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#1
July 25th 06, 05:42 AM
posted to rec.radio.amateur.antenna
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Capacitors for HF Antenna
ORIGINAL MESSAGE:
On Mon, 24 Jul 2006 18:50:41 GMT, Cecil Moore wrote: I once used disc ceramic bypass caps to try to tune an antenna. They went up in flames. For a small loop, I would at least use doorknob quality caps. -- ------------ REPLY SEPARATOR ------------ He was asking about an RFID application, presumably a few milliwatts. Bill, W6WRT |
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#2
July 25th 06, 01:56 PM
posted to rec.radio.amateur.antenna
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Capacitors for HF Antenna
Bill Turner wrote:
He was asking about an RFID application, presumably a few milliwatts. I think he said 4 watts to a one meter loop. Even in that application, I suspect the physical flexing of ceramic caps would cause losses. After mine caught on fire, I found out that at least some ceramic caps are designed to be biased by DC. -- 73, Cecil http://www.qsl.net/w5dxp |
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