C-axis Oriented Polycrystalline BaFe12-xCoxO19 (x = 0, 0.3, 0.6, 0.9) for Millimeter Wave Self-biased Circulator at Ka Band

Jianfeng Chen; Yingli Liu; Qisheng Yin

doi:10.54097/hset.v35i.7025

Authors

Jianfeng Chen
Yingli Liu
Qisheng Yin

DOI:

https://doi.org/10.54097/hset.v35i.7025

Keywords:

Hexaferrite; Circulator; Millimeter Microwave Device; Full-duplex.

Abstract

The anisotropic hexagonal magnetic material is prepared using conventional ceramic process. The high magnetic anisotropy field of hexagonal is essential to extend the device bandwidth for circulator operating at millimeter wave band. The modified hexagonal BaFe_12-xCo_xO₁₉ with about 9 kOe anisotropy field and its Electromagnetic property are presented. And a simulation certificating the circulator at Ka-band is given at the end of the paper.

Downloads

Download data is not yet available.

References

J.A. Weiss, N.G. Watson and G.F. Dionne, "New uniaxial-ferrite millimeter-wave junction circulators", Microwave, MTT-S International Symposium, Long Beach, CA, USA, 1989, p. 145-148.

V.G. Harris and A.S. Sokolov, "The Self-Biased Circulator: Ferrite Materials Design and Process Considerations", Journal of Superconductivity and Novel Magnetism, Vol.32 (2018) No.1, pp.97-108.

Q. Liu, T. Ben, L. Chen and L. Jing, "C-axis oriented polycrystalline BaNi2GdxFe16-xO27 (x = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5) for the application of self-biased circulator at K band", Journal of the European Ceramic Society, Vol.41 (2021) No.15, pp.7717-7722.

Y. Chen, M.J. Nedoroscik, A.L. Geiler, C. Vittoria and V.G. Harris, "Perpendicularly Oriented Polycrystalline BaFe11.1Sc0.9O19Hexaferrite with Narrow FMR Linewidths", Journal of the American Ceramic Society, Vol.91 (2008) No.9, pp.2952-2956.

C. Jianfeng, L. Yingli and Y. Qisheng, "Computational and experimental study on cation distribution of Cobalt substituted barium hexaferrites BaFe12−xCoxO19 (x = 0, 0.3, 0.6, 0.9) for circulator applications", Journal of Alloys and Compounds, Vol.891, (2022) No.25 ,pp. 161917.

Y.S. Wu and F.J. Rosenbaum, "Wide-Band Operation of Microstrip Circulators", IEEE Transactions on Microwave Theory and Techniques, vol.22 (1974) No.10, pp.849-856.