10-09-2017, 04:46 AM
The article was written by JJ Carr who authored "The practical Antenna Handbook". He shows the same picture in the book and offers this explanation.
Two observations of my own.
1. As he says the performance depends on the load resistor being well grounded. The incidence wave must be absorbed by the load resistor or there will be a reflected wave which will produce a standing wave which will decrease performance.
2. K is a velocity factor. Poor conduction causes a lower velocity which in turn increases the effective length of the antenna.
If you would like a copy of the book go here and click the fourth link down the page. The article reference is around page 230.
http://radio.radiotrician.org/2017/01/
Two observations of my own.
1. As he says the performance depends on the load resistor being well grounded. The incidence wave must be absorbed by the load resistor or there will be a reflected wave which will produce a standing wave which will decrease performance.
2. K is a velocity factor. Poor conduction causes a lower velocity which in turn increases the effective length of the antenna.
If you would like a copy of the book go here and click the fourth link down the page. The article reference is around page 230.
http://radio.radiotrician.org/2017/01/
