New topologies of radial-line slot-dipole array antennas

This paper proposes new topologies of linearly polarized radial-line slot-array antennas (LP-RLSA) which uses slot-dipole pairs as radiating elements. Firstly, the basic design of the antenna with cancelling slots is considered and its benefits and drawbacks are highlighted. The evolution of this configuration leads to more convenient arrangements of the radiating and cancelling elements. Finally, a LP-RLSA composed of doubled rings demonstrates to be the most suitable topology for this kind of antennas.