Abstract
Microstrip antenna is expected to be used as part of satellite data reception system since it is more compact, low profile and lightweight than any conventional antenna. This study proposed development circular microstrip antenna with feed line to be implemented in C-band Himawari-8 satellite data reception system. It started with a single circular microstrip antenna then array <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$2\mathrm{x}2$</tex> . The substrate used is FR-4 with 4.3 dielectric constant, both ground and patch used are copper. The width and length of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$2\mathrm{x}2$</tex> array antenna patch is 94.19 mm and 88.49 mm respectively with radius 9.93 mm. Simulation results show that the <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$2\mathrm{x}2$</tex> array antenna has better performance than single patch antenna although its bandwidth is slightly lower than single patch. In general, the performance value of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$2\mathrm{x}2$</tex> array antenna in simulation has meet the requirements. The gain of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$2\mathrm{x}2$</tex> array antenna reached 12.37 dB which is way higher than single antenna patch. Furthermore, the process could be continued to design <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$4\mathrm{x}4$</tex> array microstrip antenna to get higher gain than <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$2\mathrm{x}2$</tex> array antenna. After that, the design could be fabricated and integrated to parabolic antenna as a replacement of feed horn antenna which is being used currently for C-band Himawari-8 satellite data reception system.
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