Title :
Liquid crystal tunable microstrip patch antenna
Author :
Liu, L. ; Langley, Richard J.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Sheffield, Sheffield
Abstract :
A microstrip patch antenna operating in the 5 GHz range and tuned by liquid crystal (LC) is described. The simulated tuning range is 8 while the measurements showed a range of 4. Losses in the commercially available LC material at these frequencies give rise to antenna efficiencies ranging from 35 40 at best and falling to around 20 when the LC is in the unbiased state.
Keywords :
liquid crystal devices; microstrip antennas; microwave antennas; LC material; frequency 5 GHz; liquid crystal tunable microstrip patch antenna; unbiased state;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20081995
