Goubau-Line Leaky-Wave Antenna for Wide-Angle Beam Scanning from Backfire to Endfire

Karthik Rudramuni; Krishnamoorthy Kandasamy; Qingfeng Zhang; Xiao Lan Tang; Abhishek Kandwal; Puneeth Kumar Tharehalli Rajanna; Haiwen Liu

doi:10.1109/LAWP.2018.2855702

Goubau-Line Leaky-Wave Antenna for Wide-Angle Beam Scanning from Backfire to Endfire

Karthik Rudramuni, Krishnamoorthy Kandasamy, Qingfeng Zhang^*, Xiao Lan Tang, Abhishek Kandwal, Puneeth Kumar Tharehalli Rajanna, Haiwen Liu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

66 Citations (Scopus)

Abstract

A Goubau-line leaky-wave antenna (LWA) with a large scanning angle is presented in this letter. In contrast to the conventional Goubau-line leaky wave with a small scanning angle range, this letter employed a periodically bending Goubau line, which not only brings in a periodic perturbation for leaky-wave radiation, but also enhances the scanning range due to the increased delay for each line element. The simulation and experimental results show that the proposed LWA provides 90 radiation efficiency and 7-10 dBi radiation gain from backfire to endfire through broadside as frequency changes. The proposed antenna features good radiation performance and has a compact and low-profile configuration.

Original language	English
Article number	8410814
Pages (from-to)	1571-1574
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	17
Issue number	8
DOIs	https://doi.org/10.1109/LAWP.2018.2855702
Publication status	Published - Aug 2018
Externally published	Yes

Keywords

Efficiency
Goubau line
leaky-wave antenna (LWA)
scanning

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10.1109/LAWP.2018.2855702

Cite this

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title = "Goubau-Line Leaky-Wave Antenna for Wide-Angle Beam Scanning from Backfire to Endfire",

abstract = "A Goubau-line leaky-wave antenna (LWA) with a large scanning angle is presented in this letter. In contrast to the conventional Goubau-line leaky wave with a small scanning angle range, this letter employed a periodically bending Goubau line, which not only brings in a periodic perturbation for leaky-wave radiation, but also enhances the scanning range due to the increased delay for each line element. The simulation and experimental results show that the proposed LWA provides 90 radiation efficiency and 7-10 dBi radiation gain from backfire to endfire through broadside as frequency changes. The proposed antenna features good radiation performance and has a compact and low-profile configuration.",

keywords = "Efficiency, Goubau line, leaky-wave antenna (LWA), scanning",

author = "Karthik Rudramuni and Krishnamoorthy Kandasamy and Qingfeng Zhang and Tang, {Xiao Lan} and Abhishek Kandwal and Rajanna, {Puneeth Kumar Tharehalli} and Haiwen Liu",

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year = "2018",

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AU - Rudramuni, Karthik

AU - Kandasamy, Krishnamoorthy

AU - Zhang, Qingfeng

AU - Tang, Xiao Lan

AU - Kandwal, Abhishek

AU - Rajanna, Puneeth Kumar Tharehalli

AU - Liu, Haiwen

PY - 2018/8

Y1 - 2018/8

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AB - A Goubau-line leaky-wave antenna (LWA) with a large scanning angle is presented in this letter. In contrast to the conventional Goubau-line leaky wave with a small scanning angle range, this letter employed a periodically bending Goubau line, which not only brings in a periodic perturbation for leaky-wave radiation, but also enhances the scanning range due to the increased delay for each line element. The simulation and experimental results show that the proposed LWA provides 90 radiation efficiency and 7-10 dBi radiation gain from backfire to endfire through broadside as frequency changes. The proposed antenna features good radiation performance and has a compact and low-profile configuration.

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KW - scanning

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Goubau-Line Leaky-Wave Antenna for Wide-Angle Beam Scanning from Backfire to Endfire

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Keywords

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