Self-biased nonreciprocal microstrip phase shifter on magnetic nanowired substrate suitable for gyrator applications
(2012) IEEE Transactions on Microwave Theory and Techniques — Vol. 60, n° 7, p. 2152-2157 (2012)
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- Authors
- Abstract
- Magnetic nanowired substrates (MNWS) have been used for the fabrication of a planar nonreciprocal microstrip device. It shows a differential phase shift of 300 degrees${cdot}$ cm$^{-1}$ at $Ka$ -band without requiring the application of a dc bias magnetic field, and making it suitable for miniaturized gyrator applications. The nonreciprocal operation is achieved by loading the device with nanowires of different ferromagnetic materials. This allows to control the phase velocity of the microwave signal passing through the device by virtue of the spatial variation of the MNWS permeability. The measured microwave performances of the device have been reproduced with excellent accuracy using a proposed analytical model based on an effective medium theory and useful for the prediction of further tunable capabilities.
- Affiliations
Citations
Hamoir, G., De La Torre Medina, J., Piraux, L., & Huynen, I. (2012). Self-biased nonreciprocal microstrip phase shifter on magnetic nanowired substrate suitable for gyrator applications. IEEE Transactions on Microwave Theory and Techniques, 60(7), 2152-2157. https://doi.org/10.1109/TMTT.2012.2195016 (Original work published 2012)