Field-containing inductors are required in certain simulator applications e.g., elements of pulse shaping networks, terminators for transmission lines etc. Typical coils such as solenoids have a large magnetic dipole moment resulting in excessive interfering magnetic fields. An improved design based on the traditional toroidal coil windings is presented. This new design consisting of two windings is capable of higher voltage operation. Optimal shapes, energy and forces exerted are also discussed. The normalized plots of attainable inductance for varying geometrical parameters presented in this note should prove useful in future designs and applications.

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