The reflection loss
(RL) of composite nanofibers was calculated by Matlab based on the relatively complex permeability and permittivity at a given frequency and matching thickness according to the following equations:
In our best design, nearly two-thirds of the surface can be covered with metal, yet the reflection loss
is only 3 percent.
In addition, better than 10dB reflection loss
is realized every time at the resonant frequency as shown in Fig.
In order to reduce the reflection loss
without the additional processing steps required for coating the backside of the grating facets with a reflecting metal, a total internal reflection (TIR) V-shaped facet was used at each grating tooth (see Figure 1(d)).
An additional correction for end reflection loss
(ERL) must also be added to discharge sound levels for air terminals.
lower values of reflection loss
, was observed for the case of RHC absorber, while, conversely, the performance of the RTC absorber decreased.
64dB and reflection loss
is better than 20 dB in the passband.
The drops at the lower frequencies correspond to the end reflection loss
that is most pronounced for small ducts at low frequencies.
Everything above it is the reflection loss
, and 0 dB corresponds to the ideal transmission through the structure.
Taking into account the different sizes of the Ti- and Be-traps we find no difference in the reflection loss
coefficient for the two kinds of sub-layer.
2] exp-2[gamma]t)\ additional internal attenuation and reflection loss
Lehigh measured an average connector reflection loss