The radiation efficiency is greatly boosted by making the outer loop larger ( compared to one only used for receiving ) insofar as that is possible in a given application, with circumferences ideally greater than 1 " / " 10 of a wavelength.
12.
The gain G may be broken down into three factors; the antenna gain ( the directional redistribution of the power ), the radiation efficiency ( accounting for ohmic losses in the antenna ), and lastly the loss due to mismatch between the antenna and transmitter.
13.
The design has almost double the radiation efficiency of the HF folded dipole of the same length and is nearly half the size of other traditional HF wire antennas such as the " Australian travelling wave dipole " The standard size Robinson Barnes antenna is only 27m in length.
