| ??? 11/24/11 19:02 Read: times |
#184886 - Only 3pF... Responding to: ???'s previous message |
Mahmood said:
Yes and I even used DC/DC converter to power the GPS and optoisolatd its output signal... At 2,4GHz the impedance of typical 3pF input to output stray capacitance of opto is about 20 Ohm. This looks more like a short circuit than isolation! The same is true for your DC/DC-converter. At 2,4GHz it's hard to truly isolate something. And, to make it even worse, everything having a "length" becomes an antenna... Kai Klaas |
| Topic | Author | Date |
| Faraday Cage | 01/01/70 00:00 | |
| Pi-filters are best... | 01/01/70 00:00 | |
| Pi Filters | 01/01/70 00:00 | |
| Components must work at 2,4GHz... | 01/01/70 00:00 | |
| RFI problems | 01/01/70 00:00 | |
| details | 01/01/70 00:00 | |
| and what is solution? | 01/01/70 00:00 | |
| no solution found yet | 01/01/70 00:00 | |
| Faraday cage | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| Maybe Two | 01/01/70 00:00 | |
| even more | 01/01/70 00:00 | |
| Only 3pF... | 01/01/70 00:00 | |
but only 3s | 01/01/70 00:00 | |
| wifi channels | 01/01/70 00:00 | |
| Roving networks | 01/01/70 00:00 | |
| which channel? | 01/01/70 00:00 |