Abstract
Effect of permeability(μ r ), dielectric loss tangent (tan δ e ) and magnetic loss tangent (tan δ m ) of magneto dielectric (MD) substrates, on the microstrip patch antenna gain and area is presented. A parametrical study has been carried out to analyze the antenna characteristics on the MD substrate. An MD substrate with e r = 7, μ r =1.82, tan δ e = 0.005, tan δ m = 0.02 is realized using commercial grade polypropylene and Y-type hexaferrites (YHF). Effect of permeability on the gain and area of the microstrip patch antenna is analyzed for a range of μ Γ from 1 to 15. Microstrip patch antenna on an MD substrate exhibits a gain variation of 2.9dB to 2.08dB for dielectric loss tangent (tan δe) variation from 0.002 to 0.01 and 2.91dB to 0.125dB and magnetic loss tangent (tan δ m ) variation from 0.02 to 0.05.
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