A broadband slot antenna with unidirectional circularly polarized radiation patterns

Rui Xu; Jian Ying Li; Kun Wei; Guang Wei Yang

doi:10.1109/LAWP.2016.2574808

A broadband slot antenna with unidirectional circularly polarized radiation patterns

Rui Xu, Jian Ying Li, Kun Wei, Guang Wei Yang

School of Electronics and Information

Northwestern Polytechnical University Xian

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

25 Scopus citations

Abstract

A novel circular slot antenna is proposed in this letter to generate a broadband circular polarization (CP) wave. This antenna consists of a Γ-shaped radiator and a circular ground with a cut of three ellipses. By adjusting the size and position of these ellipses, a CP wave can be realized. A chip resistor, which is used to receive the currents and decrease reflection, can significantly enhance the CP bandwidth. The study of the effect to antenna performance of different geometric parameters has been conducted. The results show that good performance of impedance bandwidth (S₁₁ < -10 dB) is approximately 106.1% (1.01 ∼ 3.29 GHz), and 3-dB axial-ratio bandwidth is approximately 89.7% (1.26 ∼ 3.31 GHz). Moreover, the antenna exhibits a stable average gain of about 6.0 dBic in the operating band, and the circularly polarized peak gain is about 7.6 dBic.

Original language	English
Article number	7482783
Pages (from-to)	317-320
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	16
DOIs	https://doi.org/10.1109/LAWP.2016.2574808
State	Published - 2017

Keywords

Broadband
circular polarization (CP)
slot antenna
unidirectional

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10.1109/LAWP.2016.2574808

Cite this

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title = "A broadband slot antenna with unidirectional circularly polarized radiation patterns",

abstract = "A novel circular slot antenna is proposed in this letter to generate a broadband circular polarization (CP) wave. This antenna consists of a Γ-shaped radiator and a circular ground with a cut of three ellipses. By adjusting the size and position of these ellipses, a CP wave can be realized. A chip resistor, which is used to receive the currents and decrease reflection, can significantly enhance the CP bandwidth. The study of the effect to antenna performance of different geometric parameters has been conducted. The results show that good performance of impedance bandwidth (S11 < -10 dB) is approximately 106.1% (1.01 ∼ 3.29 GHz), and 3-dB axial-ratio bandwidth is approximately 89.7% (1.26 ∼ 3.31 GHz). Moreover, the antenna exhibits a stable average gain of about 6.0 dBic in the operating band, and the circularly polarized peak gain is about 7.6 dBic.",

keywords = "Broadband, circular polarization (CP), slot antenna, unidirectional",

author = "Rui Xu and Li, {Jian Ying} and Kun Wei and Yang, {Guang Wei}",

note = "Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

year = "2017",

doi = "10.1109/LAWP.2016.2574808",

language = "英语",

volume = "16",

pages = "317--320",

journal = "IEEE Antennas and Wireless Propagation Letters",

issn = "1536-1225",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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AU - Xu, Rui

AU - Li, Jian Ying

AU - Wei, Kun

AU - Yang, Guang Wei

PY - 2017

Y1 - 2017

N2 - A novel circular slot antenna is proposed in this letter to generate a broadband circular polarization (CP) wave. This antenna consists of a Γ-shaped radiator and a circular ground with a cut of three ellipses. By adjusting the size and position of these ellipses, a CP wave can be realized. A chip resistor, which is used to receive the currents and decrease reflection, can significantly enhance the CP bandwidth. The study of the effect to antenna performance of different geometric parameters has been conducted. The results show that good performance of impedance bandwidth (S11 < -10 dB) is approximately 106.1% (1.01 ∼ 3.29 GHz), and 3-dB axial-ratio bandwidth is approximately 89.7% (1.26 ∼ 3.31 GHz). Moreover, the antenna exhibits a stable average gain of about 6.0 dBic in the operating band, and the circularly polarized peak gain is about 7.6 dBic.

AB - A novel circular slot antenna is proposed in this letter to generate a broadband circular polarization (CP) wave. This antenna consists of a Γ-shaped radiator and a circular ground with a cut of three ellipses. By adjusting the size and position of these ellipses, a CP wave can be realized. A chip resistor, which is used to receive the currents and decrease reflection, can significantly enhance the CP bandwidth. The study of the effect to antenna performance of different geometric parameters has been conducted. The results show that good performance of impedance bandwidth (S11 < -10 dB) is approximately 106.1% (1.01 ∼ 3.29 GHz), and 3-dB axial-ratio bandwidth is approximately 89.7% (1.26 ∼ 3.31 GHz). Moreover, the antenna exhibits a stable average gain of about 6.0 dBic in the operating band, and the circularly polarized peak gain is about 7.6 dBic.

KW - Broadband

KW - circular polarization (CP)

KW - slot antenna

KW - unidirectional

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M1 - 7482783

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A broadband slot antenna with unidirectional circularly polarized radiation patterns

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Keywords

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