Low-pass RC filter modified by liquid crystal exhibiting one Debye relaxation : theoretical approach

• Autorzy: Perkowski Paweł J.

Identyfikatory

DOI

10.24425/opelre.2022.141949

• Języki publikacji: EN

Abstrakty

EN

The solid dielectrics used in the capacitors exhibit rather high-frequency relaxations. This means that in the radio-frequency range, the capacitors exhibit a constant capacity. When liquid crystal is put into the capacitors, it is observed that in the radio-frequency range the capacity changes (decreases with frequency). This is due to the fact that liquid crystals exhibit relaxation in the radio-frequency range. In this paper, the formulas for the electricresponse of a low-frequency RC filter with liquid crystal characterized by complex electric permittivity are derived. One Debye-type relaxation is assumed in the calculations. The influence of strengths and relaxation time (frequency) of relaxation mode in liquid crystalon the electric response of low-frequency filters is discussed.

Słowa kluczowe

EN

liquid crystal; impedance; low-frequency filter; dielectric relaxation; permittivity

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2022
• Tom: Vol. 30, No. 3
• Strony: art. no. e141949
• Opis fizyczny: Bibliogr. 18 poz., rys., wykr.

Twórcy

autor

Perkowski Paweł J.

• Institute of Applied Physics, Military University of Technology, 2 gen. Kaliskiego St., 00-908 Warsaw, Poland

• https://orcid.org/0000-0001-7960-2191

Bibliografia

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Uwagi

This work was sponsored by Military University of Technology grant no. UGB 22-793 (funds for 2022).