00468nam a2200169Ia 4500003000400000005001700004008004100021040002100062041000800083082002100091100002400112245004300136264006100179300000900240650003400249650001500283AIT20260509164548.0221231s9999    xx            000 0 und d  aATRIAbengcaAIT  aeng  a621.3813 GUP222  aGupta K. C.eAuthor 0aMicrowaves /cby  Kuldip Chandra Gupta34aNew Delhi :bNew Age International Publication.c©2000.  a242p  aElectronics and Communication  aMicrowaves