A double layer circularly polarised radial line slot array antenna with uniform aperture illumination

Nishat Yasmin Koli; Muhammad U. Afzal; Karu P. Esselle; Raheel M. Hashmi; Md. Zahidul Islam; Sujan Shrestha

doi:10.1109/AMS48904.2020.9059481

A double layer circularly polarised radial line slot array antenna with uniform aperture illumination

Nishat Yasmin Koli, Muhammad U. Afzal, Karu P. Esselle, Raheel M. Hashmi, Md. Zahidul Islam, Sujan Shrestha

School of Engineering

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

3 Citations (Scopus)

Abstract

In this paper, we have designed and investigated a double layer circularly polarised radial line slot array (RLSA) antenna for satellite communication. The antenna is composed of twofold radial waveguide with slots acting as radiating elements on its surface. The radiating slots are arranged in a spiral pattern on the antenna aperture. Every slot has a particular length and position. The slots are oriented in a way to intercept the radial currents on the upper waveguide. The slot lengths were varied to achieve a uniform aperture distribution. The electromagnetic power is fed from center of the lower waveguide. Numerical results show that the antenna is well matched within the operating frequency range. The far-field results indicate a peak directivity of 27 dBi at 20 GHz with a good pattern quality and lower side lobe level of -27.2 dB.

Original language	English
Title of host publication	2020 4th Australian Microwave Symposium (AMS)
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-2
Number of pages	2
ISBN (Electronic)	9781728110493
ISBN (Print)	9781728110509
DOIs	https://doi.org/10.1109/AMS48904.2020.9059481
Publication status	Published - 2020
Event	4th Australian Microwave Symposium, AMS 2020 - Sydney, Australia Duration: 13 Feb 2020 → 14 Feb 2020

Conference

Conference	4th Australian Microwave Symposium, AMS 2020
Country/Territory	Australia
City	Sydney
Period	13/02/20 → 14/02/20

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10.1109/AMS48904.2020.9059481

Cite this

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title = "A double layer circularly polarised radial line slot array antenna with uniform aperture illumination",

abstract = "In this paper, we have designed and investigated a double layer circularly polarised radial line slot array (RLSA) antenna for satellite communication. The antenna is composed of twofold radial waveguide with slots acting as radiating elements on its surface. The radiating slots are arranged in a spiral pattern on the antenna aperture. Every slot has a particular length and position. The slots are oriented in a way to intercept the radial currents on the upper waveguide. The slot lengths were varied to achieve a uniform aperture distribution. The electromagnetic power is fed from center of the lower waveguide. Numerical results show that the antenna is well matched within the operating frequency range. The far-field results indicate a peak directivity of 27 dBi at 20 GHz with a good pattern quality and lower side lobe level of -27.2 dB.",

author = "Koli, {Nishat Yasmin} and Afzal, {Muhammad U.} and Esselle, {Karu P.} and Hashmi, {Raheel M.} and Islam, {Md. Zahidul} and Sujan Shrestha",

year = "2020",

doi = "10.1109/AMS48904.2020.9059481",

language = "English",

isbn = "9781728110509",

pages = "1--2",

booktitle = "2020 4th Australian Microwave Symposium (AMS)",

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

address = "United States",

note = "4th Australian Microwave Symposium, AMS 2020 ; Conference date: 13-02-2020 Through 14-02-2020",

}

Koli, NY, Afzal, MU, Esselle, KP, Hashmi, RM, Islam, MZ & Shrestha, S 2020, A double layer circularly polarised radial line slot array antenna with uniform aperture illumination. in 2020 4th Australian Microwave Symposium (AMS). Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1-2, 4th Australian Microwave Symposium, AMS 2020, Sydney, Australia, 13/02/20. https://doi.org/10.1109/AMS48904.2020.9059481

A double layer circularly polarised radial line slot array antenna with uniform aperture illumination. / Koli, Nishat Yasmin; Afzal, Muhammad U.; Esselle, Karu P. et al.
2020 4th Australian Microwave Symposium (AMS). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2020. p. 1-2.

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

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AU - Koli, Nishat Yasmin

AU - Afzal, Muhammad U.

AU - Esselle, Karu P.

AU - Hashmi, Raheel M.

AU - Islam, Md. Zahidul

AU - Shrestha, Sujan

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N2 - In this paper, we have designed and investigated a double layer circularly polarised radial line slot array (RLSA) antenna for satellite communication. The antenna is composed of twofold radial waveguide with slots acting as radiating elements on its surface. The radiating slots are arranged in a spiral pattern on the antenna aperture. Every slot has a particular length and position. The slots are oriented in a way to intercept the radial currents on the upper waveguide. The slot lengths were varied to achieve a uniform aperture distribution. The electromagnetic power is fed from center of the lower waveguide. Numerical results show that the antenna is well matched within the operating frequency range. The far-field results indicate a peak directivity of 27 dBi at 20 GHz with a good pattern quality and lower side lobe level of -27.2 dB.

AB - In this paper, we have designed and investigated a double layer circularly polarised radial line slot array (RLSA) antenna for satellite communication. The antenna is composed of twofold radial waveguide with slots acting as radiating elements on its surface. The radiating slots are arranged in a spiral pattern on the antenna aperture. Every slot has a particular length and position. The slots are oriented in a way to intercept the radial currents on the upper waveguide. The slot lengths were varied to achieve a uniform aperture distribution. The electromagnetic power is fed from center of the lower waveguide. Numerical results show that the antenna is well matched within the operating frequency range. The far-field results indicate a peak directivity of 27 dBi at 20 GHz with a good pattern quality and lower side lobe level of -27.2 dB.

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BT - 2020 4th Australian Microwave Symposium (AMS)

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ER -

A double layer circularly polarised radial line slot array antenna with uniform aperture illumination

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