Publication details
Design of an Impedance-Matched Horn Antenna with Enhanced Directivity Using Conformal Transformation Optics
| Authors | |
|---|---|
| Year of publication | 2020 |
| Type | Article in Proceedings |
| Conference | 2020 14TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP 2020) |
| MU Faculty or unit | |
| Citation | |
| Web | https://ieeexplore.ieee.org/document/9135870 |
| Doi | http://dx.doi.org/10.23919/EuCAP48036.2020.9135870 |
| Keywords | conformal transformation optics; horn antenna; directivity; phase error correction |
| Description | In this work, conformal transformation optics is employed to enhance the directivity of a horn antenna. The phase error at the horn's aperture is mitigated using a dielectric graded-index lens designed by the conformal transformation. The design not only leads to a negligible phase error at the aperture but also has an excellent impedance match to the vacuum. Simulation results show that for a typical horn antenna with length and aperture width equal to ten wavelengths, our method can enhance the directivity more than 5 dB. |