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Any component of the transmission line that has an input and output will contribute to the overall mismatch loss of the system. For example, in mixers mismatch loss occurs when there is an impedance mismatch between the RF port and IF port of the mixer [dubious – discuss]. [4]
In telecommunications, return loss is a measure in relative terms of the power of the signal reflected by a discontinuity in a transmission line or optical fiber.This discontinuity can be caused by a mismatch between the termination or load connected to the line and the characteristic impedance of the line.
The extra loss may be due to intrinsic loss in the DUT and/or mismatch. In case of extra loss the insertion loss is defined to be positive. The negative of insertion loss expressed in decibels is defined as insertion gain and is equal to the scalar logarithmic gain (see: definition above).
The page describes what better is known as "Return Loss". Reflections only occur, where there are waves involved, that are reflected, i.e. meaning returning on a transmission line or waveguide in opposite direction. (Other than using that ambigously confusing misnomer "Mismatch Loss" , the page does make a correct difference, though.
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However the same 6:1 mismatch through 75 meters of RG-8A coax would incur 10.8 dB of loss at 146 MHz. [ 5 ] (pp19.4–19.6) Thus, a better match of the antenna to the feed line, that is, a lower SWR, becomes increasingly important with increasing frequency, even if the transmitter is able to accommodate the impedance seen (or an antenna tuner ...
Baker Mayfield stats vs. Commanders Mayfield may have been disappointed with his performance, but he still posted strong numbers during the contest. He completed 15-of-18 passes (83.3%) for 185 ...
The third involved a video "impersonating the FBI and a United States government agency" with a purported statement that schools should suspend activities until Nov. 11.