Detail publikace

High-gain, Circularly-polarized THz Antenna with Proper Modeling of Structures with Thin Metallic Walls

WARMOWSKA, D. ATIA ABDALMALAK, K. GARCÍA MUÑOZ, L. RAIDA, Z.

Originální název

High-gain, Circularly-polarized THz Antenna with Proper Modeling of Structures with Thin Metallic Walls

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

In the paper, a corporate feed antenna array with slot radiators and a layer of polarizing patches is designed to operate at 350 GHz. The antenna is conceived as a silicon structure fully metalized by gold. Different methods for modeling thin gold layers at terahertz frequencies are compared and the optimum approaches are chosen depending on the thickness of the metal layer and its relation to the skin depth. Two designed antenna arrays are in 2×2 and 4×4 configuration, radiate circularly polarized waves, and have high gains of 13.8 dBi and 18.4 dBi, respectively. Antenna arrays have a low profile of only 1.3 λ0. Cheaper and more available manufacturing technology is presented and discussed in detail together with the measurement results of three manufactured prototypes. Small deviations between the simulated results and the measured ones are obtained due to a lower surface roughness, which is confirmed by the scanning probe microscope. Comparison with state-of-the-art antenna arrays demonstrates that the proposed arrays excel in easy/low-cost manufacturing, high gain, circular polarization with good axial-ratio bandwidth, compact size, and the possibility to easily extend the array into a larger version.

Klíčová slova

Antenna arrays, Antennas and propagation, Modeling, Nanofabrication, Terahertz antenna array, terahertz gold conductivity, thin metal modeling.

Autoři

WARMOWSKA, D.; ATIA ABDALMALAK, K.; GARCÍA MUÑOZ, L.; RAIDA, Z.

Vydáno

28. 8. 2020

Nakladatel

IEEE

ISSN

2169-3536

Periodikum

IEEE Access

Ročník

8

Číslo

1

Stát

Spojené státy americké

Strany od

125223

Strany do

125233

Strany počet

11

URL

https://ieeexplore.ieee.org/document/9133564

Plný text v Digitální knihovně

http://hdl.handle.net/11012/193381

BibTex

@article{BUT164432,
  author="Dominika {Warmowska} and Kerlos {Atia Abdalmalak} and Luis Enrique {García Muñoz} and Zbyněk {Raida}",
  title="High-gain, Circularly-polarized THz Antenna with Proper Modeling of Structures with Thin Metallic Walls",
  journal="IEEE Access",
  year="2020",
  volume="8",
  number="1",
  pages="125223--125233",
  doi="10.1109/ACCESS.2020.3007576",
  issn="2169-3536",
  url="https://ieeexplore.ieee.org/document/9133564"
}