On artificial magnetodielectric loading for improving the impedance bandwidth properties of microstrip antennas

By P. Ikonen, Stanislav Maslovski, C. Simovski, Sergei A. Tretyakov. IEEE Transactions on Antennas and Propagation, 2005

160 citations recorded by the source corpus.

The effect of artificial magnetodielectric substrates on the impedance bandwidth properties of microstrip antennas is discussed. We review the results found in the literature and then focus on practically realizable artificial magnetic media operating in the microwave regime. Next, a realistic dispersive behavior of a practically realizable artificial substrate is embedded into the model. It is shown that frequency dispersion of the substrate plays a very important role in the impedance bandwidth characteristics of the loaded antenna. The impedance bandwidths of reduced size patch antennas loaded with dispersive magnetodielectric substrates and high-permittivity substrates are compared. It is shown that unlike substrates with dispersion-free permeability, practically realizable artificial substrates with dispersive magnetic permeability are not advantageous in antenna miniaturization. This conclusion is experimentally validated.

Subfields: Aerospace Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/b7196bdc02b8a98702e36bf60124eda33745962f

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In Aerospace Engineering

In Electronic, Optical and Magnetic Materials

Citations in the corpus

Thin perfect absorbers for electromagnetic waves: Theory, design, and realizations (2015, background): “However, the bandwidth of absorbers [15] and material-filled small antennas [102] is determined by the static (zero frequency) value of the permeability.”
Broadband monopole antenna with split ring resonator loaded substrate for good impedance matching (2014, background): “The important feature of the proposed antenna is the capability of providing impedance matching over a wide band of frequencies using single unit cell than already reported [14].”
Design and Modeling of Patch Antenna Printed on Magneto-Dielectric Embedded-Circuit Metasubstrate (2007, background): “Very close to the resonance the permeability is very large, but since it is in the resonance region of the structure, the bandwidth of material itself is very narrow, and again an enhancement in the antenna bandwidth cannot be established [15].”