Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
From Arrays of THz Antennas to Large-Area Emitters
Year:2013
Research Areas
  • Electronic technology and of the communications
Information
Abstract
Arrays of coherently driven photomixers with antenna (antenna emitter arrays, AEAs) have been evaluated as a possibility to overcome the power limitations of individual conventional photomixers with antenna (?antenna emitters?, AEs) for the generation of continuous-wave (CW) THz radiation. In this paper, ?large area emitters? (LAEs) are proposed as an alternative approach, and compared with AEAs. In this antenna-free new scheme of photomixing, the THz radiation originates directly from the acceleration of photo-induced charge carriers generated within a large semiconductor area. The quasi-continuous distribution of emitting elements corresponds to a high-density array and results in favorable radiation profiles without side lobes. Moreover, the achievable THz power is expected to outnumber even large AEAs. Last not least, the technological challenge of fabricating LAEs appears to be significantly less demanding.
International
Si
JCR
Si
Title
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
ISBN
2156-342X
Impact factor JCR
Impact info
Volume
3
10.1109/TTHZ.2013.2266541
Journal number
5
From page
532
To page
544
Month
SEPTIEMBRE
Ranking
Participants
  • Autor: Vicente Gonzalez Posadas (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: DIEMAG: Desarrollo e Investigación Electromagnética
  • Departamento: Ingeniería Audiovisual y Comunicaciones
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