Imaging performance of a THz focal plane array

Georgios C. Trichopoulos, Kagan Topalli, Kubilay Sertel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

A new broadband monolithic THz antenna design that covers the entire 0.6 - 1.2 THz band is developed as the imaging pixel of THz focal plane array (FPA). Heterostructure backward diodes are integrated monolithically with the THz antennas and are used as the detectors to reproduce digital images from the 2-dimensional received power distribution. A new simplified design is developed which is capable of focusing the antenna beams directly onto the image plane using an extended-hemispherical lens. We show that a resolution of 1.5 mm can be achieved with this simpler design. For achieving optimal pixel sensitivity, we use full-wave antenna modeling to optimize the impedance matching between the antennas and the integrated diodes. In addition, quasi-optical propagation analysis is used to evaluate and optimize the overall imaging resolution of the THz imaging system.

Original languageEnglish (US)
Title of host publication2011 IEEE International Symposium on Antennas and Propagation - Proceedings
Pages134-136
Number of pages3
DOIs
StatePublished - Nov 1 2011
Externally publishedYes
Event2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011 - Spokane, WA, United States
Duration: Jul 3 2011Jul 8 2011

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)1522-3965

Other

Other2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011
CountryUnited States
CitySpokane, WA
Period7/3/117/8/11

Keywords

  • focal plane arrays
  • quasioptical systems
  • terahertz imaging

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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