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A novel technique of broadband circularly polarized microstrip antenna development withsquare ring slot for SAR application
Kurniawan F.a,b, Sumantyo J.T.S.a, Nugroho Y.A.b, Prabowo G.S.b, Munir A.c
a Josaphat Microwave Remote Sensing Laboratory, Center for Environmental Remote Sensing, Graduate School Advanced Integration Science, Chiba University, Chiba, Japan
b Center for Aeronautics Technology, National Institute of Aeronautics and Space, Bogor, Indonesia
c Radio Telecommunication and Microwave Laboratory, School of Electrical Engineering and Informatics, Institut Teknologi Bandung, Bandung, Indonesia
[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 IEEE.This paper presents a novel technique to develop a broadband circularly polarized microstrip antenna by using square ring slot (SRS) for SAR application. The minimum requirements of proposed antenna are 800MHz bandwidth with the resonant frequency at 9.4GHz and workable in circular polarization. To satisfy a broadband bandwidth characteristic, a novel technique, called as SRS technique, is implemented upon the patch radiator. The proposed antenna is designed to produce the left-handed circular polarization (LHCP). It is etched on double layer of NPC-H22A dielectric substrate with the dielectric constant of 2.17 and the thickness of 1.6mm. By implementing SRS technique on the proposed antenna, the bandwidth of axial ratio achieved of 12.7% (8.7GHz-9.9GHz), the impedance bandwidth of 36% (8.5GHz-11.9GHz), and the gain achievement up to 6dBic.[/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]Bandwidth characteristics,Broadband,Circularly polarized microstrip antennas,Dielectric substrates,Impedance bandwidths,LHCP,Minimum requirements,Space-borne SAR[/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]Broadband,LHCP,microstrip antenna,spaceborne SAR.,Synthetic Aperture Radar (SAR)[/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 work was supported in part by the Japanese Government National Budget – Ministry of Education and Technology (MEXT) FY2015-2018 under Grant 2101; the Chiba University Strategic Priority Research Promotion Program FY2016-FY2018; the Chiba University Institute of Global Prominent Research FY2016-FY2018. This research was also supported by the RISET-Pro Program of Ministry of Research, Technology and Higher Education of the Republic of Indonesia and the National Institute of Aeronautics and Space of Indonesia (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/10.1109/CAMA.2018.8530631[/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]