Title :
Realization of 35 GHz Steerable Reflectarray using Highly Anisotropic Liquid Crystal
Author :
Marin, R. ; Mössinger, A. ; Freese, J. ; Manabe, A. ; Jakoby, R.
Author_Institution :
T.U. Darmstadt
Abstract :
This paper investigates the realization of reconfigurable reflectarrays based on tunable liquid crystals (LC). Two different concepts of unit cells using highly anisotropic LC have been designed and measured, showing good results and the possibility of employing them in a full-scale reflectarray. A 16 times 16 fixed beam microstrip reflectarray has been developed and measured, in order to verify the feeding concept. Good agreement is obtained between simulation and measurement
Keywords :
liquid crystals; microstrip antenna arrays; millimetre wave antenna arrays; reflector antenna feeds; 35 GHz; anisotropic liquid crystal; feeding concept; fixed beam microstrip reflectarray; reconfigurable reflectarrays; steerable reflectarray; tunable liquid crystals; Anisotropic magnetoresistance; Apertures; Dielectric loss measurement; Liquid crystals; Microstrip antenna arrays; Microstrip antennas; Optical reflection; Permittivity; Phased arrays; Reflector antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1711584
