Broad-Band Three-Port and Four-Port Stripline Ferrite Coupled Line Circulators

IEEE Transactions on Microwave Theory and Techniques

Volumn 52, Issue 2, 2004, Pages 625-632

  Queck, Cham Kiong ^a   Davis, Lionel E ^a  

^a UNIVERSITY OF MANCHESTER   (United Kingdom)

Author keywords

Broad band; Circulators; Ferrite coupled line (FCL); Stripline

Indexed keywords

BANDWIDTH; COMPUTER SIMULATION; FABRICATION; FERRITE DEVICES; MAGNETIC PERMEABILITY; MATRIX ALGEBRA; MICROWAVE CIRCULATORS; STRIP TELECOMMUNICATION LINES; TENSORS;

BROAD BAND; CIRCULATORS; FERRITE COUPLED LINE (FCL); STRIPLINES;

SEMICONDUCTOR JUNCTIONS;

EID: 1342329279     PISSN: 00189480     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMTT.2003.822024     Document Type: Article

References (21)

1. J. Mazur and M. Mrozowski, "On the mode coupling in longitudinally magnetized waveguiding structures," IEEE Trans. Microwave Theory Tech., vol. 37, pp. 159-164, Jan. 1989.
2. _, "Nonreciprocal operation of structures comprising a section of coupled ferrite lines with longitudinal magnetization," IEEE Trans. Microwave Theory Tech., vol. 37, pp. 1012-1020, June 1989.
3. J. Mazur, M. Okoniewski, and M. Mrozowski, "Bi-mode propagation in guides containing gyromagnetic medium," J. Electromagn. Waves Applicat., vol. 6, no. 11, pp. 1561-1580, 1992.
4. P. Kwan, H. How, and C. Vittoria, "Nonreciprocal coupling structure of a ferrite loaded dielectric image line guide," IEEE Trans Magn., vol. 28, pp. 3222-3224, Sept. 1992.
5. J. Mazur, "Millimeter-wave three-port finline circulator using distributed coupling effect," IEEE Trans. Microwave Theory Tech., vol. 41, pp. 1067-1070, June-July 1993.
6. C. S. Teoh and L. E. Davis, "Normal-mode analysis of ferrite-coupled lines using microstrips or slotlines," IEEE Trans. Microwave Theory Tech., vol. 43, pp. 2991-2998, Jan. 1995.
7. J. Mazur, P. Kutysz, and A. Cwikla, "Coupled-mode analysis of ferrite microstrip lines," IEEE Microwave Guided Wave Lett., vol. 9, pp. 300-302, Aug. 1999.
8. K. Xie and L. E. Davis, "Nonreciprocity and the optimum operation of ferrite coupled lines," IEEE Trans. Microwave Theory Tech., vol. 48, pp. 562-573, Apr. 2000.
9. _, "Performance of axially-magnetized ferrite coupled lines," Radio Sci., vol. 36, no. 6, pp. 1353-1361, Nov.-Dec. 2001.
10. C. S. Teoh and L. E. Davis, "Design and measurement of microstrip ferrite coupled lines," Int. J. RF Microwave Computer-Aided Eng., vol. 11, no. 3, pp. 121-130, May 2001.
11. C. K. Queck and L. E. Davis, "Microstrip and stripline ferrite coupled line (FCL) circulators," IEEE Trans. Microwave Theory Tech., vol. 50, pp. 2910-2917, Dec. 2002.
12. _, "Dually-magnetised stripline ferrite coupled line (FCL) section," Electron. Lett., vol. 39, no. 5, 6, pp. 439-440, Mar. 2003.
13. C. K. Queck et al., "Performance of stripline-type ferrite coupled line circulators," Int. J. RF Microwave Computer-Aided Eng., vol. 13, no. 3, pp. 172-179, May 2003.
14. H. C. Okean and L. J. Steffek, "Low loss, 3 mm junction circulator," in IEEE MTT-S Int. Microwave Symp. Dig., vol. 1, 1973, pp. 80-82.
15. K. Solbach, "94-GHz 4-port E-plane junction circulator," IEEE Trans. Microwave Theory Tech., vol. MTT-32, pp. 722-724, July 1984.
16. E. K. N. Yung, D. G. Zhang, and R. S. K. Wong, "A novel waveguide Y-junction circulator with a ferrite sphere for millimeter waves," IEEE Trans. Microwave Theory Tech., vol. 44, pp. 454-456, Mar. 1996.
17. E. K. N. Yung, R. S. Chen, K. Wu, and D. X. Wang, "Analysis and development of millimeter-wave waveguide-junction circulator with a ferrite sphere," IEEE Trans. Microwave Theory Tech., vol. 46, pp. 1721-1734, Nov. 1998.
18. D. Pozar, Microwave Engineering, 2nd ed. New York: Wiley, 1998.
19. M. J. Freire, F. Mesa, C. Di Nallo, D. R. Jackson, and A. A. Oliner, "Spurious transmission effects due to the excitation of the bound mode and the continuous spectrum on stripline with an air gap," IEEE Trans. Microwave Theory Tech., vol. 47, pp. 2493-2502, Dec. 1999.
20. D. Nghiem, J. T. Williams, D. R. Jackson, and A. A. Oliner, "Leakage of the dominant mode on stripline with a small air-gap," IEEE Trans. Microwave Theory Tech., vol. 43, pp. 2549-2556, Nov. 1995.
21. P. R. McIsaac, "Bidirectionality in gyrotropic waveguides," IEEE Trans. Microwave Theory Tech., vol. MTT-24, pp. 223-226, Apr. 1976.