Load response of terminated transmission lines exposed to external electromagnetic fields

Terminal Response of Twisted-Wire Pairs Excited by Nonuniform Electromagnetic Fields

“…The present work closely parallels that in [8], where straight-wire lines were examined. Here, the study is devoted to twisted-wire pairs excited by nonuniform external fields.…”

“…The first component of the position vectors in both (1) and (2) is shifted by b/2 in order to make direct comparisons with results from [8]. For future convenience, the unit vectors tangent to the bifilar wire filaments are readily found to be…”

“…For this, as in [8], the field in the far region of an elementary electric dipole is considered first. As in [8], in order to account for the worst-case scenario, the dipole is oriented parallel to the line axis. Then, the electric field exciting the line is given by…”

“…Taking a step further from [8], the field radiated by a microstrip patch antenna is also examined here. The field expressions at the far-field region of a patch antenna parallel to the y-z plane can be expressed as [12,13] …”

“…Here, the study is devoted to twisted-wire pairs excited by nonuniform external fields. As in [8], the field generated by an elemental electric dipole is considered first. Taking a step further, the field by a patch antenna is also examined here, as patch antennas and arrays are widely used nowadays in several applications (e.g., GPS portable devices, mobile handsets and WLAN cards).…”