Modal considerations for synthesizing the tapering profile of a quadruple-ridged flared horn antenna

@article{Beukman2014ModalCF,
  title={Modal considerations for synthesizing the tapering profile of a quadruple-ridged flared horn antenna},
  author={Theunis S. Beukman and P. Otto Meyer and M. V. Ivashinay and Rob Maaskant and D. I. L. de Villiers},
  journal={2014 International Conference on Electromagnetics in Advanced Applications (ICEAA)},
  year={2014},
  pages={488-491}
}
A technique is proposed to synthesize the ridge taper of a quadruple-ridged flared horn (QRFH) antenna. By considering the modal propagation in the horn it is possible to improve the antenna performance. A QRFH is designed for an offset Gregorian reflector system and produces an aperture efficiency above 50% across the entire operational bandwidth (6:1).