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Effect of truncation shape against axial ratio of left-handed circularly polarized X-band antenna
Kurniawan F.a,b, Sumantyo J.T.S.a, Mujtahidb, 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]© 2017 IEEE.In this paper, an effect of truncation shape of left-handed circularly polarized (LHCP) X-band antenna against its axial ratio is investigated. The antenna which is designed to have the center frequency of 8.2GHz and the axial ratio bandwidth of 400MHz is intended to be implemented for satellite communication. It is deployed on an NPC-H220A dielectric substrate with the dielectric constant of 2.17 and the thickness of 1.6mm. The structure of antenna is constructed of two layer dielectric substrates in which the top side of first layer is for radiation element, then the top side of bottom layer is for feeding line and the bottom side of bottom layer is for groundplane. The truncation is set in the edge of radiation element at 45° from z-axis and 45° from x-axis. The investigation is performed by varying the shape of truncation on radiation element. Three different shapes of truncation, i.e. triangle-shaped, square-shaped, and ellipse-shaped, are applied for investigating the antenna parameter focused on its axial ratio. From the result, it shows that the antenna with ellipse-shaped truncation has the widest axial ratio bandwidth among other shapes ranges from the frequency of 7.89GHz to 8.4GHz.[/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]Antenna parameters,Axial ratio,Axial ratio bandwidth,Circularly polarized,Dielectric substrates,Satellite communications,shape truncation,X bands[/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]Axial ratio,left-handed circularly-polarized (LHCP),shape truncation,X-band 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 work was partially supported by the Japanese Government National Budget, Ministry of Education and Technology (MEXT) FY2015-2017 under Grant 2101; Strategic Priority Research Promotion Program. Chiba University FY2016-FY2018; Instirute of Global Prominent Research, Chiba University FY2016-FY2018; Overseas Research Program, Institut Teknologi Bandung FY2017.[/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/QIR.2017.8168457[/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]