A way to "broadband" an antenna is to shunt the feed point with a resistor,
say 100 ohms for a dipole. The impedance presented doesnt stray too much over
a wide range of frequencies. Of course the coupling efficiency to space does
change, but this is not important if the ambient noise is greater than system
noise.
Such a "black box" was offered commercially a number of years ago.
bob w4mb
-- The NEC-List mailing list <nec-list_at_gweep.ca> http://www.gweep.ca/mailman/listinfo.cgi/nec-listReceived on Sun Mar 03 2002 - 16:37:11 EST
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