Terahertz corrugated and bull's-eye antennas

Research output: Contribution to journalArticlepeer-review


  • Miguel Beruete
  • Unai Beaskoetxea
  • Mokhtar Zehar
  • Amit Agrawal
  • Shuchang Liu
  • Karine Blary
  • Abdallah Chahadih
  • Xiang Lei Han
  • David Etayo Salinas
  • Ajay Nahata
  • Tahsin Akalin
  • Mario Sorolla Ayza

Colleges, School and Institutes

External organisations

  • Universidad Pública de Navarra
  • Institute of Electronics, Microelectronics and Nanotechnology (IEMN), Lille University
  • Syracuse University
  • Department of Physics and Astronomy, University of Utah


The radiation and temporal properties of one-dimensional and two-dimensional (Bull's-eye) corrugated antennas are investigated numerically and experimentally at terahertz. The thickness of the antenna is miniaturized, within the fabrication limits, by using the transverse slot resonance rather than the longitudinal resonance. Square and triangular corrugations are discussed. The comparison between these two profiles shows that, in terms of return loss and gain, the antenna is robust to the corrugation shape, which alleviates the fabrication complexity. The temporal analysis of the Bull's eye antenna is also shown to demonstrate the contributions coming from the leakage of the surface wave at each groove. This insight allows us to engineer the temporal shape of the output pulse by varying independently the depth of each groove. The antennas presented here hold promise for manipulating with very low profiles pulse- and beam-shapes of THz radiation.


Original languageEnglish
Article number6661458
Pages (from-to)740-747
Number of pages8
JournalIEEE Transactions on Terahertz Science and Technology
Issue number6
Publication statusPublished - Nov 2013


  • Corrugated surfaces, leaky-wave antennas, subwavelength aperture, time-domain spectroscopy, very low profile feeder