dielectric loss उदाहरण वाक्य

उदाहरण वाक्य

1. Good dielectric materials such as glass have extremely low DC conductivity, and at low frequencies the dielectric loss is also negligible, resulting in almost no absorption.
2. However, at higher frequencies ( such as visible light ), dielectric loss may increase absorption significantly, reducing the material's transparency to these frequencies.
3. However it is often found that the dielectric losses in FR4 are too high at microwave frequencies, and that the dielectric constant is not sufficiently tightly controlled.
4. In a real directional coupler, however, the insertion loss consists of a combination of coupling loss, dielectric loss, conductor loss, and VSWR loss.
5. Another source of resistance is dielectric losses from the penetration of radio waves into the ground near the antenna due to the large skin depth at low frequencies.
6. Dielectric loss is caused when the insulating material inside the transmission line absorbs energy from the alternating electric field and converts it to heat ( see dielectric heating ).
7. The dielectric losses increase in this order : Ideal dielectric ( no loss ), vacuum, air, polytetrafluoroethylene ( PTFE ), polyethylene foam, and solid polyethylene.
8. The charges may be separated by a considerable distance and therefore make contributions to the dielectric loss that are orders of magnitude larger than the response due to molecular fluctuations.
9. Once the complex permittivity of the material is known, we can easily calculate its effective conductivity \ sigma _ e and dielectric loss tangent \ tan \ delta as:
10. These are the terminal resistances, the contact resistance of the electrode contact, the line resistance of the electrodes, the electrolyte resistance, and the dielectric losses in the dielectric oxide layer.