Low-Profile Spidron Fractal Dipole Antenna with a Ferrite-Loaded Artificial Magnetic Conductor for Manpack Applications
In this paper, a Spidron fractal dipole antenna with a ferrite-loaded artificial magnetic conductor (AMC) is presented. By applying ferrite composed of nickel–zinc with a high permeability value, a compact AMC that operates in the broadband frequency range within the high-frequency/very-high-frequen...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/24/8843 |
| _version_ | 1797545098660020224 |
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| author | Oh Heon Kwon Keum Cheol Hwang |
| author_facet | Oh Heon Kwon Keum Cheol Hwang |
| author_sort | Oh Heon Kwon |
| collection | DOAJ |
| description | In this paper, a Spidron fractal dipole antenna with a ferrite-loaded artificial magnetic conductor (AMC) is presented. By applying ferrite composed of nickel–zinc with a high permeability value, a compact AMC that operates in the broadband frequency range within the high-frequency/very-high-frequency/ultra-high-frequency (HF/VHF/UHF) bands was designed. A Spidron fractal-shaped dipole antenna with a quasi-self-complementary structure was designed and combined with a miniaturized ferrite-loaded AMC. This allowed the designed AMC-integrated dipole antenna to operate in a wide frequency band, covering the HF/VHF/UHF bands, with low-profile characteristics. A prototype of the proposed Spidron fractal dipole antenna with the AMC was manufactured and measured and found to meet low VSWR (voltage standing wave radios) specifications of <3.5 within the 20–500 MHz bandwidth range. The simulated and measured results are in good agreement. The size of the Spidron fractal dipole antenna with the AMC is 0.03<inline-formula><math display="inline"><semantics><mrow><mspace width="0.166667em"></mspace><mo>×</mo><mspace width="0.166667em"></mspace></mrow></semantics></math></inline-formula>0.026<inline-formula><math display="inline"><semantics><mrow><mspace width="0.166667em"></mspace><mo>×</mo><mspace width="0.166667em"></mspace></mrow></semantics></math></inline-formula>0.001<inline-formula><math display="inline"><semantics><mrow><mspace width="0.166667em"></mspace><msup><mi>λ</mi><mn>3</mn></msup></mrow></semantics></math></inline-formula> relative to the wavelength of the lowest operating frequency. The received power of the Spidron fractal dipole antenna with the AMC was also measured when it was applied to relatively small applications, such as a manpack in this case. |
| first_indexed | 2024-03-10T14:10:38Z |
| format | Article |
| id | doaj.art-4ca001918e2341a9ad70d167e0d796a4 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T14:10:38Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-4ca001918e2341a9ad70d167e0d796a42023-11-21T00:13:08ZengMDPI AGApplied Sciences2076-34172020-12-011024884310.3390/app10248843Low-Profile Spidron Fractal Dipole Antenna with a Ferrite-Loaded Artificial Magnetic Conductor for Manpack ApplicationsOh Heon Kwon0Keum Cheol Hwang1Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 440-746, KoreaDepartment of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 440-746, KoreaIn this paper, a Spidron fractal dipole antenna with a ferrite-loaded artificial magnetic conductor (AMC) is presented. By applying ferrite composed of nickel–zinc with a high permeability value, a compact AMC that operates in the broadband frequency range within the high-frequency/very-high-frequency/ultra-high-frequency (HF/VHF/UHF) bands was designed. A Spidron fractal-shaped dipole antenna with a quasi-self-complementary structure was designed and combined with a miniaturized ferrite-loaded AMC. This allowed the designed AMC-integrated dipole antenna to operate in a wide frequency band, covering the HF/VHF/UHF bands, with low-profile characteristics. A prototype of the proposed Spidron fractal dipole antenna with the AMC was manufactured and measured and found to meet low VSWR (voltage standing wave radios) specifications of <3.5 within the 20–500 MHz bandwidth range. The simulated and measured results are in good agreement. The size of the Spidron fractal dipole antenna with the AMC is 0.03<inline-formula><math display="inline"><semantics><mrow><mspace width="0.166667em"></mspace><mo>×</mo><mspace width="0.166667em"></mspace></mrow></semantics></math></inline-formula>0.026<inline-formula><math display="inline"><semantics><mrow><mspace width="0.166667em"></mspace><mo>×</mo><mspace width="0.166667em"></mspace></mrow></semantics></math></inline-formula>0.001<inline-formula><math display="inline"><semantics><mrow><mspace width="0.166667em"></mspace><msup><mi>λ</mi><mn>3</mn></msup></mrow></semantics></math></inline-formula> relative to the wavelength of the lowest operating frequency. The received power of the Spidron fractal dipole antenna with the AMC was also measured when it was applied to relatively small applications, such as a manpack in this case.https://www.mdpi.com/2076-3417/10/24/8843artificial magnetic conductor (AMC)dipole antennaferriteHF/VHF/UHFlow-profileSpidron fractal |
| spellingShingle | Oh Heon Kwon Keum Cheol Hwang Low-Profile Spidron Fractal Dipole Antenna with a Ferrite-Loaded Artificial Magnetic Conductor for Manpack Applications Applied Sciences artificial magnetic conductor (AMC) dipole antenna ferrite HF/VHF/UHF low-profile Spidron fractal |
| title | Low-Profile Spidron Fractal Dipole Antenna with a Ferrite-Loaded Artificial Magnetic Conductor for Manpack Applications |
| title_full | Low-Profile Spidron Fractal Dipole Antenna with a Ferrite-Loaded Artificial Magnetic Conductor for Manpack Applications |
| title_fullStr | Low-Profile Spidron Fractal Dipole Antenna with a Ferrite-Loaded Artificial Magnetic Conductor for Manpack Applications |
| title_full_unstemmed | Low-Profile Spidron Fractal Dipole Antenna with a Ferrite-Loaded Artificial Magnetic Conductor for Manpack Applications |
| title_short | Low-Profile Spidron Fractal Dipole Antenna with a Ferrite-Loaded Artificial Magnetic Conductor for Manpack Applications |
| title_sort | low profile spidron fractal dipole antenna with a ferrite loaded artificial magnetic conductor for manpack applications |
| topic | artificial magnetic conductor (AMC) dipole antenna ferrite HF/VHF/UHF low-profile Spidron fractal |
| url | https://www.mdpi.com/2076-3417/10/24/8843 |
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