Circularly polarized terahertz leaky-wave antenna with metamaterial scatterers

Shaghik Atakaramians; Yasuaki Monnai; Withawat Withayachumnankul

doi:10.1109/IRMMW-THz.2015.7327906

Circularly polarized terahertz leaky-wave antenna with metamaterial scatterers

Shaghik Atakaramians, Yasuaki Monnai, Withawat Withayachumnankul

Department of Applied Physics and Physico-Informatics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We propose a leaky-wave antenna to generate circularly polarized highly directional terahertz beam using metamaterial scatters. A microstrip line is loaded with a series of complementary electric-LC and electric-LC resonators to generate respectively E_x and E_y components. The 90⁰-phase difference and almost unity amplitude ratio of E_x and E_y are achieved by relative positioning of the resonators on and off the stripline and optimizing the gap size. Moreover, the phase front of the radiated wave can be adjusted to a specific direction by controlling the period of the resonator array. These highly directional planar antennas can be utilized in short-range THz communication, sensing and imaging applications.

Original language	English
Title of host publication	IRMMW-THz 2015 - 40th International Conference on Infrared, Millimeter, and Terahertz Waves
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Print)	9781479982721
DOIs	https://doi.org/10.1109/IRMMW-THz.2015.7327906
Publication status	Published - 2015 Nov 11
Event	40th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2015 - Hong Kong, China Duration: 2015 Aug 23 → 2015 Aug 28

Other

Other	40th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2015
Country/Territory	China
City	Hong Kong
Period	15/8/23 → 15/8/28

ASJC Scopus subject areas

Radiation
Computer Networks and Communications

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10.1109/IRMMW-THz.2015.7327906

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Circularly polarized terahertz leaky-wave antenna with metamaterial scatterers. / Atakaramians, Shaghik; Monnai, Yasuaki; Withayachumnankul, Withawat.

IRMMW-THz 2015 - 40th International Conference on Infrared, Millimeter, and Terahertz Waves. Institute of Electrical and Electronics Engineers Inc., 2015. 7327906.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Atakaramians, S, Monnai, Y & Withayachumnankul, W 2015, Circularly polarized terahertz leaky-wave antenna with metamaterial scatterers. in IRMMW-THz 2015 - 40th International Conference on Infrared, Millimeter, and Terahertz Waves., 7327906, Institute of Electrical and Electronics Engineers Inc., 40th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2015, Hong Kong, China, 15/8/23. https://doi.org/10.1109/IRMMW-THz.2015.7327906

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title = "Circularly polarized terahertz leaky-wave antenna with metamaterial scatterers",

abstract = "We propose a leaky-wave antenna to generate circularly polarized highly directional terahertz beam using metamaterial scatters. A microstrip line is loaded with a series of complementary electric-LC and electric-LC resonators to generate respectively Ex and Ey components. The 900-phase difference and almost unity amplitude ratio of Ex and Ey are achieved by relative positioning of the resonators on and off the stripline and optimizing the gap size. Moreover, the phase front of the radiated wave can be adjusted to a specific direction by controlling the period of the resonator array. These highly directional planar antennas can be utilized in short-range THz communication, sensing and imaging applications.",

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N2 - We propose a leaky-wave antenna to generate circularly polarized highly directional terahertz beam using metamaterial scatters. A microstrip line is loaded with a series of complementary electric-LC and electric-LC resonators to generate respectively Ex and Ey components. The 900-phase difference and almost unity amplitude ratio of Ex and Ey are achieved by relative positioning of the resonators on and off the stripline and optimizing the gap size. Moreover, the phase front of the radiated wave can be adjusted to a specific direction by controlling the period of the resonator array. These highly directional planar antennas can be utilized in short-range THz communication, sensing and imaging applications.

AB - We propose a leaky-wave antenna to generate circularly polarized highly directional terahertz beam using metamaterial scatters. A microstrip line is loaded with a series of complementary electric-LC and electric-LC resonators to generate respectively Ex and Ey components. The 900-phase difference and almost unity amplitude ratio of Ex and Ey are achieved by relative positioning of the resonators on and off the stripline and optimizing the gap size. Moreover, the phase front of the radiated wave can be adjusted to a specific direction by controlling the period of the resonator array. These highly directional planar antennas can be utilized in short-range THz communication, sensing and imaging applications.

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BT - IRMMW-THz 2015 - 40th International Conference on Infrared, Millimeter, and Terahertz Waves

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Circularly polarized terahertz leaky-wave antenna with metamaterial scatterers

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