In RF and microwave systems, a quarter-wave impedance transformer provides a way of matching impedances between circuits over a limited range of frequencies, using only a length of transmission line.
12.
This is because the detector looks almost like a short circuit to the transmission line, and this distance will convert it to an open circuit through the quarter-wave impedance transformer effect.
13.
For a waveguide or transmission line containing more than one type of dielectric medium ( such as microstrip ), the wave impedance will in general vary over the cross-section of the line.
14.
There are no articles whose title indicates that they're about terminology ( e . g . by ending in " ( term ) " ) and many that are obviously not about language ( Quarter-wave impedance transformer for example ).
15.
In the far-field region, each part of the EM field ( electric and magnetic ) is " produced by " ( or associated with ) a change in the other part, and the ratio of electric and magnetic field intensities is simply the wave impedance.
16.
Where " Z " 1 and " Z " 2 are the wave impedances of media 1 and 2, respectively, ? 1 and ? 2 are the magnetic permeability of the two materials, and ? 1 and ? 2 are the electric permittivity of the two materials ( at the frequency of the light wave ).
