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Time-varying transistor-based metamaterial for tunability, mixing, and efficient phase conjugation

Publication ,  Journal Article
Katko, AR; Barrett, JP; Cummer, SA
Published in: Journal of Applied Physics
April 14, 2014

We present a transistor-based microwave metamaterial exhibiting tunability over a wide range of time scales. By loading a metamaterial with a transistor, we show through theory and simulation that both the resonant frequency and quality factor of the metamaterial can be dynamically tuned with a voltage bias. We demonstrate through experiment that such a time-varying transistor-based metamaterial exhibits this tunability. The tunability is applicable to a wide range of time scales, from quasi-static effective parameter tuning to parametric pumping for mixing and phase conjugation. We then apply the metamaterial to a particular application of phase conjugation and demonstrate through simulation and experiment that a very strong phase conjugated signal is produced. We experimentally show that the mixing efficiency for a transistor metamaterial is over 30 dB stronger than that of a varactor-based phase conjugate metamaterial. © 2014 AIP Publishing LLC.

Duke Scholars

Published In

Journal of Applied Physics

DOI

EISSN

1089-7550

ISSN

0021-8979

Publication Date

April 14, 2014

Volume

115

Issue

14

Related Subject Headings

  • Applied Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Katko, A. R., Barrett, J. P., & Cummer, S. A. (2014). Time-varying transistor-based metamaterial for tunability, mixing, and efficient phase conjugation. Journal of Applied Physics, 115(14). https://doi.org/10.1063/1.4871195
Katko, A. R., J. P. Barrett, and S. A. Cummer. “Time-varying transistor-based metamaterial for tunability, mixing, and efficient phase conjugation.” Journal of Applied Physics 115, no. 14 (April 14, 2014). https://doi.org/10.1063/1.4871195.
Katko AR, Barrett JP, Cummer SA. Time-varying transistor-based metamaterial for tunability, mixing, and efficient phase conjugation. Journal of Applied Physics. 2014 Apr 14;115(14).
Katko, A. R., et al. “Time-varying transistor-based metamaterial for tunability, mixing, and efficient phase conjugation.” Journal of Applied Physics, vol. 115, no. 14, Apr. 2014. Scopus, doi:10.1063/1.4871195.
Katko AR, Barrett JP, Cummer SA. Time-varying transistor-based metamaterial for tunability, mixing, and efficient phase conjugation. Journal of Applied Physics. 2014 Apr 14;115(14).

Published In

Journal of Applied Physics

DOI

EISSN

1089-7550

ISSN

0021-8979

Publication Date

April 14, 2014

Volume

115

Issue

14

Related Subject Headings

  • Applied Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences