| Autor: |
Mitrofanov, Alexander A., Safin, Ansar R., Udalov, Nikolay N., Kapranov, Mikhail V. |
| Předmět: |
|
| Zdroj: |
Journal of Applied Physics; 2017, Vol. 122 Issue 12, p123903-1-123903-5, 5p, 1 Diagram, 3 Graphs |
| Abstrakt: |
In this paper, we propose an approximate nonlinear theory of a phase-locked loop (PLL) of the spin torque nano-oscillator (STNO). We study the nonlinear dynamics of a filterless PLL generating microwave oscillations in a broad range of frequencies under the spin-polarized electrical current and external magnetic field. We consider the bifurcation analysis caused by a change in the frequency detuning of synchronized oscillations. We determine the bands of phase locking and quasi-synchronism, which basically distinguish STNOs from other types of microwave oscillators. Finally, we study the amplitude and phase noises of isochronous and nonisochronous STNO-based PLLs and compare them to the analogous characteristics of an autonomous oscillator. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
