Title :
Eigenmode expansion and mode-matching analysis of Bessel beam launchers
Author :
Jason D. Heebl;Anthony Grbic
Author_Institution :
Radiation Laboratory, Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, 48109-2122 USA
fDate :
7/1/2015 12:00:00 AM
Abstract :
It was recently shown that a leaky radial waveguide can produce a propagating Bessel beam in free space. Two such waveguides can be coupled such that the fields are tightly confined in free space. Analysis of such a coupled system is presented here. Eigenmode expansion is applied to the leaky-waveguides, and mode-matching is performed. Computations show close agreement with simulation results of a commercial Finite Element Method (FEM) solver.
Keywords :
"Resonant frequency","Electromagnetic waveguides","Transmission line matrix methods","Finite element analysis","Antenna arrays","Apertures"
Conference_Titel :
Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2015 IEEE International Symposium on
DOI :
10.1109/APS.2015.7305243
