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Old October 24th 05, 11:09 PM
TRABEM
 
Posts: n/a
Default HIGH Q CAPS FOR VLF LOOP ANTENNA?

Thanks Tom,

I hope for a Q of 600.

At 60kHz, Q=600 is only
about a 100Hz bandwidth, so I suppose you won't want a higher Q than
that anyway (assuming you could get it). I'm curious: what loaded Q
do YOU expect to get?


How big is your loop going to be?


Around 5.2 Meters per side.

What
impedance do you expect with the loop resonated?


It should be under 1 ohm. I don't exactly know the ac resistance or
how the Q of the C and the Q of the inductor combine.

My loop material is 2/0 copper welding cable, many fine starnds. I
considered 3 inch copper pipe, but couldn't get an estimate of the ac
resistance for either, so I chose the copper cable.


Regards,

T