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US 2007/0139131 A1Published application
Ferrite waveguide circulator with thermally-conductive dielectric attachments
AssigneeEMS Technologies, Inc.
InventorAdam M. Kroening
Life of this patent
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Abstract
The present invention improves the geometry of ferrite circulators in order to increase the average power handling by decreasing the temperature rise in the ferrite and associated adhesive bonds. Embodiments of the present invention utilize dielectric attachments on the sides of the ferrite element, which maximizes the area of contact and minimizes the path length from the ferrite element out to the thermally conductive attachments.
Claims24
A ferrite waveguide circulator, comprising:
- a waveguide structure having an internal cavity, the waveguide structure including a plurality of ports extending from the internal cavity;
- at least one ferrite element disposed in the internal cavity, said ferrite element including at least one leg having at least two side surfaces and one face surface;
- and
- at least one thermally-conductive dielectric attachment affixed to at least one of said side surfaces of the ferrite element.
1 more element
A ferrite waveguide circulator, comprising:
- a waveguide structure having an internal cavity, the waveguide structure including a plurality of ports extending from the internal cavity;
- at least one ferrite element disposed in the internal cavity, said ferrite element including at least one leg having at least two side surfaces and one face surface;
- and
- at least one thermally-conductive dielectric attachment affixed to at least one of said face surfaces of the ferrite element.
1 more element
A system for circulating microwaves in a waveguide, comprising:
- a waveguide structure having an internal cavity forming an input port and one or more output ports;
- a ferrite element that substantially exclusively couples microwaves from said input port to one of said output ports, wherein the substantially exclusive coupling is responsive to an activation of at least one magnetizable winding associated with said ferrite element;
- and
- at least one thermally conductive dielectric attachment affixed to the ferrite element so as to conduct thermal energy away from said ferrite element.
1 more element
Dependencies are inferred from the claim text.