Dirac leaky wave antennas

Rezaee, S ; Sharif University of Technology | 2019

465 Viewed
  1. Type of Document: Article
  2. DOI: 10.1109/MMWaTT.2018.8661250
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2019
  4. Abstract:
  5. Dirac leaky-wave antennas (DLWAs) are derived from photonic crystals exhibiting Dirac cone dispersion around their Γ-point. DLWAs provide high directive beams and continuous frequency beam scanning, non-fluctuating leakage constant and real non-zero Bloch impedance at and around broadside, due to the closed and linear Dirac dispersion relation around broadside. These features, along with their inherent compatibility for higher frequency designs (larger unit cells compared to metamaterials), make DLWAs an ideal candidate for the upper microwave, mm-wave and terahertz frequencies, and for applications such as radar, 5G, spectroscopy, etc. In this review, we cover the recent developments on Dirac leaky wave antennas, their principles and salient features, and technological potentials of these structures. © 2018 IEEE
  6. Keywords:
  7. Broadside radiation ; Closed bandgap ; Dirac photonic crystal ; Leaky wave antenna ; Transmission-line grid ; 5G mobile communication systems ; Dispersion (waves) ; Metamaterial antennas ; Millimeter waves ; Photonic crystals ; Radar antennas ; Scanning antennas ; Terahertz spectroscopy ; Terahertz waves ; Accidental degeneracy ; Broadside radiations ; Continuous frequency ; Dispersion relations ; Higher frequencies ; Leaky wave antennas ; Salient features ; Terahertz frequencies ; Traveling wave antennas
  8. Source: 5th International Conference on Millimeter-Wave and Terahertz Technologies, MMWaTT 2018, 18 December 2018 through 20 December 2018 ; Volume 2018-December , 2019 , Pages 1-5 ; 21570965 (ISSN); 9781538677179 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/8661250