Analysis and design of a four-element superdirective compact dipole antenna array
| Auteurs | Clemente A., Jouanlanne C., Delaveaud C. |
| Year | 2017-0246 |
| Source-Title | 2017 11th European Conference on Antennas and Propagation, EUCAP 2017 |
| Affiliations | CEA-LETI, Minatec Campus, 17 rue des Martyrs, Grenoble, France, Grenoble-Alpes University, Grenoble, France |
| Abstract | This paper presents the design, optimization and experimental characterization of a four-element superdirective array based on a folded meandered dipole element. The proposed array is composed of an active and three parasitic elements. The optimal impedance loads associated to each parasitic elements have been extracted using an ad-hoc synthesis method based on spherical wave expansion. In order to optimize the realized gain, a printed balun has been integrated on the active element. A maximum directivity of 10.0 dBi and a realized gain equal to 0.82 dBi have been respectively demonstrated at 861 MHz when the element spacing is fixed to 0.15?. © 2017 IEEE. |
| Author-Keywords | compact antenna, end-fire array, folded dipole, parasitic element antenna array, spherical wave expansion, superdirective array, superdirectivity |
| Index-Keywords | Antennas, Dipole antennas, Compact antenna, End-fire array, Folded dipoles, Parasitic element, Spherical wave expansion, Superdirective arrays, Superdirectivity, Antenna arrays |
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