This article presents a portable system for freehand antenna diagnosis and characterization based on amplitude-only data. The samples are acquired by moving handheld probe, which is tracked motion capture system, in front of the under test (AUT) aperture. measurements processed using phaseless sources reconstruction method to compute an equivalent current distribution AUT Finally, radiation pat...

[no abstract available]

Data Grids are increasingly popular in novel, demanding and dataintensive eScience applications. In these applications, vast amounts of data, generated by specialized instruments, need to be collaboratively accessed, processed and analyzed by a large number of users spread across several organizations. The nearly unlimited storage capabilities of Data Grids allow these data to be replicated at ...