Phase shifting holography for THz near-field/far-field prediction

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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.
Idioma originalEnglish
Pàgines (de-a)15-21
RevistaProgress in Electromagnetics Research Letters
Estat de la publicacióPublicada - 1 de gen. 2014


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