Dielectric resonator antenna phased array with liquid crystal based phase shifters
- 1 April 2014
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 21643342,p. 2436-2439
- https://doi.org/10.1109/eucap.2014.6902310
Abstract
The work presents for the first time a combination of liquid crystal phase shifter technology and dielectric resonator antenna, in an array configuration. The electromagnetic energy is coupled into the rectangular dielectric resonator from the slots in the ground plane which is then radiated from the top face of the dielectric resonator antennas. The antenna consists of 4×1 dielectric resonators as radiating elements, which have been constructed from bulk-glass ceramic material with permittivity of ϵ r =22 and tanδ=0.005. The phase shifters are implemented in inverted microstrip line topology by filling liquid crystal between two borosilicate glass substrates (ϵ r =2.4, tan<;5=0.006). Reflection loss data measured with network analyzer and radiation characteristics for different beam directions measured in anechoic chamber are presented and discussed here.Keywords
This publication has 7 references indexed in Scilit:
- A 2-D Electronically Steered Phased-Array Antenna With 2$\,\times\,$2 Elements in LC Display TechnologyIEEE Transactions on Microwave Theory and Techniques, 2012
- Wide-Angle Scanning Phased Array With Pattern Reconfigurable ElementsIEEE Transactions on Antennas and Propagation, 2011
- Size-Reduction Method for Dielectric-Resonator AntennasIEEE Antennas and Propagation Magazine, 2011
- Ultra-Wide Suppression Band of Surface Waves Using Periodic Microstrip-Based StructuresIEEE Transactions on Microwave Theory and Techniques, 2008
- Comparison between planar arrays of perforated DRAs and microstrip patchesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Design of photonic band-gap substrates for surface waves suppressionPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Active phased array of dielectric resonator antennasPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002