26 November 2019 Numerical three-step phase-shifting microwave holography
Author Affiliations +
Abstract

Phase-shifting microwave holography utilizes the antennas to record the hologram. In this technique, the antenna has to perform two-dimensional (2-D) scanning over the test area corresponding to each phase shift in the reference wave. A numerical three-step phase-shifting is proposed for recording the microwave holograms in which only a single 2-D scan over an area is recorded experimentally whereas two remaining phase shifts are introduced numerically. This method is applied for imaging of metallic objects to inspect the feasibility of the proposed method. The qualitative results exhibit its effectiveness while reconstructing the amplitude and phase of an object at a microwave frequency of 8.5 GHz (or λ  =  35.29  mm).

© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2019/$28.00 © 2019 SPIE
Vineeta Kumari, Neelam Barak, and Gyanendra Sheoran "Numerical three-step phase-shifting microwave holography," Optical Engineering 58(11), 114107 (26 November 2019). https://doi.org/10.1117/1.OE.58.11.114107
Received: 4 September 2019; Accepted: 14 November 2019; Published: 26 November 2019
Lens.org Logo
CITATIONS
Cited by 3 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Holograms

Phase shifts

Microwave radiation

Holography

Antennas

Directional couplers

Optical engineering

RELATED CONTENT

Millimeter-Wave Six-Ports
Proceedings of SPIE (October 24 1985)
Real-Time Holography With Microwaves And Millimeter Waves
Proceedings of SPIE (August 22 1980)
Design Of Efficient And Wideband Travelling-Wave Modulators
Proceedings of SPIE (November 03 1986)

Back to Top