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Increasing return loss corresponds to lower SWR. Return loss is a measure of how well devices or lines are matched. A match is good if the return loss is high. A high return loss is desirable and results in a lower insertion loss. From a certain perspective 'Return Loss' is a misnomer. The usual function of a transmission line is to convey ...
Voltage standing wave ratio (VSWR) (pronounced "vizwar" [1] [2]) is the ratio of maximum to minimum voltage on a transmission line . For example, a VSWR of 1.2 means a peak voltage 1.2 times the minimum voltage along that line, if the line is at least one half wavelength long.
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).
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The word "loss" is, in effect, a negative sign, just as the word "gain" is associated with a positive sign. Also, we learn in Algebra 101 that +x+=+, +x-=-, -x+=-, and -x-=+. Thus a gain of -6.7 dB is a loss of 6.7 dB, and is better stated as such, since doubling up on signs obscures the meaning, rather like the double negative in English...
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In real systems, relatively little loss is due to mismatch loss and is often on the order of 1dB [dubious – discuss]. According to Walter Maxwell [2] mismatch does not result in any loss ("wasted" signal), except through the transmission line. This is because the signal reflected from the load is transmitted back to the source, where it is re ...
It’s the most unique rivalry game in college sports and one of the signature events of the college football season: Army vs. Navy. Kicking off at 3 p.m. ET Saturday from Northwest Field in ...