"John Smith" bravely wrote to "All" (11 May 05 22:25:13)
--- on the heady topic of " Reflector Vs Director"

The only thing I know is that an antenna is a tricky compromise
between a myriad of physical constants that make it up. Simply
changing the dimensions of an element will affect the optimum spacing
for maximum gain. But then so too having maximum gain as a goal will
often reduce bandwidth. So some compromise to gain/bandwidth must be
made to have a real antenna at the end of the process. Many such
mutually defeating compromises must be juggled with to achieve this.
Then, as if this wasn't enough, one must add the interaction with the
environment, thinks like weather, proximity to objects, noise, etc.

A*s*i*m*o*v


JS Reply-To: "John Smith"
JS Xref: aeinews rec.radio.amateur.antenna:30174

JS Oh yes, the important spacing--we agree on that alright (the rest
JS too--I see that physical/electrical length as important to--but
JS "electrical length" and "magnetic field shape" are related on an
JS almost linear scale), but what is "in" that "spacing"--now there is
JS the nut of this... that "magnetic field" is not a "proton projection"
JS and my antenna does not "glow"--and that "space" ain't no wire--or is
JS it?

.... Children come from God. He can't stand the noise either.