said coil of wire providing {TAIL ~ a tubular shaped metallic grounding surface} which alters the electromagnetic field of {HEAD ~ said radio frequency energy} radiated by said ported coaxial cable to direct and concentrate said energy about said coil of wire 
said coil of wire providing { TAIL ~ a tubular shaped metallic grounding surface } which alters the electromagnetic field of { HEAD ~ said radio frequency energy } radiated by said ported coaxial cable to direct and concentrate said energy about said coil of wire
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