AIP Advances (Mar 2012)

Low-loss meta-atom for improved resonance response

  • Derrick Langley,
  • Ronald A. Coutu Jr.,
  • Peter J. Collins

DOI
https://doi.org/10.1063/1.3701709
Journal volume & issue
Vol. 2, no. 1
pp. 012196 – 012196-5

Abstract

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Measurements of a meta-atom integrated with a low noise amplifier into the split-ring resonator are presented. A comparison is made between baseline meta-atoms and one integrated with a GaAs low noise amplifier. S-parameter measurements in a RF strip-line show the resonant frequency location. The resonance null is more prominent for the integrated meta-atom. Biasing the low noise amplifier from 0 to 7 VDC showed that the resonant null improved with biasing voltage. As the biasing voltage increases, the transmission null reduced from -11.82 to -23.21 dB for biases from 0 to 7 VDC at resonant frequency.