发明名称 |
Mechanism for elimination of corona effect in high power RF circuitry at extended altitudes |
摘要 |
An improved electrical circuit particularly adapted to operate in an extremely thin atmosphere such as above fifty thousand feet. The circuitry of the invention is preferably formed on a circuit board and has an exposed conductive element such as a harmonic filter. This exposed conductive element is encased by a thin dielectric which is preferably formed using a solder mask having dielectric properties which prevent the conductive element from creating a corona during electrical operation in the contemplated thin atmosphere. In the preferred embodiment, the solder mask has a thickness of less than 0.002 inches and exhibits a dielectric strength of at least 1000 V/0.001 inch. The solder mask, for the preferred embodiment, is positioned to cover the conductive element and extends onto the circuit board only minimally.
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申请公布号 |
US5923232(A) |
申请公布日期 |
1999.07.13 |
申请号 |
US19970893468 |
申请日期 |
1997.07.11 |
申请人 |
HONEYWELL INC. |
发明人 |
EUROPA, THOMAS M.;SMITH, MARK D. |
分类号 |
H01P1/203;H01P1/30;H05K1/02;H05K3/28;(IPC1-7):H01P1/203;H05K1/00 |
主分类号 |
H01P1/203 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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