Proximity coupled fed wideband printed magneto–electric dipole antenna
Abstract Results are presented fora wideband printed magneto‐electric dipole antenna. The printed electric dipole and reflector are separated by an air‐gap and is fed with a coaxial transmission line and a printed proximity coupled T‐shaped feeding strip. The slot between the electric dipole halves...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-10-01
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| Series: | Electronics Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/ell2.12287 |
| _version_ | 1828878043788083200 |
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| author | Johan Joubert Johann W. Odendaal |
| author_facet | Johan Joubert Johann W. Odendaal |
| author_sort | Johan Joubert |
| collection | DOAJ |
| description | Abstract Results are presented fora wideband printed magneto‐electric dipole antenna. The printed electric dipole and reflector are separated by an air‐gap and is fed with a coaxial transmission line and a printed proximity coupled T‐shaped feeding strip. The slot between the electric dipole halves forms the magnetic dipole radiating aperture. This feeding mechanism allows for good impedance matching at adjacent resonances of the electric and magnetic dipoles to achieve wideband operation. The two printed electric dipole halves are DC shorted to the reflector. The results show that this antenna can operate over a wide bandwidth with good gain, stable unidirectional radiation patterns and low cross polarization. The effect of the air‐gap height and the relative permittivity of the substrate on which the dipole is printed are investigated. Results show that an optimum air‐gap height for a specific substrate permittivity can be determined that will result in a gain with a small variation over the entire impedance bandwidth of the antenna. Simulated as well as measured results are presented for a prototype antenna with a small gain variation and overall dimensions of 1.33λ0 × 1.33λ0 × 0.19λ0. A measured impedance bandwidth of 54% with an average gain of 9.2 dBi is achieved. |
| first_indexed | 2024-12-13T08:57:08Z |
| format | Article |
| id | doaj.art-ffb3749b3670493c917ec21861d46e29 |
| institution | Directory Open Access Journal |
| issn | 0013-5194 1350-911X |
| language | English |
| last_indexed | 2024-12-13T08:57:08Z |
| publishDate | 2021-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj.art-ffb3749b3670493c917ec21861d46e292022-12-21T23:53:15ZengWileyElectronics Letters0013-51941350-911X2021-10-01572283383510.1049/ell2.12287Proximity coupled fed wideband printed magneto–electric dipole antennaJohan Joubert0Johann W. Odendaal1Department of Electrical, Electronic and Computer Engineering University of Pretoria Pretoria South AfricaDepartment of Electrical, Electronic and Computer Engineering University of Pretoria Pretoria South AfricaAbstract Results are presented fora wideband printed magneto‐electric dipole antenna. The printed electric dipole and reflector are separated by an air‐gap and is fed with a coaxial transmission line and a printed proximity coupled T‐shaped feeding strip. The slot between the electric dipole halves forms the magnetic dipole radiating aperture. This feeding mechanism allows for good impedance matching at adjacent resonances of the electric and magnetic dipoles to achieve wideband operation. The two printed electric dipole halves are DC shorted to the reflector. The results show that this antenna can operate over a wide bandwidth with good gain, stable unidirectional radiation patterns and low cross polarization. The effect of the air‐gap height and the relative permittivity of the substrate on which the dipole is printed are investigated. Results show that an optimum air‐gap height for a specific substrate permittivity can be determined that will result in a gain with a small variation over the entire impedance bandwidth of the antenna. Simulated as well as measured results are presented for a prototype antenna with a small gain variation and overall dimensions of 1.33λ0 × 1.33λ0 × 0.19λ0. A measured impedance bandwidth of 54% with an average gain of 9.2 dBi is achieved.https://doi.org/10.1049/ell2.12287Dielectric permittivitySingle antennasAntenna arraysAntenna accessories |
| spellingShingle | Johan Joubert Johann W. Odendaal Proximity coupled fed wideband printed magneto–electric dipole antenna Electronics Letters Dielectric permittivity Single antennas Antenna arrays Antenna accessories |
| title | Proximity coupled fed wideband printed magneto–electric dipole antenna |
| title_full | Proximity coupled fed wideband printed magneto–electric dipole antenna |
| title_fullStr | Proximity coupled fed wideband printed magneto–electric dipole antenna |
| title_full_unstemmed | Proximity coupled fed wideband printed magneto–electric dipole antenna |
| title_short | Proximity coupled fed wideband printed magneto–electric dipole antenna |
| title_sort | proximity coupled fed wideband printed magneto electric dipole antenna |
| topic | Dielectric permittivity Single antennas Antenna arrays Antenna accessories |
| url | https://doi.org/10.1049/ell2.12287 |
| work_keys_str_mv | AT johanjoubert proximitycoupledfedwidebandprintedmagnetoelectricdipoleantenna AT johannwodendaal proximitycoupledfedwidebandprintedmagnetoelectricdipoleantenna |