On the review of magnetic metamaterials CRLH impedance transformers: Design and analysis | ||||
| Journal of Engineering Science and Military Technologies | ||||
| Article 1, Volume 6, Issue 1, March 2022, Page 1-21 PDF (1.34 MB) | ||||
| Document Type: Review articles | ||||
| DOI: 10.21608/ejmtc.2022.167103.1233 | ||||
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| Authors | ||||
Mahmoud A Abdalla   1; Zhirun Hu2
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| 1Military Technical College | ||||
| 2School of Electrical Engineering, Manchester University, Manchester, UK | ||||
| Abstract | ||||
| The trend of using metamaterials in designing microwave components and antennas has played a great role in the past two decades. One of these trends was the use of composite right/left-handed artificial transmission lines for these components. On the other hand, the development of tunable microwave components is one of the permanent demands in the electromagnetic designer community. Mixing the advantages of metamaterials with magnetic tunable components has opened a new window for the development of good components. This paper reviews different designs for tunable metamaterial-based microwave impedance transformers. The designs illustrate different functionalities based on the unique properties of the metamaterial composite/right-left-handed transmission lines. The designs are supported by detailed theory and mathematical modeling. The advantage of the presented devices is their combined properties of compactness and nonreciprocity. Furthermore, the devices require very low external DC magnetic bias due to their much lower demagnetization compared to the microstrip configuration. | ||||
| Keywords | ||||
| CRLH; microwave impedance transformer; tunable components | ||||
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