A Wideband High-Gain Cavity-Backed Low-Profile Dipole Antenna

Jian Ying Li; Rui Xu; Xuan Zhang; Shi Gang Zhou; Guang Wei Yang

doi:10.1109/TAP.2016.2620607

A Wideband High-Gain Cavity-Backed Low-Profile Dipole Antenna

Jian Ying Li, Rui Xu, Xuan Zhang, Shi Gang Zhou, Guang Wei Yang

School of Electronics and Information

Northwestern Polytechnical University Xian

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

45 Scopus citations

Abstract

In this communication, a compact, wideband, low-profile, and high gain dipole antenna is proposed. A microstrip coupling line is used to feed the ellipse pairs, which is two arms of the antenna. This simple feeding structure can significantly enhance the impedance bandwidth (IBW). A cavity-backed structure is adopted to achieve the low-profile antenna. With the influence of the cavity-backed structure, the new antenna has a higher gain over the whole frequency band. An optimized antenna with a height of only 0.17 λ (where λ is the free space wavelength at the lowest frequency) is designed and measured. The measured result shows that the IBW for VSWR < 2 is 117% (2.48-9.51 GHz). Further, the gain bandwidth (Gain > 6 dBi) from 2.57 to 8.73 GHz is more than 108.9%. The antenna radiation pattern performs well over the whole band, and the peak gain can reach 11.8 dBi.

Original language	English
Article number	7636967
Pages (from-to)	5465-5469
Number of pages	5
Journal	IEEE Transactions on Antennas and Propagation
Volume	64
Issue number	12
DOIs	https://doi.org/10.1109/TAP.2016.2620607
State	Published - Dec 2016

Keywords

Broadband antenna
higher antenna gain
low-profile

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10.1109/TAP.2016.2620607

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@article{02ccea49e7034ca38122e28bf526666c,

title = "A Wideband High-Gain Cavity-Backed Low-Profile Dipole Antenna",

abstract = "In this communication, a compact, wideband, low-profile, and high gain dipole antenna is proposed. A microstrip coupling line is used to feed the ellipse pairs, which is two arms of the antenna. This simple feeding structure can significantly enhance the impedance bandwidth (IBW). A cavity-backed structure is adopted to achieve the low-profile antenna. With the influence of the cavity-backed structure, the new antenna has a higher gain over the whole frequency band. An optimized antenna with a height of only 0.17 λ (where λ is the free space wavelength at the lowest frequency) is designed and measured. The measured result shows that the IBW for VSWR < 2 is 117% (2.48-9.51 GHz). Further, the gain bandwidth (Gain > 6 dBi) from 2.57 to 8.73 GHz is more than 108.9%. The antenna radiation pattern performs well over the whole band, and the peak gain can reach 11.8 dBi.",

keywords = "Broadband antenna, higher antenna gain, low-profile",

author = "Li, {Jian Ying} and Rui Xu and Xuan Zhang and Zhou, {Shi Gang} and Yang, {Guang Wei}",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.",

year = "2016",

month = dec,

doi = "10.1109/TAP.2016.2620607",

language = "英语",

volume = "64",

pages = "5465--5469",

journal = "IEEE Transactions on Antennas and Propagation",

issn = "0018-926X",

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

number = "12",

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T1 - A Wideband High-Gain Cavity-Backed Low-Profile Dipole Antenna

AU - Li, Jian Ying

AU - Xu, Rui

AU - Zhang, Xuan

AU - Zhou, Shi Gang

AU - Yang, Guang Wei

PY - 2016/12

Y1 - 2016/12

N2 - In this communication, a compact, wideband, low-profile, and high gain dipole antenna is proposed. A microstrip coupling line is used to feed the ellipse pairs, which is two arms of the antenna. This simple feeding structure can significantly enhance the impedance bandwidth (IBW). A cavity-backed structure is adopted to achieve the low-profile antenna. With the influence of the cavity-backed structure, the new antenna has a higher gain over the whole frequency band. An optimized antenna with a height of only 0.17 λ (where λ is the free space wavelength at the lowest frequency) is designed and measured. The measured result shows that the IBW for VSWR < 2 is 117% (2.48-9.51 GHz). Further, the gain bandwidth (Gain > 6 dBi) from 2.57 to 8.73 GHz is more than 108.9%. The antenna radiation pattern performs well over the whole band, and the peak gain can reach 11.8 dBi.

AB - In this communication, a compact, wideband, low-profile, and high gain dipole antenna is proposed. A microstrip coupling line is used to feed the ellipse pairs, which is two arms of the antenna. This simple feeding structure can significantly enhance the impedance bandwidth (IBW). A cavity-backed structure is adopted to achieve the low-profile antenna. With the influence of the cavity-backed structure, the new antenna has a higher gain over the whole frequency band. An optimized antenna with a height of only 0.17 λ (where λ is the free space wavelength at the lowest frequency) is designed and measured. The measured result shows that the IBW for VSWR < 2 is 117% (2.48-9.51 GHz). Further, the gain bandwidth (Gain > 6 dBi) from 2.57 to 8.73 GHz is more than 108.9%. The antenna radiation pattern performs well over the whole band, and the peak gain can reach 11.8 dBi.

KW - Broadband antenna

KW - higher antenna gain

KW - low-profile

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DO - 10.1109/TAP.2016.2620607

M3 - 文章

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JF - IEEE Transactions on Antennas and Propagation

IS - 12

M1 - 7636967

ER -

A Wideband High-Gain Cavity-Backed Low-Profile Dipole Antenna

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Keywords

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