Millimeter wave imaging at up to 40 frames per second using an optoelectronic photo-injected Fresnel zone plate lens antenna

Proceedings of SPIE: Passive and Active Millimater-Wave Imaging XIX, Volume 9830, Proceedings of SPIE : the International Society for Optical Engineering

Abstract

Optoelectronic methods are promising for rapid and highly reconfigurable beam steering across the microwave to the terahertz range. In particular, the photo-injected Fresnel zone plate antenna (piFZPA) offers high speed, wide angle, precise beam steering with good beam quality, to enable video rate millimeter wave imagery with no moving parts. We present a piFZPA demonstrator based on a commercial digital light projector (DLP) and high power laser which achieves steering rates up to 17,500 beams per second at 94 and 188 GHz. We also demonstrate radar imaging at 94 GHz at frame rates of 40 Hz (2D PPI) and 7 Hz (3D volumetric).

Keywords

beam steering, digital light projector, Fresnel zone plate, Imaging, millimeter wave, plasma antenna, radar

DOI

10.1117/12.2223026

Citation

Robertson , D A , Gallacher , T F , Søndenå , R & Macfarlane , D G 2016 , Millimeter wave imaging at up to 40 frames per second using an optoelectronic photo-injected Fresnel zone plate lens antenna . in D A Wikner & A R Luukanen (eds) , Proceedings of SPIE: Passive and Active Millimater-Wave Imaging XIX . vol. 9830 , Proceedings of SPIE : the International Society for Optical Engineering , SPIE , Passive and Active Millimeter-Wave Imaging , Baltimore , Maryland , United States , 21/04/2016 . https://doi.org/10.1117/12.2223026

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-201812106280

Collections

[article-cris] Sähkötekniikan korkeakoulu / ELEC

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