Beamwidth Enhancement of Array Microstrip Antenna for Radio Altimeter Application
Antonius Kota Beoang1, Radial Anwar2, Yuyu Wahyu3

1Antonius Kota Beoang*, School of Applied Science, Telkom University, Bandung, Indonesia.
2Radial Anwar, Research Center for Electronics and Telecommunication Indonesia Institute of Sciences, Bandung, Indonesia.
3Yuyu Wahyu, Research Center for Electronics and Telecommunication Indonesia Institute of Sciences, Bandung, Indonesia.

Manuscript received on September 18, 2019. | Revised Manuscript received on 25 September, 2019. | Manuscript published on October 10, 2019. | PP: 2092-1101 | Volume-8 Issue-12, October 2019. | Retrieval Number: L38801081219/2019©BEIESP | DOI: 10.35940/ijitee.L3880.1081219
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: In this paper, an array microstrip antenna with 2×2 configuration has been simulated and measured for radio altimeter. The goal of this study is to achieve a proper beamwidth for this application with acceptable VSWR. Thus, the spacing between patches has been varied to obtain the beamwidth. The simulation shows the antenna has 50.2 x 60 degrees beamwidth with VSWR of 1.21, where after measurement the antenna has gained VSWR of 1.238, 250.04 MHz bandwidth and beamwidth of ±48 x ±65 degrees.
Keywords:  Beamwidth, Microstrip Array Antenna, Radio Altimeter, VSWR.
Scope of the Article: Microstrip Antenna Design and Application