3D magnetic field computation of a permanent magnet by Yuejin Z., Guodong X.

By Yuejin Z., Guodong X.

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Back to the antenna). In reception such an antenna also has similarly interesting directional properties. An important class of low-dispersion antennas (for transient/broad-band radiation/reception) are referenced as impulse radiating antenna (IRAs) [27]. These can be (and are) designed to exhibit this 42 C. E. BAUM combined dipole behavior at low frequencies with pointing in the same direction as the high-frequency beam. This improves the directionality and modestly decreases the low-frequency roll-off frequency.

FELSEN AND V. GALDI measured from the plane. We first consider the aperture problem. a Radiation from aperture distributions We summarize here essential results from previous publications (Bastiaans, 1980; Einziger and Shapira, 1986; Maciel and Felsen, 1989; Steinberg et al, 1991). b Beam discretization The aperture field is to be parameterized in terms of Gaussian beam basis functions via the rigorous self-consistent Gabor series representation where represents the normalized Gaussian window With representing the wavenumber, this representation places the beams on a discretized phase-space lattice (Fig.

To better appreciate the above, imagine that one is performing a moment method (numerical) computation. The kernel (operator) is replaced by an N × N matrix from which we find the natural frequencies via with the natural modes subsequently numerically determined. 2) and observe that the are roots (zeros) of the linking the index as ( root of the eigenvalue). Assuming an incident plane wave as the current on the body is expanded as This is the simplest form of coupling coefficient termed class 1, and it contains the information concerning the incident field.

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