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For 50-ohm microstrip and coplanar lines constructed on a copper-clad ceramic/PTFE glass cloth laminate substrate AR-1000, the propagation constants gamma=alpha+jszlig, where alpha is attenuation constant and beta is phase constant, are calculated with the 3-dimensional electromagnetic simulator HFSS and 2.5-dimensional simulator Sonnet em in the frequency range 1 to 20 GHz. Particularly, the attenuation...
During the 2005 National Electrical Codereg (NECreg) review cycle, a relatively simple revision was made that will have a significant impact on the cathodic protection systems of petroleum and chemical facilities (plants) in the future. The 2005 NEC now makes it clear that there must be an interconnection of all concrete-encased steel reinforcing bar (rebar) to the facility grounding electrode system...
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