Phase Noise Characteristics of MSW Devices

Abstract

The phase noise characteristics of Magnetostatic Wave (MSW) delay lines, resonators and oscillators were investigated using doped and pure YIG films. Both l/f and white noise spectral densities were observed in passive MSW devices. It was also noticed that the white noise spectral density was a function of the incident power to the device and YIG linewidth; decreasing for lower incident power and higher linewidth YIG films. The phase noise measurement configurations will be discussed in detail, together with the results obtained. A simple explanation of the power and linewidth dependence of the white noise floor will be given.