Characterization of dielectric and magnetic properties of liquid crystals at hyperfrequencies
Abstract
The dielectric and magnetic properties of liquid crystals were studied for the following applications: electromagnetic hyperfrequent wave visualization for various cases of guided wave propagation and establishment of practical visualization devices with emphasis on the most suitable support for liquid crystals. Cholesteryl pelargonate, cholesteryl propionate, and cholesteryl oleate were found to be the most promising liquid crystal material. The properties of these compounds were studied and the following hyperfrequent devices were investigated: guided transmission lines and microwaves, unidirectional devices, and antennas. It was concluded that the liquid crystal method has reached the industrial development stage.
- Publication:
-
Final Report Lignes Telegraphiques et Telephoniques
- Pub Date:
- March 1975
- Bibcode:
- 1975lttc.reptR....C
- Keywords:
-
- Dielectric Properties;
- Display Devices;
- Liquid Crystals;
- Cholesterol;
- Crystallography;
- Esters;
- Oleic Acid;
- Propionic Acid;
- Superhigh Frequencies;
- Waveguides;
- Electronics and Electrical Engineering