The losses in cables at high frequencies

✍ Scribed by Edwin F. Northrup; R.G. Thompson

• Book ID: 104121098
• Publisher: Elsevier Science
• Year: 1916
• Tongue: English
• Weight: 592 KB
• Volume: 182
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(16)90714-2

✦ Synopsis

WHEN current passes through solid metal conductors at the high frequencies employed in wireless telegraphy and telephony the heat-losses are needlessly excessive, and, to diminish these, various types of stranded cable are employed . The object of this investigation is to experimentally determine if there is any appreciable difference in the losses in cables which depends upon the arrangement, the size, and the insulation of the individual strands which make up a cable, and to determine what combinations of these various features will give a cable best suited for use at high frequencies under specified conditions,

The high-frequency resistance of a given length of cable depends upon many variables, among which are the following :

The specific resistance of the wire, The shape of the cross-section of the cable .

*Communicated by E . F. Northrup . The material of this investigation was obtained by R . G . Thompson and C. G. Monteiro for their theses leading to the degree of E. E. from Princeton University . The methods and planning of the research are due to E . F . Northrup . The presentation here given was prepared jointly by E . F . Northrup and R . G . Thompson.