Abstract

Microstrip antenna is an antenna that has a compact and planar shape with a relatively small size, unfortunately, this kind of antenna could work in narrow bandwidth (1-5%) only. A wideband antenna is an antenna that has a bandwidth of more than 20% from all bands. Vivaldi antenna is one of the antenna that have the possibility to work in wideband. Vivaldi has various structures of feeding so that the Vivaldi antenna design process becomes difficult to do. In this research, a simulation and measurement of various structures of Vivaldi antenna feeding forms is conducted and compared. Changes in Coplanar Vivaldi Antenna feeding structure greatly affect the antenna dimensions. The addition of patches at the end of feeding in the form of shell and circle feeding structure with radius of 6 mm causes the horizontal feeding length increase by 5 mm and the height of vertical feeding decreases by 3 mm to obtain the simulation and measurement results target. Each feeding structure has different performance effects on the simulated parameters. The pattern of shell structure feeding has the best performance with an average return loss of -15.2902 dB, 1, 441 VSWR and input impedance that closest to 50Ω which is 51.66Ω, but the other two patterns can also work optimally on the target parameters.

Original languageEnglish
Title of host publicationProceedings - 2019 International Seminar on Intelligent Technology and Its Application, ISITIA 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages13-18
Number of pages6
ISBN (Electronic)9781728137490
DOIs
Publication statusPublished - Aug 2019
Event2019 International Seminar on Intelligent Technology and Its Application, ISITIA 2019 - Surabaya, Indonesia
Duration: 28 Aug 201929 Aug 2019

Publication series

NameProceedings - 2019 International Seminar on Intelligent Technology and Its Application, ISITIA 2019

Conference

Conference2019 International Seminar on Intelligent Technology and Its Application, ISITIA 2019
Country/TerritoryIndonesia
CitySurabaya
Period28/08/1929/08/19

Keywords

  • Vivaldi antenna
  • feeding techniques
  • microstrip antenna

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