UWB circularly polarised slot antenna with modified ground plane and L-shaped radiator

Rui Xu; Jianying Li; Jie Liu; Shi Gang Zhou; Kun Wei

doi:10.1049/el.2018.1346

UWB circularly polarised slot antenna with modified ground plane and L-shaped radiator

Rui Xu, Jianying Li, Jie Liu, Shi Gang Zhou, Kun Wei

School of Electronics and Information

Northwestern Polytechnical University Xian

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

12 Scopus citations

Abstract

An UWB circularly polarised (CP) slot antenna with simple structure is presented in this Letter. By etching a simple C-shaped slot on the planar ground, adopting an L-shaped strip as a radiator, and employing an off-centre-fed structure, the proposed CP antenna can easily be realised with both wideband impedance bandwidth (IBW) and 3 dB axial-ratio bandwidth (ARBW). The impedance and ARBWs of this antenna can be further expanded by adding a matching stub and cutting an L-shaped slit on the lower ground. This antenna can realise a wideband IBW (S₁₁ < −10 dB) of about 3.62 GHz (124.4%, 1.10–4.72 GHz) and 3 dB ARBW of about 3.6 GHz (115.2%, 1.26–4.68 GHz).

Original language	English
Pages (from-to)	918-920
Number of pages	3
Journal	Electronics Letters
Volume	54
Issue number	15
DOIs	https://doi.org/10.1049/el.2018.1346
State	Published - 26 Jul 2018

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10.1049/el.2018.1346

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title = "UWB circularly polarised slot antenna with modified ground plane and L-shaped radiator",

abstract = "An UWB circularly polarised (CP) slot antenna with simple structure is presented in this Letter. By etching a simple C-shaped slot on the planar ground, adopting an L-shaped strip as a radiator, and employing an off-centre-fed structure, the proposed CP antenna can easily be realised with both wideband impedance bandwidth (IBW) and 3 dB axial-ratio bandwidth (ARBW). The impedance and ARBWs of this antenna can be further expanded by adding a matching stub and cutting an L-shaped slit on the lower ground. This antenna can realise a wideband IBW (S11 < −10 dB) of about 3.62 GHz (124.4%, 1.10–4.72 GHz) and 3 dB ARBW of about 3.6 GHz (115.2%, 1.26–4.68 GHz).",

author = "Rui Xu and Jianying Li and Jie Liu and Zhou, {Shi Gang} and Kun Wei",

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T1 - UWB circularly polarised slot antenna with modified ground plane and L-shaped radiator

AU - Xu, Rui

AU - Li, Jianying

AU - Liu, Jie

AU - Zhou, Shi Gang

AU - Wei, Kun

PY - 2018/7/26

Y1 - 2018/7/26

N2 - An UWB circularly polarised (CP) slot antenna with simple structure is presented in this Letter. By etching a simple C-shaped slot on the planar ground, adopting an L-shaped strip as a radiator, and employing an off-centre-fed structure, the proposed CP antenna can easily be realised with both wideband impedance bandwidth (IBW) and 3 dB axial-ratio bandwidth (ARBW). The impedance and ARBWs of this antenna can be further expanded by adding a matching stub and cutting an L-shaped slit on the lower ground. This antenna can realise a wideband IBW (S11 < −10 dB) of about 3.62 GHz (124.4%, 1.10–4.72 GHz) and 3 dB ARBW of about 3.6 GHz (115.2%, 1.26–4.68 GHz).

AB - An UWB circularly polarised (CP) slot antenna with simple structure is presented in this Letter. By etching a simple C-shaped slot on the planar ground, adopting an L-shaped strip as a radiator, and employing an off-centre-fed structure, the proposed CP antenna can easily be realised with both wideband impedance bandwidth (IBW) and 3 dB axial-ratio bandwidth (ARBW). The impedance and ARBWs of this antenna can be further expanded by adding a matching stub and cutting an L-shaped slit on the lower ground. This antenna can realise a wideband IBW (S11 < −10 dB) of about 3.62 GHz (124.4%, 1.10–4.72 GHz) and 3 dB ARBW of about 3.6 GHz (115.2%, 1.26–4.68 GHz).

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UWB circularly polarised slot antenna with modified ground plane and L-shaped radiator

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