Vol. 44

Front:[PDF file] Back:[PDF file]
Latest Volume
All Volumes
All Issues
2013-11-19

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

By Gary Junkin
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.

Citation


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
http://jpier.org/PIERL/pier.php?paper=13093006

References


    1. Junkin, G., T. Huang, and J. C. Bennett, "Holographic testing of terahertz antennas," IEEE Transactions on Antennas and Propagation, Vol. 48, No. 3, 409-417, 2000.
    doi:10.1109/8.841902

    2. Leith, E. N. and J. Upatnieks, "Reconstructed wavefronts and communication theory," JOSA, Vol. 52, No. 10, 1123-1128, 1962.
    doi:10.1364/JOSA.52.001123

    3. Gabor, D., "Microscopy by reconstructed wavefronts," Proc. Roy. Soc., Vol. A, 454-487, 1949.

    4. Gabor, D. and W. P. Goss, "Interference microscope with total wavefront reconstruction," JOSA, Vol. 56, No. 7, 849-856, 1966.
    doi:10.1364/JOSA.56.000849

    5. Yamaguchi, I. and T. Zhang, "Phase-shifting digital holography," Optics Letters, Vol. 22, No. 16, 1268-1270, 1997.
    doi:10.1364/OL.22.001268

    6. Meng, X. F., et al., "Two-step phase-shifting interferometry and its application in image encryption," Optics Letters, Vol. 31, No. 10, 1414-1416, 2006.
    doi:10.1364/OL.31.001414

    7. Liu, J. P. and T. C. Poon, "Two-step-only quadrature phase-shifting digital holography," Optics Letters, Vol. 34, No. 3, 250-252, 2009.
    doi:10.1364/OL.34.000250

    8. Junkin, G., "Planar near-field phase retrieval using GPUs for accurate THz far-field prediction," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 4, 1763-1776, 2013.
    doi:10.1109/TAP.2012.2220324