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Proceedings Paper

High sensitivity broadband 360GHz passive receiver for TeraSCREEN
Author(s): Hui Wang; Matthew Oldfield; Itziar Maestrojuán; Duncan Platt; Nick Brewster; Colin Viegas; Byron Alderman; Brian N. Ellison
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Paper Abstract

TeraSCREEN is an EU FP7 Security project aimed at developing a combined active, with frequency channel centered at 360 GHz, and passive, with frequency channels centered at 94, 220 and 360 GHz, imaging system for border controls in airport and commercial ferry ports. The system will include automatic threat detection and classification and has been designed with a strong focus on the ethical, legal and practical aspects of operating in these environments and with the potential threats in mind. Furthermore, both the passive and active systems are based on array receivers with the active system consisting of a 16 element MIMO FMCW radar centered at 360 GHz with a bandwidth of 30 GHz utilizing a custom made direct digital synthesizer. The 16 element passive receiver system at 360 GHz uses commercial Gunn diode oscillators at 90 GHz followed by custom made 90 to 180 GHz frequency doublers supplying the local oscillator for 360 GHz sub-harmonic mixers. This paper describes the development of the passive antenna module, local oscillator chain, frequency mixers and detectors used in the passive receiver array of this system. The complete passive receiver chain is characterized in this paper.

Paper Details

Date Published: 12 May 2016
PDF: 11 pages
Proc. SPIE 9830, Passive and Active Millimeter-Wave Imaging XIX, 983008 (12 May 2016); doi: 10.1117/12.2229246
Show Author Affiliations
Hui Wang, STFC Rutherford Appleton Lab. (United Kingdom)
Matthew Oldfield, STFC Rutherford Appleton Lab. (United Kingdom)
Itziar Maestrojuán, Anteral S.L. (Spain)
Duncan Platt, Acreo AB (Sweden)
Nick Brewster, STFC Rutherford Appleton Lab. (United Kingdom)
Colin Viegas, Teratech Components Ltd. (United Kingdom)
Byron Alderman, STFC Rutherford Appleton Lab. (United Kingdom)
Teratech Components Ltd. (United Kingdom)
Brian N. Ellison, STFC Rutherford Appleton Lab. (United Kingdom)


Published in SPIE Proceedings Vol. 9830:
Passive and Active Millimeter-Wave Imaging XIX
David A. Wikner; Arttu R. Luukanen, Editor(s)

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