Scattering from periodic arrays of crossed dipoles

Study and Design of a Differentially-Fed Tapered Slot Antenna Array

“…The behavior of these anomalies with frequency and scan angle are rather similar to the impedance perturbation presented in this paper. In [24] a similar impedance anomaly for a planar array of symmetrical crossed dipoles has been identified and analyzed rigorously for the fields that are incident from grazing angle (in the E-plane). However, the polarization of the incident Efield vector is not the same as in the present work, where the array grid has been oriented perpendicular to the E-plane scans.…”

Measurement of surface impedance of microwave circuit elements with single-tuned reflection

“…7, the four types of FSSs, that is, FSS using the same dimension of the loading dipole elements in the above reference and FSSs with f r of 3.2, 3.7, and 10.3 GHz with the dimensions determined by the design theory in Ref. 8, are used. The dipole arrays are fabricated by attaching the copper sheet with desired dimensions on Styrofoam (with dimensions of 60 cm u 60 cm u 3 cm) to construct a conducting reflector.…”

“…On the other hand, for the FSS, a theoretical value is given for the complex reflection coefficient if the shape is simple [7,8] in the case where the loading elements to fabricate an affray are dipoles or cross dipoles. The surface impedance can be obtained from these measured values.…”

Scattering from frequency selective surfaces: A continuity condition for entire domain basis functions and an improved set of basis functions for crossed dipoles

“…Actually, this geometry also occurs in the paper of Pelton and Munk [14], and they have included measured data, which we use for comparison in our calculations.…”

“…Secondly, the resonance at f 2 arises through an asymmetric resonance in right-angle V-dipoles [14]. The surface current density that gives the rst resonance at f 1 is accurately approximated by even (symmetric) dipole basis functions, i.e., sine functions.…”