The influence of V2O5, Fe2O3 and CuO on dielectric permittivity and magnetic permeability properties of MgFe2O4 spinel ferrites are investigated in this study.
Additionally, the effect of phase composition, densification and grain size on permittivity and permeability was also discussed. Several conclusions are stated as follows:
(1) The added dopant V2O5 is an effective low temperature sintering promoter, relative density of 4wt% V2O5-doped MgFe2O4 can be higher than 90% of its theoretical density when sintered at 1000℃ for 2 hours. However, 10wt% CuO-doped MgFe2O4 and 10wt% Fe2O3-doped MgFe2O4 requires 1100℃ and 1200℃ sintering temperature to attain densification of 90%.
(2) The permittivity of MgFe2O4 doped with Fe2O3 increased with increasing sintering temperature and doping amount compared to V2O5 and CuO additives. The εr increases from 15 to 41 for MgFe2O4 doped with 2wt%, 4wt% and 10wt% Fe2O3 at sintering temperature of 1200℃ for 2 hours.
(3) The increase of added CuO content resulted in an increase in permeability for MgFe2O4. The measured permeability values of 10wt% CuO-doped specimens were approximately 12 ~ 15 after sintered at 1200℃ for 2 hours, The permeability of CuO-doped MgFe2O4 is higher than that of V2O5-doped (8) and Fe2O3-doped (6) MgFe2O4.
In this study, the 10wt% CuO-doped MgFe2O4 ceramics have εr =10.9 and μr
=11.8 measured at 10MHz after sintering at 1100℃ for 2 hours, dielectric loss and magnetic loss is 0.06 and 0.02, respectively.
References
[1] C.A. Balanis, “Antenna Theory, Analysis and Design”, John Wiley and Sons, 1997.
[2] Pozar and Schaubert, “Microstrip Antennas,” Proceedings of the IEEE, 80, 1992.
[3] Kyutae Lim, Stephane Pinel et.al, “RF-System-On-Package (SOP) for Wireless Communications,” IEEE microwave magazine, pp. 88-99, March 2002.
[4] J. Laskar, A. Sutono, C. H. Lee, M.F. Davis, A. Obatoyinbo, K. Lim, and M.
Tentzeris, “Development of integrated 3D radio front-end system-onp-ackage (SOP),” Proc. IEEE GaAs IC Symp., Baltimore, MD, pp. 215-218, Oct. 2001.
[5] G. Carchon, K. Vaesen, S. Brebels,W. De Raedt, E.Beyne and B. Nauwelaers,
“Multilayer thin-film MCM-D for the integration of high-performance RF and microwave circuits,” IEEE Trans. Comp. Packag. Technol, 24, pp. 510-519, Sept. 2001.
[6] Pinel. S, Lim. K, Maeng. M, Davis. M. F, Li. R, Tentzeris. M and Laskar. J, “RF System-on-Package (SOP) Development for compact low cost Wireless Front-end systems,” European Microwave Conference, 2002. 32nd, pp.1-4, Oct.
2002.
[7] M.M. Tentzeris et al. “RF SoP for Multi-band RF and Millimeter-wave Systems,” Advanced packaging, pp. 15-16, April 2004.
[8] J. Zhou, D. Hung, M. J. Lancaster, H. T. Su, X. Xiong, “A novel superconducting CPW slow-wave bandpass filter,” Microwave and Optical Technology Letters, 34(4), pp. 255–259, August 2002.
[9] D. H. Schaubert, D. M. Pozar, and A. Adrian, “Effect of microstrip antenna substrate thickness and permittivity: Comparison of theories and experiment,”
IEEE Trans. Antennas Propag., 37(6), pp. 677–682, Jun, 1989.
[10] H. F. Pues and A. R. Van De Capelle, “An impedance-matching technique for increasing the bandwidth of microstrip antennas,” IEEE Trans. Antenna Propag., 37(11), pp. 1345–1354, Nov.1989.
[11] G. Kumar and K. C. Gupta, “Broad-band microstrip antennas using additional resonators gap-coupled to the radiating edges,” IEEE Trans. Antennas Propag., 32(12), pp. 1375–1379, Dec. 1984.
[12] F. Crop and D. M. Pozar, “Millimeter-wave design of wide-band aperture-coupled stacked microstrip antennas,” IEEE Trans, Antennas Propag., 39(12), pp. 1770–1776, Dec. 1991.
[13] Sang-Hyuk Wi, Yong-Bin Sun et.al, “Package-Level integrated antennas based on LTCC technology,”IEEE Trans. Antenna Propag., 54(8), pp. 2190–2197, Aug.
2006.
[14] Sang-Hyuk Wi, Jung-Min Kim et.al, “Bow-tie-shaped meander slot antenna for 5 GHz application,”in Proc. IEEE Int. Symp. Antenna and Propagation, 2(16-21), pp. 456–459, Jun. 2002.
[15] Shih-Huang Yeh, Shyh-Tirng Fang and Kin-Lu Wong, “Dual-band shorted patch antenna for dual ISM-band application,” Microwave and Optical Technology Letters 32(1), pp.79 – 80, January 2002.
[16] Jeen-Sheen Row and Shiao-Wen Wu, “Circularly-Polarized Wide Slot Antenna Loaded With a Parasitic Patch,” IEEE Transactions on Antennas and Propagation, 56(9), pp.2826 – 2832, Sept. 2008.
[17] R. T. Long, R. J. Dorris, S. A. Long, M. A. Khayat, and J. T. Williams,“Use of parasitic strip to produce circular polarization and increased bandwidth for cylindrical dielectric resonator antenna,” Electron. Lett., 37, pp. 406–408, Mar.
2001.
[18] H. K. Ng and K. W. Leung, “Conformal-strip-excited dielectric resonator antenna with a parasitic strip,” IEEE Antennas and Propagation Soc. Int. Symp.
Dig.,4, pp. 2080–2083, Jul. 2000.
[19] Jieh-Sen Kuo1 and Kin-Lu Wong, “A Compact microstrip antenna with Meandering slots in the ground plane,” Microwave and Optical Technology Letters, 29(2), pp. 95–97, April 2001.
[20] K. L. Wong and Y. F, Lin, “Small broadband rectangular microstrip antenna with chip-resistor loading”, Electron. Lett., 33, pp. 1593-1594, 1997.
[21] H. Mosallaei and K. Sarabandi, “Magneto-dielectrics in electromagnetics:
concept and applications,” IEEE Trans. Antennas Propag., 52, pp.1558–1567, 2004.
[22] H. Mosallaei and K. Sarabandi, “Design and modeling of patch antenna printed on magneto-dielectric embedded-circuit metasubstrate” IEEE Trans. Antennas Propag., 55, pp.45-52, 2007.
[23] Matthew N. O. Sadiku, “Elements of Electromagnetics,” Oxford University Press, 3ed 2000.
[24] Petrov, R.V, Tatarenko, A.S.; Srinivasan, G.; Mantese, J.V, “Antenna miniaturization with ferrite-ferroelectric composites,” Microwave and Optical Technology Letters, 50(12), pp. 3154-3157, December 2008.
[25] K. S. Min and T. V. Hong, “Miniaturization of Antenna Using Magneto-Dielectric Materials” Asia-Pacific Conference on Communications, pp.
1-5, August 2006.
[26] Hossein Mosallaei and Kamal Sarabandi, “Engineered meta-substrates for antenna miniaturization,” in Proc. URSI Int. Symp. Electromagn. Theory, Pisa, Italy, pp. 191–193, May 23–27, 2004.
[27] S. Yoon and R. W. Ziolkowski, “Bandwidth of a microstrip patch antenna on a magnetodielectric substrate,” in Proc. IEEE Antennas Propag. Soc. Int. Symp., Columbus, OH, pp. 297–300, Jun. 22–27, 2003.
[28] M. K. Kärkkäinen, S. A. Tretyakov, and P. Ikonen, “PIFA with dispersive material fillings,” Microw. Opt. Technol. Lett., 45(1), pp.5–8, 2005.
[29] A. N. Yusoff,M. H. Abdullah, S. H. Ahmand, S. F. Jusoh, A. A. Mansor, and S.
A. A. Hamid, “Electromagnetic and Absorption Properties of SomeMicrowave Absorbers,” J. Appl. Phys., 92(2), pp. 876–82, 2002.
[30] Z. W. Li, L. F. Chen, and C. K. Ong, “Studies of Static and High-Frequency Magnetic Properties for M-type Ferrite BaFe12-2xCoxZrxO19,” J. Appl. Phys., 92(7) 3902–3907, 2002.
[31] Joint Committee on Powder Diffraction Standards (JCPDS) Powder Diffraction File (PDF); International Centre for Diffraction Data: Newtown Square, PA, 2004.
[32] L. B. Kong, Z. W. Li, G. Q. Lin and Y. B. Gan, “Magneto-dielectric properties of Mg-Cu-Co ferrite ceramics: I.Densification behavior and microstructure development,” J. Am. Ceram. Soc., 90(10), pp.3106-3112, 2007.
[33] L. B. Kong, Z. W. Li, G. Q. Lin and Y. B. Gan, “Magneto-dielectric properties of Mg-Cu-Co ferrite ceramics: II. Electrical, dielectric, and magnetic properties,” J. Am. Ceram. Soc., 90(7), pp.2104-2112, 2007.
[34] Kheng Chuan Chan, Xiao Tian Liew, Ling Bing Kong, Zheng Wen Li, and Guo Qing Lin. “Ni1-xCoxFe1.98O4 Ferrite Ceramics with Promising Magneto-Dielectric Properties,” J. Am. Ceram. Soc., pp.1-6, 2008.
[35] M.L.S. Teo, L.B. Kong, Z.W. Li, G.Q. Lin and Y.B. Gan, “Development of magneto-dielectric materials based on Li-ferrite ceramics I. Densification behavior and microstructure development,” Journal of Alloys and Compounds, 459, pp.557-566, 2008.
[36] M.L.S. Teo, L.B. Kong, Z.W. Li, G.Q. Lin and Y.B. Gan, “Development of magneto-dielectric materials based on Li-ferrite ceramics II. DC resistivity and complex relative permittivity,” Journal of Alloys and Compounds, 459, pp.567-575, 2008.
[37] L. B. Kong, M.L.S.Teo, Z. W. Li, G. Q. Lin, Y. B. Gan, “Development of magneto-dielectric materials based on Li-ferrite ceramics. III. Complex relative permeability and magneto-dielectric properties,” Journal of Alloys and Compounds, 459, pp. 576-582, 2008.
[38] R. C. Hansen and M. Burke, “Antenna with magneto-dielectrics,” Microwave and Opt. Tech. Lett., 26(2), pp. 75-78, July 2000.
[39] David A. Rahdert, William L. Sweet, Fermin O. Tio, Christian Janicki and Dennis M. Duggan,“Measurement of density and calcium in human atherosclerotic plaque and implications for arterial brachytherapy,”
Cardiovascular Radiation Medicine, 1(4), pp. 358-367, 1999.
[40] “Agilent 4291B RF Impedance/Material Analyzer Operation Manual”,5th edition, Agilent Technologies Japan Ltd,2002.N.
[41] Rezlescu and E. Rezlescu, ‘‘Dielectric Properties of Copper Containing Ferrites,’’ Phys. Stat. Sol. (a), 23, pp. 575–82, 1974.
[42] J. T. S. Irvine, A. Huanosta, R. Velenzuela, and A. R. West, “Electrical Properties of Polycrystalline Nickel Zinc Ferrites,” J. Am. Ceram. Soc., 73(3) pp. 729–32, 1990.
[43] C. G. Koops, “On the Dispersion of Resistivity and Dielectric Constant of Some Semiconductors at Audiofrequencies,” Phys. Rev., 83(1), pp. 121–124,1951.
[44] M. T. Johnson and E. G. Visser, “A Coherent Model for the Complex Permeability in Polycrystalline Ferrites,” IEEE Trans. Magn., 26(5), pp.1987–1989, 1990.
[45] T. Nakamura, T. Tsutaoka, and K. Hatakeyama, “Frequency Dispersion of Permeability in Ferrite Composite Materials,” J. Magn. Magn. Mater., 138, pp.
319– 328, 1994.
[46] J. L. Snoek, “Dispersion and Absorption in Magnetic Ferrites at Frequencies above One Mc/s,” Physica, 14(4), pp. 207–17, 1948.