Hostname: page-component-7479d7b7d-8zxtt Total loading time: 0 Render date: 2024-07-11T04:23:34.479Z Has data issue: false hasContentIssue false
  • English
  • Français

Planar Ferrite Materials for Millimeter-Wave Applications

Published online by Cambridge University Press:  10 February 2011

Stephen W. McKnight ,
Steven A. Oliver ,
Hoton How  and
Carmine Vittoria
Stephen W. McKnight
Affiliation:
Department of Electrical and Computer Engineering, Northeastern University, Boston, MA 02115 U.S.A. Center for Electromagnetics Research, Northeastern University, Boston, MA 02115 U.S.A.
Steven A. Oliver
Affiliation:
Center for Electromagnetics Research, Northeastern University, Boston, MA 02115 U.S.A.
Hoton How
Affiliation:
EMA Corp., Boston, MA USA
Carmine Vittoria
Affiliation:
Department of Electrical and Computer Engineering, Northeastern University, Boston, MA 02115 U.S.A. EMA Corp., Boston, MA USA
Get access

Abstract

Transferred-film technology provides a path to the integration of self-biased hexaferrite film devices into MMIC circuits. While progress is being made on the growth of thick oriented films of barium hexaferrite doped with aluminum and scandium by pulsed laser deposition or liquidphase epitaxy, we have demonstrated prototype devices using available yttrium-iron-garnet films and thinned bulk hexaferrites. Insertion losses less than 2dB and isolation greater than 20dB have been demonstrated, and theoretical modeling indicates that insertion losses less than 0.5 dB are accessible with optimized materials and through matching the active circuit components to the ferrite device. The prospects of accessing ferrite non-reciprocal, non-linear, and tunable functions at frequencies up to and exceeding 100 GHz through devices integrated onto microwave IC substrates without the use of DC biasing magnets are the driving force of this research.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 631: Symposium AA – Millimeter-/Submillimeter-Wave Technology Materials, Devices and Diagnostics , 2000 , AA2.4
Copyright
Copyright © Materials Research Society 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Wu, Y. S. and Rosenbaum, F. J., “Wideband operation of microstrip circulators,” IEEE Trans. MTT, vol. MTT-22, pp. 849–856 (1974).Google Scholar
2. Schloemann, E. F., “Circulators for microwave and millimeter-wave integrated circuits,” Proc. of the IEEE, vol. 76, p188–200 (1988).Google Scholar
3. Riddle, A., “Ferrite and wire baluns with under 1dB loss to 2.5 GHz,” IEEE MTT-S Digest, Vol. 2, p. 617 (1998)Google Scholar
4. Adam, J. D., Buhay, H., Daniel, M. R., Doyle, N. J., Driver, M. C., Eldridge, G. W., Hanes, M. H., Messham, R. L., and Sopira, M., “Thick yttrium iron garnet films produced by pulsed laser deposition for integration applications,” IEEE Trans. on Magnetics, vol. 36, p3832 (1995).Google Scholar
5. Oliver, S. A., Zavracky, P. M., McGruer, N. E., and Schmidt, R., “A monolithic single-crystal yttrium iron garnet/silicon X-band circulator,” IEEE Microwave and Guided Waves Letters, vol. 7, p239(1997).Google Scholar
6. McClelland, R. W., Boslet, C. O., and Fan, J. C., “A technique for producing epitaxial films on reusable substrates,” Appl. Phys. Lett., vol. 37, p15 (1980).Google Scholar
7. Dingle, D. B., Spitzer, M. B., McClelland, R. W., Fan, J.C.C., and Zavracky, P. M., “Monolithic integration of a light-emitting diode array and a silicon circuit using transfer processes,” Appl. Phys. Lett. 62, p31(1993).Google Scholar
8. Vittoria, C., Microwave Properties of Magnetic Films (World Scientific, Singapore) 1993.Google Scholar
9. Bosma, H., “On stripline Y-circulation at UHF,” IEEE Trans. MTT, vol. MTT-12, pp. 61–72 (1964).Google Scholar
10. Neidert, R. E. and Phillips, P. M., “Losses in Y-junction stripline and microstrip ferrite circulators,” IEEE Trans. MTT, vol. 41, pp. 1081–1086 (1993).Google Scholar
11. Krowne, C. M., and Neidert, R. E., “Theory and numerical calculations for radially inhomogeneous circular ferrite circulators,” IEEE Trans. MTT, vol. 44, p419–431 (1996).Google Scholar
12. How, H., Fang, T. M., Vittoria, C., and Schmidt, R., “Losses in stripline/microstrip circulators,” IEEE Trans. MTT, vol MTT-46, pp. 543–545 (1998).Google Scholar
13. How, H., Oliver, S. A., McKnight, S. W., Zavracky, P. M., McGruer, N. E., and Vittoria, C., “Theory and experiment of thin-film junction circulators,” IEEE Trans. MTT, vol. MTT-47, pp. 1645–1653 (1998).Google Scholar
14. How, H., Oliver, S. A., McKnight, S. W., Zavracky, P. M., McGruer, N. E., Vittoria, C., Schmidt, R., “Influence of nonuniform magnetic field on a ferrite junction circulator,” IEEE Trans. MTT, vol. MTT-47, pp1982–1989 (1999).Google Scholar
15. Roschmann, P., Lemke, H., Tolksdorf, W., and Welz, F., Mat. Res. Bull. Vol. 19, p385 (1984).Google Scholar
16. Oliver, S. A., Shi, P., Hu, W., How, H., McKnight, S. W., McGruer, N. E., Zavracky, P. M., and Vittoria, C., “Integrated self-biased hexaferrite microstrip circulators for millimeter-wavelength applications,” IEEE Trans. MTT, vol. MTT-48, 2000.Google Scholar
17. Oliver, S. A., Yoon, S. D., Moulin, I., Chen, M. L., and Vittoria, C., “Growth and characterization of thick oriented barium hexaferrite films on MgO (111) substrates,” Appl. Phys. Lett., May, 2000.Google Scholar
18. Jojima, H., in “Ferromagnetic Material, vol. 3”, Wolfarth, E. P., ed. (North-Holland, Amsterdam) 1982.Google Scholar