Analysis and Design of Tunable THz 1-D Leaky-Wave Antennas Based on Nematic Liquid Crystals

被引：4

作者：

Fuscaldo, Walter ^{[1
]}

Zografopoulos, Dimitrios C. ^{[1
]}

Imperato, Francesca ^{[2
]}

Burghignoli, Paolo ^{[3
]}

Beccherelli, Romeo ^{[1
]}

Galli, Alessandro ^{[3
]}

机构：

[1] CNR, Ist Microelettron & Microsistemi, I-00133 Rome, Italy

[2] Microsoft, Azure Cloud & AI, I-20154 Milan, Italy

[3] Sapienza Univ Rome, Dept Informat Engn Elect & Telecommun, I-00184 Rome, Italy

来源：

APPLIED SCIENCES-BASEL | 2022年 / 12卷 / 22期

关键词：

leaky-wave antennas; tunable antennas; terahertz; frequency selective surfaces; liquid crystals; HIGH-IMPEDANCE; TRANSMISSION-LINE; GRAPHENE; METAMATERIALS; OPTIMIZATION; RADIATION; BEAMWIDTH; MODES;

D O I：

10.3390/app122211770

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The tunable properties of nematic liquid crystals (NLC) are here exploited in a peculiar leaky waveguide with artificial magnetic conductors as the lateral walls, a bottom metal ground plane, and a homogenized metasurface on top to obtain dynamic beamsteering at a fixed terahertz frequency. The waveguide consists of an NLC cell sandwiched between two dielectric layers. The proposed antenna system works on its transverse-magnetic leaky mode and is capable of radiating a beam that scans either by frequency or by changing the bias voltage applied across the NLC cell. The design parameters are optimized through a rigorous modal analysis of the structure, and the radiation performance is validated through full-wave simulations. The results are promising for the realization of next-generation tunable terahertz leaky-wave antennas.

引用

页数：14

共 50 条

[41] Application of FDTD method to the analysis and design of leaky-wave antennas at microwaves and millimeter waves
Frezza, F.
Lampariello, P.
Moretti, R.
Nocito, P.
Tsuji, M.
[J]. INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, 2008, 29 (05): : 457 - 464
[42] Analysis and design of sub-wavelength resonant cavity type 2-D leaky-wave antennas
Kelly, James R.
Kokkinos, Titos
Feresidis, Alexandros P.
[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2008, 56 (09) : 2817 - 2825
[43] Accurate Analysis of Practical 3D Periodic Leaky-Wave Patch Antennas
Zunoubi, Mohammad R.
Kalhor, Hassan A.
[J]. INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION, 2008, 2008
[44] Analysis of 2-D periodic Leaky-Wave nano-antennas in the NIR
Lorente-Crespo, Maria
Mateo-Segura, Carolina
[J]. 2014 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM (APSURSI), 2014, : 83 - 84
[45] 1-D Combline Leaky-Wave Antenna With the Open-Stopband Suppressed: Design Considerations and Comparisons With Measurements
Williams, Jeffrey T.
Baccarelli, Paolo
Paulotto, Simone
Jackson, David R.
[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2013, 61 (09) : 4484 - 4492
[46] An Electrically Tunable Leaky-Wave Antenna Based on Slotted Metagratings Using Liquid Crystal
Al Soad, Odai Hassan Raheem
Zhou, Changfei
Fu, Jiahui
Wu, Qun
[J]. PROCEEDINGS OF THE 2021 CROSS STRAIT RADIO SCIENCE AND WIRELESS TECHNOLOGY CONFERENCE (CSRSWTC), 2021, : 123 - 125
[47] Dual-beam radiation from 1D leaky-wave antennas
Garcia-Vigueras, Maria
Esquius-Morote, Marc
Perruisseau-Carrier, Julien
Mosig, Juan R.
[J]. 2014 8TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP), 2014, : 1447 - 1450
[48] 2-D periodic leaky-wave antennas - Part I: Metal patch design
Zhao, TX
Jackson, DR
Williams, JT
Yang, HYD
Oliner, AA
[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2005, 53 (11) : 3505 - 3514
[49] Full-Wave Analysis and Design of Circular Half-Width Microstrip Leaky-Wave Antennas
Tomofuji, Takao
Terada, Hiroshi
Kawabata, Shogo
Wakino, Kikuo
Kitazawa, Toshihide
[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2013, 61 (08) : 3967 - 3975
[50] A simple and efficient finite difference frequency domain method for the analysis and design of leaky-wave antennas
Xu, Feng
[J]. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2012, 54 (12) : 2814 - 2817

← 1 2 3 4 5 →