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Presentation and application of tunable reciprocal/nonreciprocal metamaterial transmission line based on edge-guided mode
Ghalibafan, J ; Sharif University of Technology | 2013
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- Type of Document: Article
- DOI: 10.1080/02726343.2013.769407
- Publisher: 2013
- Abstract:
- This article proposes a tunable composite right-/left-handed transmission line consisting of a transversely magnetized ferrite substrate periodically loaded by microstrip inductors. The gapless transition between the left- and right-handed bands (balanced response) is the main characteristic of this structure. This composite right-/left-handed transmission line is proposed in both reciprocal and nonreciprocal versions. Based on periodic structure analysis, the dispersion relation is estimated theoretically and validated numerically by the finite-element method in the reciprocal case. Theoretical and numerical results demonstrate the tunability of the proposed structures by changing the DC bias magnetic field applied to the ferrite. To demonstrate the applicability of the proposed structure, a tunable nonreciprocal phase shifter is designed. Copyright © 2013 Taylor and Francis Group, LLC
- Keywords:
- Magnetized ferrite substrate ; Tunable metamaterial ; Tunable phase shifter ; Dispersion relations ; Left-handed transmission line ; Magnetized ferrite substrates ; Metamaterial transmission lines ; Numerical results ; Tunable composites ; Tunable metamaterials ; Tunable phase shifters ; Dispersions ; Finite element method ; Metamaterials ; Phase shifters ; Transmission line theory ; Electric lines
- Source: Electromagnetics ; Volume 33, Issue 3 , Mar , 2013 , Pages 234-248 ; 02726343 (ISSN)
- URL: http://www.tandfonline.com/doi/abs/10.1080/02726343.2013.769407