Millimeter wave circulator

Details Millimeter wave circulator Millimeter wave circulator

1987-05-27

1988-12-13

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Nonreciprocal gyromagnetic type

333 241, H01P 139

Patent

active

047913894

ABSTRACT:
A millimeter wave wideband circulator which employs a triangular ferrite prism with symmetrically grooved sides. The prism is configured to support a pair of closely-spaced higher order resonance mode sets which function to enlarge the bandwidth of the circulator and to suppress spurious mode resonances in the center and roll-off portions of the bandpass. The simplicity of the junction design combined with the non-critical alignment requirement of the ferrite prism makes practical the fabrication of a multi-junction millimeter wave circulator in a single integrated housing.

REFERENCES:
patent: 3341789 (1967-09-01), Goodman et al.
patent: 3662291 (1972-05-01), Cotter
patent: 4145672 (1979-03-01), Piotrowski
patent: 4254384 (1981-03-01), Piotrowski et al.
patent: 4638267 (1987-01-01), Holpp
U.S. Government Contract No. F33615-77-C-1120, Entitled "Millimeter Wave Device Development", by W. Piotrowski, K. Louie, M. Mlinar, R. Ebert, S. Schell and C. Sun, Dated Nov. 1981, Report No. AFWAL-TR-81-1199.

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