Tyco Electronics Corporation

M/a -com, Inc.

George Hempel

Raymond G Jussaume

James Paul Kingston

An above resonance circulator/isolator and method for manufacturing the same is described. In one implementation, the above resonance circulator/isolator includes a magnet, a spacer, a single ferrite element, a center conductor and a pole piece. The center conductor is sandwiched between the magnet and the single ferrite element with the spacer interposed between the magnet and the center conductor. The pole piece is coupled to the single ferrite element, such that the single ferrite element is sandwiched between the center conductor and the pole piece. Magnetic shielding is not necessary in particular implementations.

Above resonance isolator/circulator and method of manufacture thereof

A compact multi-element cascade circulator in which electrical and mechanical performance is enhanced while handling and assembly costs are reduced. The circulator includes a plurality of junctions connected in cascade to provide a plurality of non-reciprocal transmission path between signal ports on a network, and a metal housing with a cover in which the junctions are disposed. The plurality of junctions includes an oval permanent magnet, a multi-ferrite component including two (2) oblong ferrite elements, a dielectric constant medium disposed between the ferrite elements, and a plurality of conductor portions sandwiched between the ferrite elements. By configuring the multi-element cascade circulator to include the oval permanent magnet and the oblong ferrite component that are employed by more than one junction of the circulator, the multi-element cascade circulator achieves enhanced performance with reduced inventory and manufacturing costs.

Compact multi-element cascade circulator

A compact dual element cascade circulator in which performance is enhanced while the size of the overall device is reduced. The circulator includes a plurality of junctions connected in cascade to provide a plurality of non-reciprocal transmission path between signal ports on a network, and a metal housing with a cover in which the junctions are disposed. The plurality of junctions includes a single oblong permanent magnet, a dual ferrite component including two (2) oblong ferrite elements, a dielectric constant medium disposed between the ferrite elements, and a plurality of conductor portions sandwiched between the ferrite elements. A single impedance matching structure is coupled between successive junctions. By configuring the dual element cascade circulator to include the single permanent magnet and the dual ferrite component that are employed by successive junctions of the circulator, and the single impedance matching structure coupled between the respective successive junctions, enhanced circulator performance and a reduced device size are achieved.

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Hanson, MA, United States of America

George Hempel