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Experimental Approach of Resonant Frequency Lowering Using ADM for Microstrip Circular Patch Antenna
Ludiyati H.a, Inggrianti I.a, Kartika I.a, Munir A.b
a Department of Electrical Engineering, Politeknik Negeri Bandung, Ciwaruga, Bandung, 40163, Indonesia
b Radio Telecommunication and Microwave Laboratory, School of Electrical Engineering and Informatics, Institut Teknologi Bandung, Bandung, 40132, 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.The high permittivity of dielectric material is required to lower the resonant frequency of the microstrip circular patch antenna. An FR4 epoxy dielectric substrate frequently applied for the antenna deployment results in high losses due to its inherent characteristics, hence this leads to lower the efficiency. In this paper, an experimental approach to lower the resonant frequency of microstrip circular patch antenna by using artificial dielectric material (ADM) made of a modified styrofoam is proposed. By inserting a number of thin conductor wires into the styrofoam as a host material, the relative permittivity of host material could be increased. The electric fields distribution for TMz resonant mode in the microstrip circular patch antenna becomes a reference for placing the thin conductor wires. The result of experimental approach shows that the ADM made of 110 pieces 0.5mm diameter thin conductor wires inserted into a styrofoam could significantly lower the resonant frequency of conventional microstrip circular patch antenna around 48% from 1832.3MHz to 951.2MHz. In other term, there is an increase of effective relative permittivity up to 270%.[/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]Artificial dielectric,Circular patch antenna,Dielectric substrates,Electric fields distributions,Experimental approaches,Inherent characteristics,Relative permittivity,Thin conductors[/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]artificial dielectric material (ADM),microstrip circular patch antenna,resonant frequency,thin conductor wires[/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 is partially supported by the Directorate of Research and Community Service, the General Directorate of Research and Development Strengthening, the Ministry of Research, Technology, and Higher Education of the Republic of Indonesia under the research contract FY 2017 No. 025/SP2HL/LT/DRPM/IV/2017.[/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/RFM.2018.8846509[/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]