Results 241 to 250 of about 1,430,925 (278)

On Peculiarities of $S$-Parameter Measurements

IEEE Transactions on Instrumentation and Measurement, 2005
Extracting quantities, such as the propagation factor or the characteristic impedance of a transmission line based on measured S-parameters, can be more involved than expected. Experience teaches that even if the S-parameter measurements look smooth and are of good quality, the derived quantities can contain large spikes that tend to grow when ...
Rolain, Yves   +3 more
openaire   +3 more sources

Measurement technique for the extraction of differential S-parameters from single-ended S-parameters

27th International Spring Seminar on Electronics Technology: Meeting the Challenges of Electronics Technology Progress, 2004., 2005
With the increasing implementation of communication devices and systems in the RF/low microwave ranges, along with the usage of differential signaling schemes, it has become necessary to develop practical methods to suitably characterize the operation of these devices. This paper describes a method of determining the four-port differential S-parameters
K. Vaz, M. Caggiano
openaire   +1 more source

Increasing S Parameter of Interleavers

2007 International Symposium on Signals, Circuits and Systems, 2007
An algorithm to increase the S parameter up to a value allowed by the reasonable generating of a S -random interleaver is presented. The method is appropriate for both random and determinist interleavers, as Welch-Costas, Takeshita-Costello or the one given by the UMTS standard.
Lucian Trifina   +2 more
openaire   +1 more source

INDO/S parameters for gold

International Journal of Quantum Chemistry, 2001
AbstractTwo INDO/S parameter sets, designed for use in conjunction with 6s and 6s+6p+5d basis sets, have been determined for gold. These basis sets are comprised of Slater‐type orbitals with exponents chosen to best reproduce the radial expectation values r, r2, and r3 of the gold Hartree–Fock atomic orbitals.
Warwick A. Shapley   +2 more
openaire   +1 more source

S parameters: a practical education

IEEE Transactions on Education, 1989
The course on radiofrequency amplifier design by the technique of S-parameters offered at Virginia Polytechnic Institute and State University is described with some emphasis on the associated laboratory portion of the course. The course begins with microstrip amplifier construction and the modeling of both lumped and distributed circuit elements ...
W.A. Davis, W.P. Overstreet
openaire   +1 more source

Nonlinear S-Parameters Inversion for Stroke Imaging

IEEE Transactions on Microwave Theory and Techniques, 2021
Stroke identification by means of microwave tomography requires a very accurate reconstruction of the dielectric properties inside patient’s head. This is possible when a precise measurement system is combined with a full nonlinear inversion method. In this article, the inversion of S-parameter data collected in a metallic chamber is performed with a ...
Alessandro Fedeli   +5 more
openaire   +1 more source

Scattering (S−) Parameters

2018
S-parameters are another means for describing multi-port networks. The scattering matrix ties port reflected/transmitted waves to incident ones. The waves have units of square root of power and have direct relations to terminal voltages and current.
openaire   +1 more source

S-parameters utilization in electrical quadrupoles analysis

2017 9th International Conference on Electronics, Computers and Artificial Intelligence (ECAI), 2017
This study, using the theory of electric circuits, shows the right definition of scattering parameters (S-parameters) for any two-port electric circuit and the practical way to use these parameters in streamline the processes of information transmission and propagation, and the transfer of the active power from the electric quadrupole input (output) to
Ciprian Curteanu   +4 more
openaire   +1 more source

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