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- Publications
- Influence
Nonlinear analysis of phase relationships in quasi-optical oscillator arrays
- R. York
- Mathematics
- 1 October 1993
A dynamic theory of coupled oscillators is developed and applied to the class of loosely coupled quasi-optical oscillator arrays. This theory permits the calculation of stable, steady-state phase… Expand
Oscillator array dynamics with broadband N-port coupling networks
- R. York, P. Liao, J. J. Lynch
- Engineering
- 1 November 1994
This paper considers the analysis of an oscillator array with an arbitrary coupling network, described in terms of N-port circuit parameters. A Kurokawa analysis is used to transform the frequency… Expand
Phase noise in coupled oscillators: theory and experiment
- Heng-Chia Chang, Xudong Cao, U. Mishra, R. York
- Physics
- 1 May 1997
Phase noise in mutually synchronized oscillator systems is analyzed for arbitrary coupling and injection-locking topologies, neglecting amplitude noise, and amplitude modulation (AM) to phase… Expand
A new phase-shifterless beam-scanning technique using arrays of coupled oscillators
A method for electronic beam scanning in linear arrays of antenna-coupled oscillators is introduced which eliminates the need for phase shifters. It is shown that a constant phase progression can be… Expand
Distributed analog phase shifters with low insertion loss
- A. S. Nagra, R. York
- Engineering
- 1 September 1999
This paper describes the design and fabrication of distributed analog phase-shifter circuits. The phase shifters consist of coplanar-waveguide (CPW) lines that are periodically loaded with varactor… Expand
Injection- and phase-locking techniques for beam control [antenna arrays]
Applications of millimeter-wave radar, imaging, and communication technology requires cost-effective implementation of intelligent scanning antenna systems. Injection-locking and phase-locked-loop… Expand
Toxic Alexandrium peruvianum (Balech and de Mendiola) Balech and Tangen in Narragansett Bay, Rhode Island (USA)
- David G. Borkman, T. Smayda, C. Tomas, R. York, W. Strangman, J. C. Wright
- Biology
- 1 September 2012
Abstract Phytoplankton monitoring in Wickford Cove, Rhode Island, US (41°34′10.13″N, 71°26′45.76″W), located in Narragansett Bay, detected an unusual species of Alexandrium in the spring of 2009.… Expand
FDTD analysis of wave propagation in nonlinear absorbing and gain media
- A. S. Nagra, R. York
- Physics
- 1 March 1998
An explicit finite-difference time-domain (FDTD) scheme for wave propagation in certain kinds of nonlinear media such as saturable absorbers and gain layers in lasers is proposed here. This scheme is… Expand
A 60-watt X-band spatially combined solid-state amplifier
- N. Cheng, Thai-Phuong Dao, M. Case, D. Rensch, R. York
- Engineering
- IMS
- 13 June 1999
In this paper, we present new results in the development of a broad-band spatial power-combining system implemented in a standard X-band waveguide environment. Using 24 off-the-shelf GaAs… Expand
High tunability barium strontium titanate thin films for rf circuit applications
- Nadia K. Pervez, P. Hansen, R. York
- Physics
- 8 November 2004
Large variations in the permittivity of rf magnetron sputtered thin-film barium strontium titanate have been obtained through optimization of growth conditions for maximum dielectric strength and… Expand