Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Donald C. DeGroot"'
Publikováno v:
IEEE Instrumentation & Measurement Magazine. 13:24-31
The demands on dielectric material measurements have increased over the years as electrical components have been miniaturized and device frequency bands have increased. Well-characterized dielectric measurements on thin materials are needed for circu
Publikováno v:
IEEE Transactions on Applied Superconductivity. 15:1000-1003
We present new frequency-dependent measurements of both the magnitude and phase of the nonlinear response in superconducting thin films at microwave frequencies obtained using a large-signal network analyzer. Our measurements show that the nonlinear
Publikováno v:
International Journal of RF and Microwave Computer-Aided Engineering. 13:357-369
We expand the definitions of power gain, transducer gain, and available gain by taking harmonic content into account. Furthermore, we show that under special conditions, these expanded definitions of gain can be expressed in terms of nonlinear large-
Publikováno v:
IEEE Transactions on Applied Superconductivity. 13:315-319
The origin of the detrimental nonlinear response in high T/sub c/ superconductor (HTS) microwave devices is currently not well understood. In order to help elucidate the origin of these nonlinear effects, we have developed a description of the nonlin
Publikováno v:
International Journal of RF and Microwave Computer-Aided Engineering. 12:3-24
This article describes how artificial neural networks (ANNs) can be used to benefit a number of RF and microwave measurement areas including vector network analysis (VNA). We apply ANNs to model a variety of on-wafer and coaxial VNA calibrations, inc
Publikováno v:
International Journal of RF and Microwave Computer‐Aided Engineering. 10:319-328
Autor:
Jeffrey A. Jargon, Mona Zaghloul, Mehmet Ozgur, V. Milanovic, Michael Gaitan, Donald C. DeGroot
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 46:632-640
This paper presents characteristics of microwave transmission in coplanar waveguides (CPW's) on silicon (Si) substrates fabricated through commercial CMOS foundries. Due to the CMOS fabrication, the metal strips of the CPW are encapsulated in thin fi
Autor:
Donald C. DeGroot, M.L. Chen, Q. Y. Ma, James A. Beall, James C. Booth, David A. Rudman, S.H. Hong, Ronald H. Ono, J.R. Miller
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 7:2780-2783
We report on the application of Si and Al ion-implantation patterning to the fabrication of low-loss microwave transmission lines in high-temperature superconductor (HTS) thin films. Using this technique, we have fabricated coplanar waveguide (CPW) t
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 5:2272-2275
To explore the electrical characteristics of monolithic microwave circuits with integrated high-temperature superconductor and ferroelectric materials, we fabricated a series of coplanar waveguide transmission lines in laser-deposited YBa/sub 2/Cu/su
Publikováno v:
IEEE Microwave and Wireless Components Letters. 11:196-198
We examine the effects of nonlinear diode junction capacitance on the fundamental premise of the nose-to-nose calibration, that the kickout pulse is identical in shape and duration to the impulse response of a sampling circuit. We offer a physical ex