التفاصيل البيبلوغرافية
العنوان: |
Experimental demonstration and operating principles of a multiferroic antenna. |
المؤلفون: |
Schneider, Joseph D., Domann, John P., Panduranga, M. K., Tiwari, Sidhant, Shirazi, Paymon, Yao, Zhi (Jackie), Sennott, Casey, Shahan, David, Selvin, Skyler, McKnight, Geoff, Wall, Walter, Candler, Robert N., Wang, Yuanxun Ethan, Carman, Gregory P. |
المصدر: |
Journal of Applied Physics; 12/14/2019, Vol. 126 Issue 22, p1-6, 6p, 1 Diagram, 5 Graphs |
مصطلحات موضوعية: |
ANTENNAS (Electronics), MAGNETIC flux, MAGNETIC fields, DEMAGNETIZATION, STRAIN gages, GALLIUM, MAGNETIZATION |
مستخلص: |
This paper experimentally demonstrates the operating principles of a near-field multiferroic antenna. The antenna uses a piezoelectric lead-zirconate-titanate stack to apply a time varying strain to a magnetoelastic iron gallium Fe80.77Ga19.23 (FeGa) rod. The voltage induced strain controls the net magnetization of the FeGa rod to generate oscillating magnetic fields in free space surrounding the antenna. Direct experimental measurements of the mechanical force, strain, magnetic field, and magnetic flux inside the FeGa rod were collected and show strong a correlation with the dynamic magnetic field measured in free space. Additionally, an analytical dipole model is used to demonstrate that the free space signal originates from the changing magnetization in the FeGa rod, providing a clear multiferroic antenna proof-of-concept demonstration. Finally, analysis is provided to highlight the importance of device geometry and demagnetization fields when optimizing the antenna response. [ABSTRACT FROM AUTHOR] |
|
Copyright of Journal of Applied Physics is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
قاعدة البيانات: |
Complementary Index |