This paper investigates the instrumentation necessary to analyze
frequency-dependent complex parameters of solid magnetic materials based on T/R
based waveguide measurement technique proposed by W. B. Weir. Based on magnitude
and phase values of transmission and reflection coefficients measured using vector
network analyzer, complex permittivity and permeability are calculated using the
... read moreexpressions defined. Equations necessary for calculating the complex parameters as
a function of frequency with required step size are derived from the experimental
results. To validate mathematical expressions developed for composite magnetic
materials, design of a compact 2-18GHz Cavity Backed Spiral Antenna using
off-the-shelf magnetic materials is presented. The electrical performance of the
cavity along with stack of high contrast magnetic materials of varying dimensions
are modeled and simulated in Ansys HFSS software. (c) 2019
IEEE.read less
R. Durbha and M. N. Afsar, "Miniaturization Techniques Using Magnetic Materials for Broadband Antenna Applications," IEEE Transactions on Magnetics, vol. 55, no. 7, pp. 1-7, Jul. 2019. DOI: 10.1109/TMAG.2019.2894644.
