213 citations · 629 across the 12 of their papers we have counts for
6 papers · 1 filter
Residual AM and PM Noise of Selected X-Band Amplifiers
Archita Hati, Craig Nelson, Scott Littrell
In microwave systems design, amplitude modulation (AM) noise is often ignored relative to phase modulation (PM) noise. However, in high-performance applications requiring ultra-low…
Cross-spectrum noise measurements at 4 K to minimize power-splitter anti-correlation effect
Archita Hati, Craig W. Nelson, David Pappas +1
We report an accurate measurement of the phase noise of a thermally limited electronic oscillator at 300 K. By thermally limited we mean that the white signal-to-noise ratio of the…
Cross-spectrum Measurement of Thermal-noise Limited Oscillators
Archita Hati, Craig W. Nelson, David A. Howe
Cross-spectrum analysis is a commonly-used technique for the detection of phase and amplitude noise of a signal in the presence of interfering noise. It extracts the desired correl…
PM noise Measurement at W-Band
A. Hati, C. W. Nelson, D. A. Howe
We present improved performance for a 92 to 96 GHz cross-spectrum phase modulated (PM) noise measurement system reported. The system is principally designed to measure amplifiers i…
PM noise of a 40 GHz air-dielectric cavity oscillator
Archita Hati, Craig W. Nelson, B. Riddle +1
We describe the design of a low-phase-modulated (PM) noise, 40 GHz oscillator that uses a conventional air-dielectric cavity resonator as a frequency discriminator to improve the P…
Phase inversion and collapse of the cross-spectral function
Craig W. Nelson, Archita Hati, David A. Howe
Cross-spectral analysis is a mathematical tool for extracting the power spectral density of a correlated signal from two time series in the presence of uncorrelated interfering sig…