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Equilateral triangular slot antenna for communication system and GNSS RO sensor of GAIA-I microsatellite
Awaludin A.a,b, Tetuko Sri Sumantyo J.a, Ito K.a, Gao S.c, Munir A.d, Zafri Baharuddin M.e, Edi Santosa C.a
a Center for Environmental Remote Sensing (CEReS), Chiba University, Chiba-shi, 263-8522, Japan
b Lembaga Penerbangan Dan Antariksa Nasional (LAPAN), Jakarta, 13220, Indonesia
c Department of Engineering and Digital Arts, University of Kent, Canterbury, CT2 7NZ, United Kingdom
d School of Electrical Engineering and Informatics, Institut Teknologi Bandung, Bandung, 40132, Indonesia
e Department of Electronics and Communication Engineering, Universiti Tenaga Nasional, Selangor, 43000, Malaysia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2018 The Institute of Electronics, Information and Communication Engineers.Two wideband circularly polarized (CP) equilateral triangular slot (ETS) antennas are proposed for communication system and the Global Navigation Satellite System (GNSS) Radio Occultation (RO) sensor of the GAIA-I microsatellite. These wide slot antennas use the ring slot antenna CP generation method due to their shape. The compact antennas employ truncated corners, grounded equilateral triangular perturbation patch and branched feed line to create CP radiation. A 3-dB axial ratio bandwidth (ARBW) enhancement is achieved by inserting a pair of slits into the ETS. A parametric study on the influence of those shape modifications in reflection coefficient and axial ratio is presented. An ETS antenna for communication system of the GAIA-I is fabricated and measured, which is shown to agree well with its simulated performance by providing CP fractional bandwidth of 52%. An ETS antenna designed for the GNSS RO sensor of GAIA-I delivers 3-dB ARBWof 41.6%. The ETS antenna offers uni-directional radiation by mounting a 3D printed truncated cone reflector underneath which also enhances antenna gain.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Axial ratio bandwidth,Global Navigation Satellite Systems,GNSS,Micro satellite,Reflector,Simulated performance,Triangular slot antennas,Wideband antenna[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Circular polarization,GNSS,Microsatellite,Reflector,Slot antenna,Wideband antenna[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][{‘$’: ‘This research is supported in part by the Japan Science and Technology Agency (JST) – Japan International Cooperation Agency (JICA) FY2010-2016 Science and Technology Research Partnership for Sustainable Development (SATREPS); the European Space Agency (ESA) Earth Observation Category 1 under Grant 6613; the 4th Japan Aerospace ExplorationAgency (JAXA)ALOSResearch Announcement under Grant 1024; the 6th JAXA ALOS Research Announcement under Grant 3170; the Japanese Government National Budget – Ministry of Education and Technology (MEXT) FY2015-2017 under Grant 2101; Chiba University Strategic Priority Research Promotion Program FY2016-FY2018; Taiwan National Space Organization (NSPO); and Indonesian National Institute of Aeronautics and Space (LAPAN).’}, {‘$’: ‘This research is supported in part by the Japan Science and Technology Agency (JST) – Japan International Co-operation Agency (JICA) FY2010–2016 Science and Technology Research Partnership for Sustainable Development (SATREPS); the European Space Agency (ESA) Earth Observation Category 1 under Grant 6613; the 4th Japan Aerospace Exploration Agency (JAXA) ALOS Research Announcement under Grant 1024; the 6th JAXA ALOS Research Announcement under Grant 3170; the Japanese Government National Budget – Ministry of Education and Technology (MEXT) FY2015–2017 under Grant 2101; Chiba University Strategic Priority Research Promotion Program FY2016–FY2018; Taiwan National Space Organization (NSPO); and Indonesian National Institute of Aeronautics and Space (LAPAN).’}][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1587/transcom.2017EBP3183[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]