Bengio noted other researchers have argued nanotube-based antennas and their inherent properties have kept them from adhering to the "classical relationship between radiation efficiency
and frequency," but the Rice experiments with more refined films have proved them wrong, allowing for the one-to-one comparisons.
The ground plane is of particular importance in the generation of PCB antennas as a smaller ground plane can constrain design significantly with a much narrower functional bandwidth, lessened antenna radiation efficiency
, and modified radiation pattern.
The radiation efficiency
(G-value) was estimated for all the prepared films.
The first term is the radiation efficiency
of converting sunlight into the thermal emission of emitter by the absorber-emitter pair.
Furthermore, [e.sub.cd] = [e.sub.c][e.sub.d] is the antenna radiation efficiency
, which relates to the antenna gain and directivity.
Figure 5 presents the simulated radiation efficiency
of the antenna.
This radiation could be measured by the common methods for the antenna radiation efficiency
Radiated Power and Radiation Efficiency
. Investigation of the acoustics of soundboards is concerned with the maximum acoustic power that it can radiate.
Antenna radiation efficiency
is defined as the ratio of power radiated to the input power.