustain an electric field: dielectrics are used in capacitors, between adjacent wires in a cable, etc.

Etymology: di(a)- + electric: so called because it permits the passage of the lines of force of an electrostatic field but does not conduct the current

adjective

having the properties or function of a dielectric

dielectric Telecom Definition
A substance that is not a conductor of direct electric current, a dielectric is an insulator, rather than a conductor. A dielectric permits the passage of the lines of force associated with an electromagnetic field, but does not conduct the current. As dielectrics, however, can sustain an electromagnetic field, they are commonly used in capacitors and between wires in a cable. Dielectrics include rubber, gutta percha, wood pulp, polyethylene, polyvinyl chloride, flouropolymer resin, and Teflon
dielectric Usage Examples

Converse of object

  • use: The example uses the dielectric constant of water to model the solvent.
  • have: This material has a high dielectric constant, similar to a tumor.

Adjective modifier

  • relative: The relative bulk dielectric constant of the ink is ~14.
  • effective: For example, DPRO might define the effective dielectric constant in the center of a globular protein.
  • low: The crystals are proposed to have 20 % lower dielectric than water.
  • high: This material has a high dielectric constant, similar to a tumor.
  • ceramic: Ceramic capacitors are constructed of multiple parallel metal plates within a ceramic dielectric.
  • complex: This is a result of the complex dielectric constant which is a measure of the electrical properties of surface materials.

Modifies a noun

  • permittivity: The refractive index, n, is given by the square root of the relative dielectric permittivity, i.e. .
  • resonator: In many cases the high Q element can be realized by using a dielectric resonator.
  • grease: Cleaning the contacts with contact cleaner and then applying dielectric grease will work much better.
  • constant: To this end, the two dielectric constants may be given on input.
  • spectroscopy: Water levels in paper can potentially be measured by dielectric spectroscopy and all three techniques can be developed for use in-situ.
  • substrate: Furthermore, by using high dielectric constant substrates the slot antenna can be used at the various mobile communication bands.

Noun used with modifier

  • microwave: One such area of excellence is the Center for Physical Electronics and Materials ( PEM ), in the field of microwave dielectrics.
  • gate: Traps at the front and back gate dielectric interfaces, as well as traps in the body of the dielectric are considered.
  • field: Measurement Good Practice Guide No. 25 ( High field dielectric properties of piezoelectric materials ) Buy Online!
  • low-k: The interconnect capacitance is used as the optimization criteria of low-k dielectric process and the yield impact is reviewed for the concern of manufacturing.
  • polyethylene: Rolled Aluminum / Polyethylene, These capacitors use two long rectangular metal plates, separated by sheets of polyethylene dielectric.
  • loss: We now know that cold clean Antarctic ice behaves as a low loss dielectric over a wide range of radar frequencies.