On flex circuit desense filter for wireless communications
US9780755B1 · kind B1 · utility
4Cited by
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20Claims
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Assignee
Inventors
Key dates
| Filing date | Sep 16, 2016 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Sep 16, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus for on flex desensing, includes a flex circuit including one or more DC traces, and at least one desense filter including a transformer having a primary winding coupled to at least one of the DC traces. Each desense filter includes one or more circuits coupled to a secondary winding of the transformer. Each of the circuits includes a variable capacitor connected in parallel with a resistor, and each desense filter is tunable to filter a desense frequency in a frequency band associated with one or more wireless communication protocols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.