Corona prevention in radio frequency circuits
US-10505246-B2 · Dec 10, 2019 · US
Corona prevention in high power circulators
US11610704B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11610704-B2 |
| Application number | US-201916719622-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 18, 2019 |
| Priority date | Dec 21, 2018 |
| Publication date | Mar 21, 2023 |
| Grant date | Mar 21, 2023 |
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- Title
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Abstract
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A method for preventing corona effects in an electronic circuit comprising applying a coating of a first material to a surface of the electronic circuit, and applying a second material having a dielectric constant that is lower than that of the first material on an exposed surface of the first material, wherein the second material comprises a solid dielectric.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for preventing corona effect in an electronic circuit, the electronic circuit including a control circuit and a garnet, the method comprising the steps of: applying a first polymer material having a first dielectric strength on a surface of the control circuit and on a surface of the garnet; and applying a second polymer material having a second dielectric strength that is lower than the first dielectric strength of the first material on an exposed surface of the first material, wherein the second material comprises a solid dielectric. 2. The method of claim 1 , wherein the first polymer material comprises a parylene coating applied on the the surfaces of the control circuit and the garnet. 3. The method of claim 2 , wherein the parylene coating has a dielectric strength of approximately 7,000 volts per mil (V/mil). 4. The method of claim 1 , wherein the second polymer material comprises a silicone rubber compound. 5. The method of claim 1 , wherein the solid dielectric has a dielectric strength of approximately 500 volts per mil (V/mil). 6. The method of claim 1 , wherein the electronic circuit comprises a circulator. 7. The method of claim 1 , further comprising arranging the electronic circuit within a housing. 8. The method of claim 7 , wherein said applying the first polymer material on the surfaces of the control circuit and the garnet includes: applying a first coating of the first polymer material on the surfaces of the control circuit and the garnet, and applying a second coating of the first polymer material on at least one of the first coating of the first polymer material and a surface of the electronic circuit after the electronic circuit is arranged within the housing. 9. The method of claim 8 , wherein the electronic circuit comprises a circulator, and wherein the second coating of the first polymer material is applied on the garnet of the circulator after the circulator is arranged within the housing. 10. The method of claim 7 , wherein the second polymer material is applied by filling a remaining volume of the housing with the second polymer material.
Assignees
Inventors
Classifications
Applying non-metallic protective coatings {(H05K3/0091 takes precedence; methods for intermediate insulating layers for build-up multilayer circuits H05K3/4673)} · CPC title
Electrostatic discharge [ESD] protection · CPC title
- H01B17/42Primary
Means for obtaining improved distribution of voltage (capacitor-type lead-through insulators H01B17/28); Protection against arc discharges · CPC title
Dielectric or adhesive layers comprising a plurality of layers, e.g. in a multilayer structure · CPC title
Circulators · CPC title
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Frequently asked questions
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- What does patent US11610704B2 cover?
- A method for preventing corona effects in an electronic circuit comprising applying a coating of a first material to a surface of the electronic circuit, and applying a second material having a dielectric constant that is lower than that of the first material on an exposed surface of the first material, wherein the second material comprises a solid dielectric.
- Who is the assignee on this patent?
- Lockheed Corp
- What technology area does this patent fall under?
- Primary CPC classification H01B17/42. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 21 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).