In this paper, the superdirective property of arrays comprising a finite number of rectangular
grooves is studied by using the modal approach, which is a simple but powerful technique …

A theoretical scheme for studying the properties of localized, monochromatic, and highly
directive classical current distributions in two and three dimensions is formulated and …

An accurate description of typical finite-array behavior such as edge effects and array
resonances is essential in the design of various types of antennas. The analysis approach …

Resonant behavior in a finite array that appears as (modulated) impedance or current-
amplitude oscillations may limit the array bandwidth substantially. Therefore, simulations …

We give numerical evidence of a kind of resonance that appears in infinite perfectly
conducting gratings comprising a finite number of grooves in each period when illuminated …

In this paper, we discuss the influence of a resonance on estimating direction of arrival
(DOA) with a circular dipole array in a borehole (CAB). The resonance is caused by the …

The phenomenon of resonances in large circular arrays of electrically short and thick dipoles
was studied intensively in the nineties by Harvard's Antenna Group, led by RWP King and …

We study the phase resonances in metallic compound gratings. The diffraction problem is
solved by means of the modal method and the surface impedance boundary condition. The …

Uniform circular arrays (UCAs) provide both omnidirectional (360°) and directive (sector)
coverage of the azimuthal plane. Superdirective versions with unidirectional, high front-to …

A circular array of a large number of electrically short vertical dipoles of which only two are
driven is described and analysed. The relevant parameters include the length and radius of …