Influence of external magnetic biasing on rectangular patch antenna designed on nano-Co/Ni Fe2O4 magnetodielectric substrates

K. Borah; Arunav Phukan; N. S. Bhattacharyya

doi:10.1117/12.2012128

28 January 2013 Influence of external magnetic biasing on rectangular patch antenna designed on nano-Co/Ni Fe₂O₄ magnetodielectric substrates

K. Borah, Arunav Phukan, N. S. Bhattacharyya

Author Affiliations +

Proceedings Volume 8760, International Conference on Communication and Electronics System Design; 876018 (2013) https://doi.org/10.1117/12.2012128
Event: International Conference on Communication and Electronics System Design, 2013, Jaipur, India

Abstract

Microstrip patch antenna is fabricated on a magnetodielectric substrate synthesized using 5% volume fraction of nano-sized cobalt ferrite and nickel ferrite inclusions. The permittivity, Εr and permeability μr, of the tailored substrate is determined by in touch superstrate method and cavity perturbation respectively. The S11 parameters are measured in the frequency range from 8 to 11.5 GHz with varying external magnetic field. Unlike antennas made on bulk ferrites, the antennas on these substrates show very low resonant frequency tenability. An enhancement of return loss from -26dB to-31 dB for CoFe₂O₄/LDPE antenna at 9 GHz and -25dB to -32.5 dB for NiFe₂O₄/LDPE antenna at 10GHz is observed.

Citation Download Citation

K. Borah, Arunav Phukan, and N. S. Bhattacharyya "Influence of external magnetic biasing on rectangular patch antenna designed on nano-Co/Ni Fe₂O₄ magnetodielectric substrates", Proc. SPIE 8760, International Conference on Communication and Electronics System Design, 876018 (28 January 2013); https://doi.org/10.1117/12.2012128

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