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A novel combined-design of an antenna-filter RF with optical anisotropy of nematic liquid crystal for UWB applications

SAYED MISSAOUI1,2,* , MOHSEN KADDOUR3

Affiliation

  1. LR99ES16 Physics Laboratory of Soft Matter and Electromagnetic Modeling, University of Tunis Elmanar, Faculty of Science of Tunisia, 2092, Tunisia
  2. UR16ES03 Rersearch Unit Advanced Materials and Nanotechnologies, University of Kairouan, Higher Institute of Applied Sciences and Technology of Kasserine, Department of Technology, Tunisia
  3. University of Sfax, Faculty of Science of sfax, Department of Physics, Tunisia

Abstract

We propose and demonstrate novel reconfigurable combined design (co-design) of an antenna-filter radio frequency (RF) with optical anisotropy of nematic liquid crystal (NLC). The basic co-antenna-filter is designed using microstrip interdigital coupled lines at the middle of the common ground plane. For these devices, reconfigurable Ultra-Wide Band (UWB) co-design has gained tremendous research interest for many different applications, cellular radio system, radar system and satellite communications. A reshaped structure with a NLC cavity has been used in order to improve the device performance, miniaturization and defined as its capacity to change the fundamental properties. Liquid Crystal (LC) decrease the return loss and VSWR of the co-design antenna-filter and 44% frequency agility is obtained..

Keywords

Nematic Liquid Crystals, Optical Anisotropy, UWB-Antenna, M icrowave Filter, Reconfigurable design.

Citation

SAYED MISSAOUI, MOHSEN KADDOUR, A novel combined-design of an antenna-filter RF with optical anisotropy of nematic liquid crystal for UWB applications, Optoelectronics and Advanced Materials - Rapid Communications, 13, 3-4, March-April 2019, pp.209-216 (2019).

Submitted at: June 10, 2018

Accepted at: April 8, 2019