Hybrid mode matching and auxiliary sources technique for horn antenna analysis

S. G. Diamantis, A. P. Orfanidis, G. A. Kyriacou, J. N. Sahalos

Research output: Contribution to journalArticlepeer-review


A hybrid technique for the analysis of horn antennas is described based on a rigorous description of the horn aperture-free space discontinuity. The transition from the feeding waveguide to the radiating aperture is analyzed by using the mode matching technique (MMT) employing a stepped-waveguide approach. The discontinuity between the horn aperture and the free space is modeled by combining the method of auxiliary sources with the MMT for the stepped waveguide section. Results for the input standing wave ratio are given and compared with the available measurements, which demonstrate the very good performance of the method

Original languageEnglish
Pages (from-to)734-739
Number of pages6
JournalMicrowave and Optical Technology Letters
Issue number3
Publication statusPublished - Mar 2007


  • Auxiliary sources
  • Horn antennas
  • Horn aperture discontinuity
  • Love's equivalence principle
  • Mode matching technique


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