| Title | Omnidirectional circularly polarized slot antenna fed by a cylindrical waveguide in millimeter band |
| Publication Type | Journal Article |
| Year of Publication | 2007 |
| Authors | Masa-Campos, J. L., J. M. Fernández, and M. Sierra-Pérez |
| Journal | Microwave and Optical Technology Letters |
| Volume | 49 |
| Pagination | 638-642 |
| Date Published | Mar. |
| ISSN | 0895-2477 |
| Keywords | Circular polarization, conformal slotted waveguide array, transversal magnetic mode, waveguide to coaxial transition |
| Abstract | A circularly polarized slotted array antenna is presented. The array is fed by a circular waveguide propagating the TM01, to properly generate the required polarization. An omnidirectional azimuth radiation pattern is obtained, as well as a ?10°/+30° elevation antenna coverage. Low losses are achieved because of the waveguide feed. The slot array is mechanized over the metallic wall of the circular waveguide. Furthermore, the antenna presents a solid and rigid mechanical structure, which guarantees an optimum and repetitive response in a manufacturing process. A prototype antenna has been designed and measured. Satisfactory results have been obtained. The slotted array takes part from a signal detection system centered in 36.85 GHz. |
| URL | http://onlinelibrary.wiley.com/doi/10.1002/mop.22207/abstract |
| DOI | 10.1002/mop.22207 |
