Magnonic crystal as a delay line for low-noise auto-oscillators
Abstract
It is demonstrated that a delay line based on a one-dimensional magnonic crystal used in a feedback loop of a microwave auto-oscillator can substantially reduce the phase noise figure and improve other vital performance characteristics of the auto-oscillator. The advantage is achieved due to the increase of the effective delay time in the magnonic crystal, compared to the case of an un-patterned yttrium iron garnet (YIG) film, and improvement of the power-handling characteristics due to the now possible increase of the YIG film thickness. The internal modes of a magnonic crystal caused by the periodic energy exchange between the incident and reflected spin waves play the dominant role in the described effect.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 21, 2015
- Source ID
- 10.1063/1.4931758
Entities
People
- Andrei N. Slavin
- Elena Bankowski
- Hong X Tang
- Roman S. Khymyn
- Thomas Meitzler
- Vasil Tiberkevich
Organizations
- Defense Advanced Research Projects Agency
- National Science Foundation
- Oakland University
- United States Army
- Yale University