Apparatus to seal against leakage of high frequency radiation through a slot
First Claim
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1. High frequency apparatus comprising:
- a component having a wall defining a region which in use contains high frequency radiation;
a slot through said wall;
a member extensive through said slot and moveable along said slot; and
sealing means fixed relative to said wall and arranged at said slot to seal against leakage of high frequency radiation through said slot, said sealing means being such as to allow movement of said member along said slot.
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Accused Products
Abstract
In high frequency apparatus such as for example an rf resonant cavity or a waveguide, it is often necessary to include a slot to permit a probe or other member to be located in the high frequency region and be moveable along the slot. Sealing means arranged adjacent to the slot and around the probe permits movement of the probe whilst minimising the open aperture area of the slot, hence preventing or reducing leakage through it. In one embodiment of the invention, the sealing means comprises a metallic mesh and in another it includes an elastomer material which is loaded with metallic material and/or carries a metallic mesh.
5 Citations
21 Claims
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1. High frequency apparatus comprising:
a component having a wall defining a region which in use contains high frequency radiation;
a slot through said wall;
a member extensive through said slot and moveable along said slot; and
sealing means fixed relative to said wall and arranged at said slot to seal against leakage of high frequency radiation through said slot, said sealing means being such as to allow movement of said member along said slot.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. High frequency apparatus as claimed in claim I wherein said member is included in mechanical linkage means.
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20. High frequency apparatus as claimed in claim I wherein said member is included in means for transmitting high frequency radiation.
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21. Sealing means adapted for use in high frequency apparatus which apparatus comprises a component having a wall defining a region which in use contains high frequency radiation;
- a slot though said wall, and a member extensive through said slot and moveable along said slot wherein said sealing means is fixed relative to said wall and arranged at said slot to seal against leakage of high frequency radiation through said slot and said sealing means is such as to allow movement of said member along said slot.
Specification
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Current AssigneeE2V Technologies PLC
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Original AssigneeEEV Ltd. (Teledyne Technologies Incorporated)
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InventorsGandy, Philip William Laurence, Hood, Graham Michael, Bridges, Mark
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Primary Examiner(s)GENSLER, PAUL L
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Application NumberUS08/755,087Time in Patent Office634 DaysField of Search333/209, 333/231, 333/232, 333/248, 333/99 R, 324/95, 324/637, 324/645US Class Current333/248CPC Class CodesH01P 1/00 Auxiliary devices coupling ...
