00412nam a2200133 a 4500008004100000020001500041050001800056100001800074245007900092260005600171350000900227650001600236650002600252120416s1999    ||||||||||||||||| ||    u  a0852967632  aQC 665.E4 Roz  aRozzi, Tullio10aAdvanced electromagnetic analysis of positive and active planar structures  aLondonbThe Institute of Electrical Engineersc1999  a0.00  aELECTRICITY  aELECTROMAGNETIC WAVES