Abstract
The magneto-dielectric Mg-Nd-Cd spinel ferrites with chemical formula MgxCd1−xNd0.03Fe1.97O4 (x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0) was synthesized by oxalate co-precipitation method under microwave sintering. The electromagnetic input parameters of these ferrites required for design of antennas were investigated in the X-band range. The miniaturization factor found to be highest for composition x = 0.4. The lower dielectric losses and magnetic losses for all compositions of ferrite material were useful for miniaturization of antenna. The patches of silver material were printed on fabricated substrates by using screen printing technique. The performance of return loss, % bandwidth and VSWR indicates that Mg-Nd-Cd ferrite substrates with compositions x = 0.2, 0.8 will have a strength for application as substrates of MPA in X-band microwave communication.
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