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Definition of "Dummy Load" |
A dissipative but non-radiating device that has the impedance characteristics of an antenna or transmission line. Also called Artificial Load. More information on Dummy Load. A dissipative impedance-matched network, usually used at the end of a transmission line to absorb all incident energy. A dummy load usually converts the incident energy to thermal energy. / Dummy load is a device used to simulate an electrical load, usually for testing purposes. / One method of assessing frequency response and sometimes other characteristics is to feed a square wave to the input of the device under test and examine its output on a CRO. The square wave is made up of a fundamental frequency and all odd harmonies, theoretically to infinity. A deficiency within the frequency spectrum, from the fundamental upwards, will show a change in the shape of waveform. The test is subjective rather than precise but gives a good indication of the response. |
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