Improvement of gain and elevation tilt angle using metamaterial loading for millimeter-wave applications
Elevation-plane beam tilting is demonstrated for a printed dipole antenna operating over 57–64 GHz. This is achieved using a 3x4 array of high refractive-index metamaterial (HRIM) unit cells. The unit cell comprises a modified H-shaped structure with stub loading to control the refractive index of t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
IEEE
2015
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| Subjects: | |
| Online Access: | https://repository.londonmet.ac.uk/1181/7/Improvement%20of%20Gain%20and%20Elevation.pdf https://repository.londonmet.ac.uk/1181/1/IEEE%20lett%202015%20-%20Mehdi.pdf |
| Summary: | Elevation-plane beam tilting is demonstrated for a printed dipole antenna operating over 57–64 GHz. This is achieved using a 3x4 array of high refractive-index metamaterial (HRIM) unit cells. The unit cell comprises a modified H-shaped structure with stub loading to control the refractive index of the unit cell over a finite frequency range. Integration of the 3x4 array in the H-plane of a dipole antenna is shown to deflect the main beam by +30 degrees with respect to the endfire direction over 57–64 GHz. In addition, the proposed technique provides 5 dB gain enhancement. |
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