This structure can be custom configured in as many layers or in {HEAD ~ a variety} of {TAIL ~ shapes} as is desirable to achieve a given electrical performance 
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This structure can be custom configured in as many layers or in { HEAD ~ a variety } of { TAIL ~ shapes } as is desirable to achieve a given electrical performance
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH