Effects of tapering the near-field distribution of circularly polarised radial line slot array antennas

Mst. Nishat Yasmin Koli, Muhammad U. Afzal, Karu Esselle, Md Zahidul Islam

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

2 Citations (Scopus)

Abstract

In this paper we investigated the effect of tapering the electric near-field distributions of circularly polarised radial line slot array (CP-RLSA) antennas. Two CP-RLSA antennas were designed; the first one has a tapered amplitude distribution and the second one has a uniform amplitude distribution. Each of the antennas has several thousands of radiating slots on the top surface. The two field distributions were obtained by manipulating the slot lengths based on a slot coupling analysis. The RLSA antenna with a nearly uniform amplitude distribution has a gain of 34.5 dBic and 3-dB gain bandwidth of 8%, whereas the RLSA with the tapered amplitude distribution has a lower sidelobe level of -26 dB.

Original languageEnglish
Title of host publication2018 IEEE Antennas and Propagation Society International Symposium
Subtitle of host publicationproceedings
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages171-172
Number of pages2
ISBN (Electronic)9781538671023, 9781538671016
ISBN (Print)9781538671030
DOIs
Publication statusPublished - 2018
Event2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Boston, United States
Duration: 8 Jul 201813 Jul 2018

Publication series

Name
ISSN (Print)1522-3965
ISSN (Electronic)1947-1491

Conference

Conference2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018
CountryUnited States
CityBoston
Period8/07/1813/07/18

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Cite this

Yasmin Koli, M. N., Afzal, M. U., Esselle, K., & Islam, M. Z. (2018). Effects of tapering the near-field distribution of circularly polarised radial line slot array antennas. In 2018 IEEE Antennas and Propagation Society International Symposium: proceedings (pp. 171-172). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/APUSNCURSINRSM.2018.8608638