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2013-11-19

Phase Shifting Holography for THz Near-Field/Far-Field Prediction

Gary Junkin

Professor Gary Junkin

Telecommunication and System Engineering Department

Universitat Autònoma de Barcelona

Spain

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Progress In Electromagnetics Research Letters, Vol. 44, 15-21, 2014

doi:10.2528/PIERL13093006

Abstract

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 120º 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.

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Gary Junkin, "Phase Shifting Holography for THz Near-Field/Far-Field Prediction," Progress In Electromagnetics Research Letters, Vol. 44, 15-21, 2014.
doi:10.2528/PIERL13093006

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