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Electro-optical anisotropy of liquid crystal for symmetric stub phase-shifter

SAYED MISSAOUI1,* , MOHSEN KADDOUR2

Affiliation

  1. Department of Physics, Faculty of Science of Tunisia, University of Tunis Elmanar 2092, Tunisia
  2. Department of Physics, Faculty of Science of sfax, University of Sfax, Tunisia

Abstract

In this paper, the design and experimental characterization of a tunable symmetric stub phase shifter in planar technology on electro-optical anisotropy liquid crystal are presented. A reshaped symmetric stub phase shifter structure with a liquid crystal cavity has been used in order to improve the device performance, miniaturization and increase phase of microwave. The proposed design is based on the combination of dielectric symmetric stub and nematic liquid crystals layer. Based on the simulation results, optimization of the geometries are curial for varying the phase of transmitted signal. To benefit from liquid crystal anisotropy and thus obtain agility, a bias voltage is applied. The simulated results of a symmetric stub phase-shifter are compared with measured data, and good agreement is obtained..

Keywords

Liquid Crystals, Optical Anisotropy, Symmetric Stub, Phase-Shifter, Tunable Devices, Planar Technology.

Citation

SAYED MISSAOUI, MOHSEN KADDOUR, Electro-optical anisotropy of liquid crystal for symmetric stub phase-shifter, Optoelectronics and Advanced Materials - Rapid Communications, 12, 1-2, January-February 2018, pp.8-12 (2018).

Submitted at: Feb. 16, 2017

Accepted at: Feb. 12, 2018