Loop-to-Loop Coupling

Technical Report · Tue May 01 00:00:00 EDT 2012

DOI:https://doi.org/10.2172/1044957· OSTI ID:1044957

Warne, Larry Kevin ^[1]; Basilio, Lorena Ii ^[1]; Langston, William L. ^[1]; Salazar, Robert Austin ^[1]; Coleman, Phillip Dale ^[1]; Lucero, Larry Martin ^[1]; Bacon, Larry Donald ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

This report estimates inductively-coupled energy to a low-impedance load in a loop-to-loop arrangement. Both analytical models and full-wave numerical simulations are used and the resulting fields, coupled powers and energies are compared. The energies are simply estimated from the coupled powers through approximations to the energy theorem. The transmitter loop is taken to be either a circular geometry or a rectangular-loop (stripline-type) geometry that was used in an experimental setup. Simple magnetic field models are constructed and used to estimate the mutual inductance to the receiving loop, which is taken to be circular with one or several turns. Circuit elements are estimated and used to determine the coupled current and power (an equivalent antenna picture is also given). These results are compared to an electromagnetic simulation of the transmitter geometry. Simple approximate relations are also given to estimate coupled energy from the power. The effect of additional loads in the form of attached leads, forming transmission lines, are considered. The results are summarized in a set of susceptibility-type curves. Finally, we also consider drives to the cables themselves and the resulting common-to-differential mode currents in the load.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1044957
• Report Number(s): SAND--2012-3733
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
ANTENNAS
APPROXIMATIONS
CABLES
GEOMETRY
INDUCTANCE
MAGNETIC FIELDS
POWER TRANSMISSION LINES
SIMULATION