Title :
Independently Tunable Annular Slot Antenna Resonant Frequencies Using Fluids
Author :
Murray, Casey ; Franklin, Rhonda R.
Author_Institution :
Univ. of Minnesota, Minneapolis, MN, USA
Abstract :
An annular slot antenna with surface integrated fluidic channels is presented. The fluidic channels provide independent, tunable control of the first and second resonant frequencies. Simulation and measurement results for channels filled with air, acetone, or deionized (DI) water are investigated. A tunable range from 3.3 to 4.2 GHz for the first resonance and 5.2 to 8 GHz for the second resonance is demonstrated. The loss tangent effects are also assessed for the fluids in terms of peak realized gain degradation.
Keywords :
channel flow; loop antennas; losses; slot antennas; deionized water; frequency 3.3 GHz to 4.2 GHz; frequency 5.2 GHz to 8 GHz; independently tunable annular slot antenna; loss tangent effect; resonant frequency; second resonance; surface integrated fluidic channel; Antenna measurements; Antenna radiation patterns; Fluids; Gain; Resonant frequency; Slot antennas; Fluidics; multifrequency antennas; slot antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2341232
