Nonreciprocal microwave devices based on magnetic nanowires

Authors

Bijoy K. Kuanr, University of Colorado at Colorado Springs
V. Veerakumar, University of Colorado at Colorado Springs
Ryan Marson, University of Memphis
Sanjay R. Mishra, University of Memphis
R. E. Camley, University of Colorado at Colorado SpringsFollow
Z. Celinski, University of Colorado at Colorado SpringsFollow

Abstract

We use magnetic nanowires in an alumina matrix as the active element in microwave nonreciprocal resonance isolators. The design is related to waveguide E -plane isolators but is planar and much smaller than typical waveguide isolators. There is a nonreciprocal attenuation of the wave in forward and reverse directions. The isolation is about 6 dB/cm at 23 GHz. The bandwidth of the device is relatively large (5-7 GHz) in comparison to ferrite-based devices. The central frequency of the device can be tuned with the application of magnetic field. © 2009 American Institute of Physics.

Publication Title

Applied Physics Letters

Recommended Citation

Kuanr, B., Veerakumar, V., Marson, R., Mishra, S., Camley, R., & Celinski, Z. (2009). Nonreciprocal microwave devices based on magnetic nanowires. Applied Physics Letters, 94 (20) https://doi.org/10.1063/1.3124657