A beamforming approach for phased arrays on vibrating apertures is proposed. The
essence is to dynamically calibrate the antenna element position errors due to aperture …

Flexible phased arrays potentially enable diverse applications not permitted by rigid
systems; however, they introduce ambiguity in antenna element positions. If this position …

This paper presents a novel architecture for real-time beam-forming of an antenna array on
a vibrating light-weight structure. The key technologies of this architecture are a real-time …

Design, fabrication, and test of a 25-element planar coupled oscillator based phased array is
described. The array operates at S-band and is shown to produce an agile beam which is …

Deployable phased-array antennas-antennas that are receiving great attention-have a
major problem in that they possess the possibility of an incomplete deployment and antenna …

Phased array antennas are increasingly used in modern radar systems. Such systems are
very liable to distortion of the relative phases between the radiating elements. For airborne …

This paper analyzes the causes of issues encountered by phased arrays when attempting to
scan to low angles. These issues include beam-width widening, gain reduction, increased …

One challenge in fielding large-scale phased array antennas is calibration of the antenna
system, so that RF radiated beams can be accurately formed and steered. Here, we describe …

In phased arrays the mainbeam is scanned by either varying the phase excitations of the
elements or varying the frequency of operation. In spite of their extensive use, these …

Wideband phased arrays present several challenges to the antenna designer. This article
addresses the principles of electronically scanned arrays applied to the selection of a …