TY - JOUR
T1 - Phase shifting holography for THz near-field/far-field prediction
AU - Junkin, Gary
PY - 2014/1/1
Y1 - 2014/1/1
N2 - With a view to extending techniques for THz antenna near-field/far-field prediction, this communication derives general analytic expressions for calibrated phase shifting holography (PSH) and introduces a new 120° three-step PSH method that avoids switching off the reference field and has symmetrical performance over the entire complex plane, providing spurious free far-field prediction. Numerical tests with simulated near-field patterns at 372GHz confirm the convenience of the method and give an indication of the precision required for the phase shifts.
AB - With a view to extending techniques for THz antenna near-field/far-field prediction, this communication derives general analytic expressions for calibrated phase shifting holography (PSH) and introduces a new 120° three-step PSH method that avoids switching off the reference field and has symmetrical performance over the entire complex plane, providing spurious free far-field prediction. Numerical tests with simulated near-field patterns at 372GHz confirm the convenience of the method and give an indication of the precision required for the phase shifts.
U2 - 10.2528/PIERL13093006
DO - 10.2528/PIERL13093006
M3 - Article
SN - 1937-6480
VL - 44
SP - 15
EP - 21
JO - Progress in Electromagnetics Research Letters
JF - Progress in Electromagnetics Research Letters
ER -