00479nam a22001217a 4500020002400000082001900024100004800043245004300091260003100134300003400165500005100199650010700250  a9781596931565 (pbk)  a621.38132bRFA  aR.K. MongiaaI.J. BahIaP. BhartiaaJ. Hong  aRF and microwave coupled-line circuits  aBostonbArtech Housec2007  axiii, 549 p.b: ill.c; 26cm.  aIncludes bibliographical references and index.  aMicrowave circuitsvCoupled structuresvDirectional couplersvImpedance matrixvUnitary propertyvFEAS