Compact Broadband Omnidirectional Radiation Pattern Printed Dipole Antenna Incorporated With Split-Ring Resonators
A broadband, low-profile, compact, and cost-effective antenna consisting of a printed dipole loaded with split-ring resonators (SRRs) is presented. The antenna consists of two identical printed SRRs, each enclosing an arm of a printed dipole element. Each SRR and the center-fed half-wavelength dipol...
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8456842/ |
| _version_ | 1819008861960404992 |
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| author | Kam Eucharist Kedze Heesu Wang Ikmo Park |
| author_facet | Kam Eucharist Kedze Heesu Wang Ikmo Park |
| author_sort | Kam Eucharist Kedze |
| collection | DOAJ |
| description | A broadband, low-profile, compact, and cost-effective antenna consisting of a printed dipole loaded with split-ring resonators (SRRs) is presented. The antenna consists of two identical printed SRRs, each enclosing an arm of a printed dipole element. Each SRR and the center-fed half-wavelength dipole element are printed on the top and bottom sides of a thin dielectric substrate. The dipole is excited by a coaxial feed, while the SRRs are electromagnetically coupled to the dipole. The dipole, in conjunction with the SRRs, generates three resonant modes with stable omnidirectional radiation patterns. These resonances interact to provide broadband characteristics, that is, a measured impedance bandwidth covering 1.32–2.46 GHz for a reflection coefficient of less than −10 dB. The functionalities, mechanisms, and modes of operation of the composite antenna structure are discussed in relation to both the dipole and the SRRs. A prototype is fabricated and measured in order to validate the antenna design. It is computationally and experimentally confirmed that the antenna demonstrates broadband characteristics as well as a stable gain with non-deteriorating omnidirectional radiation patterns. The compact antenna, which has the overall dimensions of 9.6 mm <inline-formula> <tex-math notation="LaTeX">$\times$ </tex-math></inline-formula> 74.4 mm <inline-formula> <tex-math notation="LaTeX">$\times$ </tex-math></inline-formula> 0.508 mm (<inline-formula> <tex-math notation="LaTeX">$0.06\lambda \times 0.469\lambda \times 0.0032\lambda$ </tex-math></inline-formula> at 1.895 GHz), has a measured fractional bandwidth of 60.31%, an omnidirectional radiation pattern with a gain greater than 1.8 dBi, and a radiation efficiency greater than 88% within a broad impedance bandwidth. The compact size, simple structure, and stable radiation properties of the antenna render it suitable for many wireless communication applications. |
| first_indexed | 2024-12-21T00:47:12Z |
| format | Article |
| id | doaj.art-f7164c40ce4a4ae498c5d59b375e9c7b |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-21T00:47:12Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-f7164c40ce4a4ae498c5d59b375e9c7b2022-12-21T19:21:30ZengIEEEIEEE Access2169-35362018-01-016495374954510.1109/ACCESS.2018.28689898456842Compact Broadband Omnidirectional Radiation Pattern Printed Dipole Antenna Incorporated With Split-Ring ResonatorsKam Eucharist Kedze0Heesu Wang1Ikmo Park2https://orcid.org/0000-0002-0051-8614Department of Electrical and Computer Engineering, Ajou University, Suwon, South KoreaDepartment of Electrical and Computer Engineering, Ajou University, Suwon, South KoreaDepartment of Electrical and Computer Engineering, Ajou University, Suwon, South KoreaA broadband, low-profile, compact, and cost-effective antenna consisting of a printed dipole loaded with split-ring resonators (SRRs) is presented. The antenna consists of two identical printed SRRs, each enclosing an arm of a printed dipole element. Each SRR and the center-fed half-wavelength dipole element are printed on the top and bottom sides of a thin dielectric substrate. The dipole is excited by a coaxial feed, while the SRRs are electromagnetically coupled to the dipole. The dipole, in conjunction with the SRRs, generates three resonant modes with stable omnidirectional radiation patterns. These resonances interact to provide broadband characteristics, that is, a measured impedance bandwidth covering 1.32–2.46 GHz for a reflection coefficient of less than −10 dB. The functionalities, mechanisms, and modes of operation of the composite antenna structure are discussed in relation to both the dipole and the SRRs. A prototype is fabricated and measured in order to validate the antenna design. It is computationally and experimentally confirmed that the antenna demonstrates broadband characteristics as well as a stable gain with non-deteriorating omnidirectional radiation patterns. The compact antenna, which has the overall dimensions of 9.6 mm <inline-formula> <tex-math notation="LaTeX">$\times$ </tex-math></inline-formula> 74.4 mm <inline-formula> <tex-math notation="LaTeX">$\times$ </tex-math></inline-formula> 0.508 mm (<inline-formula> <tex-math notation="LaTeX">$0.06\lambda \times 0.469\lambda \times 0.0032\lambda$ </tex-math></inline-formula> at 1.895 GHz), has a measured fractional bandwidth of 60.31%, an omnidirectional radiation pattern with a gain greater than 1.8 dBi, and a radiation efficiency greater than 88% within a broad impedance bandwidth. The compact size, simple structure, and stable radiation properties of the antenna render it suitable for many wireless communication applications.https://ieeexplore.ieee.org/document/8456842/Broadband antennascompactcomposite antennasdipole antennasomnidirectional radiation patternsplit-ring resonator (SRR) |
| spellingShingle | Kam Eucharist Kedze Heesu Wang Ikmo Park Compact Broadband Omnidirectional Radiation Pattern Printed Dipole Antenna Incorporated With Split-Ring Resonators IEEE Access Broadband antennas compact composite antennas dipole antennas omnidirectional radiation pattern split-ring resonator (SRR) |
| title | Compact Broadband Omnidirectional Radiation Pattern Printed Dipole Antenna Incorporated With Split-Ring Resonators |
| title_full | Compact Broadband Omnidirectional Radiation Pattern Printed Dipole Antenna Incorporated With Split-Ring Resonators |
| title_fullStr | Compact Broadband Omnidirectional Radiation Pattern Printed Dipole Antenna Incorporated With Split-Ring Resonators |
| title_full_unstemmed | Compact Broadband Omnidirectional Radiation Pattern Printed Dipole Antenna Incorporated With Split-Ring Resonators |
| title_short | Compact Broadband Omnidirectional Radiation Pattern Printed Dipole Antenna Incorporated With Split-Ring Resonators |
| title_sort | compact broadband omnidirectional radiation pattern printed dipole antenna incorporated with split ring resonators |
| topic | Broadband antennas compact composite antennas dipole antennas omnidirectional radiation pattern split-ring resonator (SRR) |
| url | https://ieeexplore.ieee.org/document/8456842/ |
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