Globalizing the effects of errors
Active antennas - Sizing

Throughout the descriptions in paragraph 3 of article [E 3 294] , we have highlighted other causes of error than the quantification and failures just described. These are all the residual deviations between the values provided by the models and the actual values produced by the circuits.

Without wishing to conclude the search for errors, we should mention at least one additional cause of error: that due to external coupling between radiating elements. Insofar as the module is always (whatever the frequency in particular) matched to the radiating element, and insofar as the module's behavior is insensitive to the energy coupled between radiating elements, there would be no additional cause of error. In practice, part of the coupled energy is reflected and re-radiated; through load-pull...