standing-wave ratio

- For a given transmission line, such as a coaxial cable or waveguide, the
__ratio__of the maximum voltage to the minimum voltage. It is a measure of the impedance matching of the__line__. This ratio is__equal__to 1 when there is complete impedance matching, in which case the__maximum__possible__RF power__reaches the__load__, such as an antenna. Also called voltage standing wave ratio. - For a given
__transmission__line, such as a coaxial__cable__or waveguide, the ratio of the__maximum current__to the minimum__current__. It is a measure of the impedance matching of the line. This ratio is__equal__to 1 when there is complete impedance matching, in which case the maximum possible__RF power__reaches the load, such as an antenna. Also called current standing-__wave__ratio. - acronym SWR

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