Helmholtz antenna, through the dyadic Green equation and the Helmholtz vector equation, as an infinite series of spherical wave functions
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Helmholtz antenna, through the dyadic Green equation and the Helmholtz vector equation, as an infinite series of spherical wave functions
Mon, 17/12/2018 - 14:00
Location:
Speaker:
Konstantinos Kossenas
Affiliation:
Heriot-Watt University and The University of Edinburgh
Synopsis:
The current presentation studies the Helmholtz antenna, through the dyadic Green function and vector Helmholtz equation as an infinite series of spherical wave functions. First, results on its electromagnetic field, radiation, Poynting vector, directivity function and directivity diagrams are presented as well. Secondly, further cases of the antenna are presented, where it assumes different orientations in space. The study concludes with the formulation of a general principle. On the second part of the thesis, the antennas are merged and the impact of their joined contribution on the aforementioned parameters is studied. Further experiments were carried out, in which the antenna's current was modified, either through its amplitude or through its phase.
Biography:
Konstantinos Kossenas finished his BSEE & MSEE degree in Electrical and Computer Engineering from the Aristotle University of Thessaloniki in 2017. He is specialized in Telecommunications and especially in wireless communications, microwave engineering, acoustics and scattering theory. From October 2017 until June 2018 he joint in the Presidential Guard of Greece which belongs to the special military forces. Konstantinos is a visitor scholar at the moment and he is going to start his PhD project on wireless communications on January of 2019 in Engineering School at Heriot Watt.