Investigating small aperture radial line slot array antennas for medium gain communication links

Nishat Yasmin Koli, Muhammad U. Afzal, Karu P. Esselle, Ladislau Matekovits, Md. Zahidul Islam

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

This paper investigates the performance of a relatively small aperture circularly polarized (CP) radial line slot array (RLSA) antenna with medium gain for the Ku-band. The antenna is composed of two parallel metal plates which form a parallel-plate waveguide and supports rotationally symmetric transverse electromagnetic (TEM) travelling wave. The top plate consists of radiating slot elements. The slots are arrayed on the aperture in a way to produce a circularly polarised broadside beam. The antenna was designed at the central operating frequency of 11 GHz having a circular aperture with radius of 90 mm. The predicted results indicated that the return magnitude of reflection coefficient is less than -10 dB in a operating frequency band from 10.5 GHz to 11.5 GHz. The antenna has achieved a peak directivity of 22.4 dBic with a peak gain of 22.1 dBic at 11 GHz. The CP-RLSA antenna has a predicted aperture efficiency of 40%, and a total efficiency of 93% at 11 GHz.

Original languageEnglish
Title of host publicationProceedings of the 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA)
Subtitle of host publicationICEAA '19 21st edition
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages613-616
Number of pages4
ISBN (Electronic)9781728105635, 9781728105628
ISBN (Print)9781728105642
DOIs
Publication statusPublished - 2019
Event21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019 - Granada, Spain
Duration: 9 Sep 201913 Sep 2019

Conference

Conference21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019
CountrySpain
CityGranada
Period9/09/1913/09/19

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Koli, N. Y., Afzal, M. U., Esselle, K. P., Matekovits, L., & Islam, M. Z. (2019). Investigating small aperture radial line slot array antennas for medium gain communication links. In Proceedings of the 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA): ICEAA '19 21st edition (pp. 613-616). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ICEAA.2019.8879073