00459nam a2200145Ia 4500003000600000005001700006008004100023020001500064040004900079082001700128100002200145245007200167260002300239500005100262NORSU20240729054114.0240220s9999    xx            000 0 und d  a0071126414  aNORSU Dumaguete (Main Campus ll)cNORSU-MCII  a621.3813 H37  aHelszajn,  Joseph 0aMicrowave Engineering:  Passive, Active and Non-reciprocal circuits  bMcGraw-HillcC1992  aIncludes bibliographical references and index.