Raymond A Jussaume

US Patent:

6822524, Nov 23, 2004

Filed:

Feb 4, 2002

Appl. No.:

10/067435

Inventors:

George W. Hempel - Hanson MA
Raymond G. Jussaume - Somerville MA

Assignee:

Tyco Electronics Corporation - Middletown PA

International Classification:

H01P 132

US Classification:

333 11, 333 242

Abstract:

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.

US Patent:

20030030501, Feb 13, 2003

Filed:

Feb 4, 2002

Appl. No.:

10/067583

Inventors:

George Hempel - Hanson MA, US
Raymond Jussaume - Somerville MA, US
Stanley Paquette - Dracut MA, US

Assignee:

TYCO ELECTRONICS CORPORATION

International Classification:

H01P001/32

US Classification:

333/001100, 333/024200

Abstract:

A multi-element radio frequency or microwave circulator or isolator assembly has a plurality of integral circuit elements in which the components are formed as single, unitary pieces arrayed in a stack in a single housing assembly. The housing assembly includes a base housing and a cover. The cover is configured to latch to the base housing in contact with the circuit elements to maintain a uniform operative pressure over the circuit elements in the housing assembly. In this manner, the components are maintained in a single dielectric medium and the dimensional tolerances in all elements are the same, leading to reduced losses and greater stability of performance.