Dipole uniform circular array backed by a cylindrical reflector

Y. Cai; Y. Jay Guo

Dipole uniform circular array backed by a cylindrical reflector

Y. Cai^*, Y. Jay Guo

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

Abstract

A 12-element thin dipole uniform circular array (UCA) is studied using the Method of Moments. The effect of metallic back reflectors on the array performance, in terms of the maximum realized gain, the mutual coupling level, and the synthesized patterns, is investigated. Over the inter-element spacing range, 0.3 λ₀ ≤ d ≤ 0.7λ₀, simulation results show that the introduction of the cylindrical reflector achieves at least 1.0dB higher the gain than the one without using the reflector. Radial metallic 'partition walls' is proposed to be placed between axially oriented dipoles. The use of the 'partition walls' realizes further gain enhancement and H-plane mutual coupling reduction. At d = 0.4λ₀ and d = 0.6λ₀, maximum coupling between elements is suppressed to a level below -13dB and -20dB respectively when the height of the 'partition walls', h_wall, is greater than 0.175λ₀. In the synthesized realized gain pattern, mainlobe to sidelobe ratio better than 15dB and 13dB is obtained.

Original language	English
Title of host publication	2010 Proceedings of the Fourth European Conference on Antennas and Propagation (EuCAP 2010)
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-5
Number of pages	5
ISBN (Electronic)	9788476534724
ISBN (Print)	9781424464319
Publication status	Published - Apr 2010
Externally published	Yes
Event	4th European Conference on Antennas and Propagation, EuCAP 2010 - Barcelona, Spain Duration: 12 Apr 2010 → 16 Apr 2010

Other

Other	4th European Conference on Antennas and Propagation, EuCAP 2010
Country/Territory	Spain
City	Barcelona
Period	12/04/10 → 16/04/10

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Cite this

@inproceedings{0f05e08deb144d529e165d21dbfcd7b0,

title = "Dipole uniform circular array backed by a cylindrical reflector",

abstract = "A 12-element thin dipole uniform circular array (UCA) is studied using the Method of Moments. The effect of metallic back reflectors on the array performance, in terms of the maximum realized gain, the mutual coupling level, and the synthesized patterns, is investigated. Over the inter-element spacing range, 0.3 λ0 ≤ d ≤ 0.7λ0, simulation results show that the introduction of the cylindrical reflector achieves at least 1.0dB higher the gain than the one without using the reflector. Radial metallic 'partition walls' is proposed to be placed between axially oriented dipoles. The use of the 'partition walls' realizes further gain enhancement and H-plane mutual coupling reduction. At d = 0.4λ0 and d = 0.6λ0, maximum coupling between elements is suppressed to a level below -13dB and -20dB respectively when the height of the 'partition walls', hwall, is greater than 0.175λ0. In the synthesized realized gain pattern, mainlobe to sidelobe ratio better than 15dB and 13dB is obtained.",

author = "Y. Cai and Guo, {Y. Jay}",

year = "2010",

month = apr,

language = "English",

isbn = "9781424464319",

pages = "1--5",

booktitle = "2010 Proceedings of the Fourth European Conference on Antennas and Propagation (EuCAP 2010)",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "4th European Conference on Antennas and Propagation, EuCAP 2010 ; Conference date: 12-04-2010 Through 16-04-2010",

}

Cai, Y & Guo, YJ 2010, Dipole uniform circular array backed by a cylindrical reflector. in 2010 Proceedings of the Fourth European Conference on Antennas and Propagation (EuCAP 2010)., 5504963, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1-5, 4th European Conference on Antennas and Propagation, EuCAP 2010, Barcelona, Spain, 12/04/10. <http://ieeexplore.ieee.org/document/5504963/>

Dipole uniform circular array backed by a cylindrical reflector. / Cai, Y.; Guo, Y. Jay.
2010 Proceedings of the Fourth European Conference on Antennas and Propagation (EuCAP 2010). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2010. p. 1-5 5504963.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

TY - GEN

T1 - Dipole uniform circular array backed by a cylindrical reflector

AU - Cai, Y.

AU - Guo, Y. Jay

PY - 2010/4

Y1 - 2010/4

N2 - A 12-element thin dipole uniform circular array (UCA) is studied using the Method of Moments. The effect of metallic back reflectors on the array performance, in terms of the maximum realized gain, the mutual coupling level, and the synthesized patterns, is investigated. Over the inter-element spacing range, 0.3 λ0 ≤ d ≤ 0.7λ0, simulation results show that the introduction of the cylindrical reflector achieves at least 1.0dB higher the gain than the one without using the reflector. Radial metallic 'partition walls' is proposed to be placed between axially oriented dipoles. The use of the 'partition walls' realizes further gain enhancement and H-plane mutual coupling reduction. At d = 0.4λ0 and d = 0.6λ0, maximum coupling between elements is suppressed to a level below -13dB and -20dB respectively when the height of the 'partition walls', hwall, is greater than 0.175λ0. In the synthesized realized gain pattern, mainlobe to sidelobe ratio better than 15dB and 13dB is obtained.

AB - A 12-element thin dipole uniform circular array (UCA) is studied using the Method of Moments. The effect of metallic back reflectors on the array performance, in terms of the maximum realized gain, the mutual coupling level, and the synthesized patterns, is investigated. Over the inter-element spacing range, 0.3 λ0 ≤ d ≤ 0.7λ0, simulation results show that the introduction of the cylindrical reflector achieves at least 1.0dB higher the gain than the one without using the reflector. Radial metallic 'partition walls' is proposed to be placed between axially oriented dipoles. The use of the 'partition walls' realizes further gain enhancement and H-plane mutual coupling reduction. At d = 0.4λ0 and d = 0.6λ0, maximum coupling between elements is suppressed to a level below -13dB and -20dB respectively when the height of the 'partition walls', hwall, is greater than 0.175λ0. In the synthesized realized gain pattern, mainlobe to sidelobe ratio better than 15dB and 13dB is obtained.

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M3 - Conference proceeding contribution

AN - SCOPUS:77955328668

SN - 9781424464319

SP - 1

EP - 5

BT - 2010 Proceedings of the Fourth European Conference on Antennas and Propagation (EuCAP 2010)

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - Piscataway, NJ

T2 - 4th European Conference on Antennas and Propagation, EuCAP 2010

Y2 - 12 April 2010 through 16 April 2010

ER -

Dipole uniform circular array backed by a cylindrical reflector

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