TWO-CONDUCTOR LOW-PASS TRANSMISSION LINE THEORY.
IIT RESEARCH INST CHICAGO ILL
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The protection of electroexplosive devices EEDs from inadvertent firing has become increasingly important in todays modern Navy. One approach which may be used to offer increased safety in the handling of weapons containing such elements is the use of firing cables which will discriminate between the normal firing signal and unwanted energy coupled into the weapon. Theoretical results are given which indicate that the use of dissipating lines can offer substantial benefits. The optimum transmission line for this purpose which can be designed is shown to be one whose attenuation varies as a function of the frequency squared if no variation in the materials of the line or the geometry of the line as a function of length are allowed. If such a line were designed to have 3 dbmeter of attenuation at 20 kilocycles, an attenuation of 60 cbmeter could be achieved at a frequency of approximately 90 kc. Author