Phase-Adjusted Microwave Oscillators Based on a Discriminator

Phase Noise in Microwave Oscillators and Amplifiers

Date The final copy of this thesis has been examined by the signatories, and we find that both the content and the form meet acceptable presentation standards of scholarly work in the above mentioned discipline. Phase Noise in Microwave Oscillators and Amplifiers Thesis directed by Professor Zoya Popovi´c This thesis presents analysis and measurements of phase noise in oscilla-tors and amplifie...

A GPS Phase-Locked Loop Performance Metric Based on the Phase Discriminator Output

We propose a novel GPS phase-lock loop (PLL) performance metric based on the standard deviation of tracking error (defined as the discriminator's estimate of the true phase error), and explain its advantages over the popular phase jitter metric using theory, numerical simulation, and experimental results. We derive an augmented GPS phase-lock loop (PLL) linear model, which includes the effect o...

Phase noise of whispering gallery photonic hyper-parametric microwave oscillators.

We report on the experimental study of phase noise properties of a high frequency photonic microwave oscillator based on four wave mixing in calcium fluoride whispering gallery mode resonators. Specifically, the oscillator generates approximately 8.5 GHz signals with -120 dBc/Hz at 100 kHz from the carrier. The floor of the phase noise is limited by the shot noise of the signal received at the ...

Microwave phase locking of Josephson-junction fluxon oscillators.

A photonic chip based frequency discriminator for a high performance microwave photonic link.

We report a high performance phase modulation direct detection microwave photonic link employing a photonic chip as a frequency discriminator. The photonic chip consists of five optical ring resonators (ORRs) which are fully programmable using thermo-optical tuning. In this discriminator a drop-port response of an ORR is cascaded with a through response of another ORR to yield a linear phase mo...