1. P. Yongi, Recent Advances in Quasi-Optical Ferrite Circulator for Millimeter-Wave Applications. J Magn Mater Devices, 29(5) (1998).
2. G. F. Dionne, J. A. Weiss, G. A. Allen, and W. D. Fitzgerald, Quasi-Optical Ferrite Rotator for Millimeters Waves. IEEE MTT-S Digest, 127–130, (1988).
3. E. L. Moore, A 300GHz quasi-optical Faraday rotation isolator. Int. J. Infrared & Millimeter Waves 10, 1317–1325 (1989), Oct.
4. B. Lax, J. A. Weiss, N. W. Harris, and G. F. Dionne, Quasi-Optical Reflection Circulator. IEEE Trans. Microwave Theory Technology 41, 2190–2197 (1993).
5. R. Wylde, Ph.D. Thesis, Queen Mary College, (1985).