Non-reciprocal broadband slot line device

Wave transmission lines and networks – Plural channel systems – Nonreciprocal gyromagnetic type

Patent

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Details

333 242, 333 84R, H01P 138, H01P 136

Patent

active

040272532

ABSTRACT:
A broadband slot line non reciprocal microwave device which comprises a matched load placed on the face of a ferrite plate which is located within the microwave magnetic field of the slot line, said face being opposite to said slot and designed so that its height is larger than 3 times the width of the slot and its length is at least equal to a half wavelength as propagated within the slot at the maximum operating frequency. Said matched load may be a second slot line or a lossy ferrite plate. The device operates as an isolator with more than 20 dB isolation. It can be designed as a four port circulator.

REFERENCES:
patent: 3602845 (1970-01-01), Agrios et al.
patent: 3845413 (1974-10-01), Chiron et al.

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