Near-field scanning can be used to determine the far-field emissions of electronic devices. In
general, this requires phase-resolved electric and magnetic near-field data. To capture a …

Three descriptors of antenna performance appropriate for ultrawide-band (UWB)
applications are proposed and described: energy pattern, correlated energy pattern, and …

According to the electromagnetic uniqueness theorem, the radiation behavior of an antenna
under test (AUT) can be recovered from measurements of two tangential components of its …

We have proposed a method for evaluating the free-space antenna factor of a log-periodic
dipole antenna (LPDA) with a time-domain technique. The proposed method is based on a …

The capability of the level set method is illustrated for shape and location reconstruction
using real measurement data in the range of 3-8 GHz. An experimental setup is utilized to …

Ultra wideband impulse radio (UWB-IR) technology is an ideal candidate for wireless
networks that can be utilized for short-range, high-speed, low power, and low cost indoor …

Ultra-wideband (UWB) communications technology increasingly plays an important role in
modern communications systems. The complex antenna transfer function (CATF) of a UWB …

In this paper, an improved folded long-hexagon antenna was introduced. The voltage
standing wave ratio (VSWR), the complex antenna factor, and the absolute gain for the …

Experimental characterization of UWB antennas can in many cases be performed using
traditional frequency-domain antenna measurements, combined with careful application of …

The time reversal (TR) technique is applied in a reverberation chamber (RC) to perform an
analysis of antenna efficiency. RC are mainly used for electromagnetic compatibility …