A 2D finite difference/Finite Element analysis of reconfigurable mm-wave circuits in the presence of Nematic Liquid Crystals

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

A robust 2-D formulation for the electrical characterization of Nematic Liquid Crystals (N-LCs) under DC biasing conditions for use in reconfigurable mm-wave circuits is proposed. The finite difference (FD) method is first implemented to solve Poisson's equation in the domain of interest in order to obtain the governing DC electric field, which affects the local properties of the anisotropic material. Then, the nonlinear Euler-Lagrange differential equation, governing the orientation of the directors, is solved using a FD scheme with relaxation. Once the N-LC layer is characterized, a vector Finite Element (FE) code is used to obtain the modal propagation characteristics of a guiding structure. Tunability of the N-LC at mm-wave frequencies is illustrated for the particular geometry under a low DC bias voltage.

Original languageEnglish
Title of host publication2013 7th European Conference on Antennas and Propagation, EuCAP 2013
Pages2356-2360
Number of pages5
Publication statusPublished - 2013
Event2013 7th European Conference on Antennas and Propagation, EuCAP 2013 - Gothenburg, Sweden
Duration: 8 Apr 201312 Apr 2013

Other

Other2013 7th European Conference on Antennas and Propagation, EuCAP 2013
CountrySweden
CityGothenburg
Period8/04/1312/04/13

Keywords

  • Nematic Liquid Crystals
  • Numerical Methods
  • Reconfigurable Materials

Fingerprint Dive into the research topics of 'A 2D finite difference/Finite Element analysis of reconfigurable mm-wave circuits in the presence of Nematic Liquid Crystals'. Together they form a unique fingerprint.

  • Cite this