[ForSale-Swap] Antenna Resonance Question

[Bob Tetrault]

None of the above. And Webster's definition is only one definition; there
are other definitions that are just as true. In your context, an antenna is
resonant at a frequency where its physical structure produces an impedance
that either peaks the voltage or the current feeding it. This condition is
similar to a series resonant or parallel resonant circuit; some antennas
work better when current fed, such as a dipole.

-----Original Message-----
From: forsale-swap-admin at mailman.qth.net
[mailto:forsale-swap-admin at mailman.qth.net]On Behalf Of sx28 at juno.com
Sent: Thursday, April 18, 2002 4:38 AM
To: icom at mailman.qth.net
Cc: forsale-swap at mailman.qth.net; johnson at mailman.qth.net
Subject: [ForSale-Swap] Antenna Resonance Question


Amazing.. some say it is A, others say it is C and another says it is
None of the Above.  So I added answer E just to make things interesting.
 Come on guys get your old antenna engineering handbook out. According to
Websters New Collegiate Dictionary:
Resonance is caused by a relatively small periodic stimulus of the same
or nearly the same period at the natural vibration period of the system.



An antenna is resonant when
a) it is 1/2 wavelength long
b) the source resistance is exactly zero ohms
c) the antenna is a center-fed dipole
d) the source reactance is exactly zero ohms Answer______________
e) none of the above

________________________________________________________________
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today!  For your FREE software, visit:
http://dl.www.juno.com/get/web/.
______________________________________________________________
ForSale-Swap mailing list
 FAQ: http://www.nethawk.com/1113/swap/swap.htm
Home: http://mailman.qth.net/mailman/listinfo/forsale-swap
Post: mailto:ForSale-Swap at mailman.qth.net