Leaky-wave antenna with switchable omnidirectional conical radiation via polarization handedness

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Leaky-wave antenna with switchable omnidirectional conical radiation via polarization handedness. / Liu, Yahong; Li, Meize; Song, Kun; Hu, Dingshan; Liu, Hongchao; Zhao, Xiaopeng; Zhang, Shuang; Navarro-Cia, Miguel.

In: IEEE Transactions on Antennas and Propagation, 03.2020, p. 1282-1288.

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@article{9084ac4211d040c29530e210c5db0fc5,
title = "Leaky-wave antenna with switchable omnidirectional conical radiation via polarization handedness",
abstract = "Reconfigurable antennas capable of beam-steering offer an efficient solution to optimize the use of the crowded wireless medium and can serve as a multifunction antenna. Beam-steering is often achieved by antenna geometry switching at the expense of hardware complexity. Here, polarization is used to realize beam-steering without the need of antenna geometry modification. Depending on the handedness of the feed, backward or forward conical radiation is demonstrated in a ∼13λ0-long short-circuited helically slotted waveguide antenna. Tapering the slit width with a Taylor distribution reduces the measured sidelobe levels by ∼3 dB in average and results in a realized gain of 10-13 dB and 11-13 dB for right-handed (backward radiation) and left-handed circularly polarized (forward radiation) feeding, respectively, in the bandwidth from 8.5 to 9.5 GHz.",
keywords = "Beam-steering, circular polarization, helical slit antenna, leaky wave antenna, periodic structure",
author = "Yahong Liu and Meize Li and Kun Song and Dingshan Hu and Hongchao Liu and Xiaopeng Zhao and Shuang Zhang and Miguel Navarro-Cia",
year = "2020",
month = mar,
doi = "10.1109/TAP.2019.2927865",
language = "English",
pages = "1282--1288",
journal = "IEEE Transactions on Antennas and Propagation",
issn = "0018-926X",
publisher = "IEEE Xplore",

}

RIS

TY - JOUR

T1 - Leaky-wave antenna with switchable omnidirectional conical radiation via polarization handedness

AU - Liu, Yahong

AU - Li, Meize

AU - Song, Kun

AU - Hu, Dingshan

AU - Liu, Hongchao

AU - Zhao, Xiaopeng

AU - Zhang, Shuang

AU - Navarro-Cia, Miguel

PY - 2020/3

Y1 - 2020/3

N2 - Reconfigurable antennas capable of beam-steering offer an efficient solution to optimize the use of the crowded wireless medium and can serve as a multifunction antenna. Beam-steering is often achieved by antenna geometry switching at the expense of hardware complexity. Here, polarization is used to realize beam-steering without the need of antenna geometry modification. Depending on the handedness of the feed, backward or forward conical radiation is demonstrated in a ∼13λ0-long short-circuited helically slotted waveguide antenna. Tapering the slit width with a Taylor distribution reduces the measured sidelobe levels by ∼3 dB in average and results in a realized gain of 10-13 dB and 11-13 dB for right-handed (backward radiation) and left-handed circularly polarized (forward radiation) feeding, respectively, in the bandwidth from 8.5 to 9.5 GHz.

AB - Reconfigurable antennas capable of beam-steering offer an efficient solution to optimize the use of the crowded wireless medium and can serve as a multifunction antenna. Beam-steering is often achieved by antenna geometry switching at the expense of hardware complexity. Here, polarization is used to realize beam-steering without the need of antenna geometry modification. Depending on the handedness of the feed, backward or forward conical radiation is demonstrated in a ∼13λ0-long short-circuited helically slotted waveguide antenna. Tapering the slit width with a Taylor distribution reduces the measured sidelobe levels by ∼3 dB in average and results in a realized gain of 10-13 dB and 11-13 dB for right-handed (backward radiation) and left-handed circularly polarized (forward radiation) feeding, respectively, in the bandwidth from 8.5 to 9.5 GHz.

KW - Beam-steering

KW - circular polarization

KW - helical slit antenna

KW - leaky wave antenna

KW - periodic structure

UR - http://www.scopus.com/inward/record.url?scp=85069930820&partnerID=8YFLogxK

U2 - 10.1109/TAP.2019.2927865

DO - 10.1109/TAP.2019.2927865

M3 - Article

SP - 1282

EP - 1288

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

SN - 0018-926X

ER -