Then: RF Leakage Characteristics of Popular Coaxial Cables and Connectors, 500 MC To 7.5 GC
In the design and use of coaxial devices, a knowledge of the leakage characteristics of radio-frequency cables and connectors is important, both in measurements and in the design of operational and test equipment.
The evaluation and measurement of electromagnetic leakage through solid conductors, braids, screens, slits and other configurations employed to confine the electromagnetic fields in apparatus, has been the subject of a great deal of analysis and research. Some investigators have been concerned with the leakage phenomenon itself,1,2,3,4,5 others with its measurement 6,7,8,9,10,11.
The experimental procedure employed is usually chosen in accordance with the particular manifestation of the electromagnetic leakage that is of interest. For example, for conducted leakage or coupling, a special direct metallic connection may be made between the leakage source and the detector; for induction or near-field leakage, probes or loops are placed in proximity with the leakage source; and, for radiated leakage, probes, loops, or the more distributed version of these, antennas, are placed at what is considered the far field of the leakage source. The three are commonly evaluated, in toto, by surrounding the leakage source with a closed coaxial system. The usual practice is to couple some of the basic leakage modes to the TEM mode of the coaxial system.
RF Leakage Characteristics of popular Coaxial Cables and connectors, 500 MC To 7.5 GC
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