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Modulation Rate Study in a Spin-Torque Oscillator-Based Wireless Communication System
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2015 (English)In: IEEE transactions on magnetics, ISSN 0018-9464, E-ISSN 1941-0069, Vol. 51, no 11, 1401304Article in journal (Refereed) PublishedText
Abstract [en]

We study a wireless communication system based on a magnetic tunnel junction spin-torque nano-oscillator (STNO) by employing amplitude-shift-keying modulation. By varying the pulse modulation frequency (f(m)) from 1 kHz to 2 MHz and distance (D) between the antenna from 25 to 150 cm, we show a maximum data rate of 6 Mb/s (at D = 25 cm and fm = 1 MHz), a limit imposed by our setup and noise generated by the STNO itself. We also report the average amplitude noise (S-delta a) and average white frequency noise (S-wh) of the wireless communication system and discuss their dependence on the distance between the antennas.

Place, publisher, year, edition, pages
IEEE Press, 2015. Vol. 51, no 11, 1401304
Keyword [en]
Amplitude-shift keying (ASK), modulation rate, spin-torque oscillators, wireless communication
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering Telecommunications
URN: urn:nbn:se:kth:diva-179170DOI: 10.1109/TMAG.2015.2438033ISI: 000364770500029ScopusID: 2-s2.0-84946229591OAI: diva2:882283
IEEE International Magnetics Conference (Intermag), MAY 11-15, 2015, Beijing, PEOPLES R CHINA

QC 20151214

Available from: 2015-12-14 Created: 2015-12-11 Last updated: 2015-12-15Bibliographically approved

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Åkerman, Johan
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