Randy L. Haupt

Abstract: This paper investigates the validity of applying PO to 6nd the currents induced on a nsistive strip by an incident plane wavc Prim in~e~tigations did not coneider PO aa a viable method. %or and Liepa obtained the currents induced in resistive strip by &ng the method of momenta (MOM)[l]. More recently, Ray and Mittra used the spectral iterakive technique to 6nd the -nrS in such ntrips[2]. In these two studies the atrip either had a uniform or a tapered resistivity. In thio study currents on strips having vations reSisrMtim were computed ming MOM and PO expresaom. The results indicate that PO provides simple, =curate upressiono for the current when the resistiviw on the strip haa a smooth taper with large valuea of reeistance at the edges.

TL;DR: This chapter contains sections titled: Optimizing Array Amplitude Tapersoptimizing Array Phase Tapers Optimizing Arrays with Complex Weighting optimizing Array Element Spacing Optimizing Conformal Arrays Optimizing Reconfigurable Apertures.

TL;DR: In this article, the authors describe the design, construction, and testing of an 8 element broadband array with photoconductive attenuators at each broadband monopole element, controlled by an IR LED and vary between on and off with a small reflection coefficient and small insertion loss.

TL;DR: Comparisons of adaptive nulling algorithms for digital beamforming (DBF) and non-DBF arrays show that these techniques can achieve desirable signal to interference ratios that are comparable, and as such, implementing techniques applicable to non- DBF array are more cost effective.

TL;DR: In this article, the authors investigated the mutual coupling in a wideband linear Vivaldi array and showed that the coupling effects between the elements distort the signal to some extent; however, for moderately wideband signals this array can provide reliable signal transmission/reception with minimal dispersion.