Dual junction back-to-back microstrip four-port circulators

Details Dual junction back-to-back microstrip four-port circulators Dual junction back-to-back microstrip four-port circulators

1993-02-08

1994-09-13

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Nonreciprocal gyromagnetic type

333238, H01P 1387

Patent

active

053472411

ABSTRACT:
A dual junction back-to-back four-port microstrip circulator made up of two three-port single junction circulators whose substrates lay back-to-back and are interconnected with a coaxial feedthrough. When used in an active antenna array application, the transmit and receive ports will be located on different levels of the device. The back-to-back configuration allows sharing either a single magnet for biasing or a single magnetic shield carrier for bias return, with a magnet on top of each substrate. The circulator has the advantages of small size and operation over a wide frequency band.

REFERENCES:
patent: 3534296 (1970-10-01), Carr
patent: 4494083 (1985-01-01), Josefsson et al.

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