Microwave transmission device having gyromagnetic materials havi

Details Microwave transmission device having gyromagnetic materials havi Microwave transmission device having gyromagnetic materials havi

1983-12-29

1985-01-29

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Nonreciprocal gyromagnetic type

333 241, H01P 1387

Patent

active

044969155

ABSTRACT:
A multi-port microwave device, such as an isolator or circulator, for transmission of electromagnetic energy in TEM mode non-reciprocally between ports. The device exhibits low insertion loss, high return loss (low VSWR) and high isolation and is operable over a 100 percent or more bandwidth. The microwave device includes a composite ferrite body between a circuit conductor and a ground plane. The composite ferrite body includes at least two different types of ferrite material where each one is selected to provide different frequency characteristics over the frequency pass band of the device.

REFERENCES:
patent: 3128439 (1964-04-01), Brown, Jr. et al.
patent: 3295074 (1966-12-01), Carr
patent: 3359510 (1967-12-01), Geiszler
patent: 4122418 (1978-10-01), Nagao
patent: 4186357 (1980-01-01), Forterre et al.

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