A Wideband Omnidirectional Antenna Array With Low Gain Variation

An omnidirectional antenna array with wide band and low gain variation in the horizontal plane is proposed in this letter. The antenna unit of the array is composed of two vertically arrayed omnidirectional elements and the associated feeding network. 3-D dipoles with vertical arms and parasitic dip...

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Veröffentlicht in:	IEEE antennas and wireless propagation letters 2016-12, Vol.15, p.386-389
Hauptverfasser:	Yu, Yufeng, Xiong, Jiang, Wang, Ren
Format:	Artikel
Sprache:	eng
Schlagworte:	Antenna arrays Antenna measurements Array antenna Arrays Bandwidth Dipole antennas Frequency measurement Gain omnidirectional antenna parasitic dipole
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description	An omnidirectional antenna array with wide band and low gain variation in the horizontal plane is proposed in this letter. The antenna unit of the array is composed of two vertically arrayed omnidirectional elements and the associated feeding network. 3-D dipoles with vertical arms and parasitic dipoles are introduced in the antenna unit to significantly enhance the bandwidth and decrease the gain variation. An array with three vertically installed units is fabricated. Each unit is 120 ° rotated compared to the neighboring one for a lower gain variation. The array exhibits a broad bandwidth of 56.4% (1.54-2.75 GHz) for VSWR ≤ 1.5, a gain around 7 dBi, and a low gain variation around 1.5 dB, which may find applications in base station for wireless communication or spectrum monitoring/jamming systems .
doi_str_mv	10.1109/LAWP.2015.2446757
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The antenna unit of the array is composed of two vertically arrayed omnidirectional elements and the associated feeding network. 3-D dipoles with vertical arms and parasitic dipoles are introduced in the antenna unit to significantly enhance the bandwidth and decrease the gain variation. An array with three vertically installed units is fabricated. Each unit is 120 ° rotated compared to the neighboring one for a lower gain variation. The array exhibits a broad bandwidth of 56.4% (1.54-2.75 GHz) for VSWR ≤ 1.5, a gain around 7 dBi, and a low gain variation around 1.5 dB, which may find applications in base station for wireless communication or spectrum monitoring/jamming systems .</description><identifier>ISSN: 1536-1225</identifier><identifier>EISSN: 1548-5757</identifier><identifier>DOI: 10.1109/LAWP.2015.2446757</identifier><identifier>CODEN: IAWPA7</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Antenna arrays ; Antenna measurements ; Array antenna ; Arrays ; Bandwidth ; Dipole antennas ; Frequency measurement ; Gain ; omnidirectional antenna ; parasitic dipole</subject><ispartof>IEEE antennas and wireless propagation letters, 2016-12, Vol.15, p.386-389</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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The antenna unit of the array is composed of two vertically arrayed omnidirectional elements and the associated feeding network. 3-D dipoles with vertical arms and parasitic dipoles are introduced in the antenna unit to significantly enhance the bandwidth and decrease the gain variation. An array with three vertically installed units is fabricated. Each unit is 120 ° rotated compared to the neighboring one for a lower gain variation. 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subjects	Antenna arrays Antenna measurements Array antenna Arrays Bandwidth Dipole antennas Frequency measurement Gain omnidirectional antenna parasitic dipole
title	A Wideband Omnidirectional Antenna Array With Low Gain Variation
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