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Old December 27th 05, 05:39 PM posted to rec.radio.cb
Scott in Baltimore
 
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Default If the ideal lenght of an antenna is 1/4 Wave lenght then wayare the Car Cellular antennas are longer then this ?

I always thought 1/4 length was easier because you can make one easily from 1/1 length
by breaking in half exactly two times.
And then you have 4, so more economic too.


A dipole is made from two quarterwaves. An odd quarterwave is
easy to match to. Any other length needs a matching network
of some kind. Gain comes about from directing the RF in
some directions. This can be one direction like a beam,
or omnidirectional with something more complicated then a
simple quarterwave antenna.

Tell your instructor he needs some more instruction.
(Electronics books are in 621 at the library)
 
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