Helszajn, J. (Joseph) <br/><br/>
Microwave engineering /  Passive, active, and non-reciprocal circuits 
Joseph Helszajn 
 - London ; New York  McGraw-Hill.,  1992. 
 - xvi, 484p.  ill.  24cm. 
<br/><br/>Includes bibliographical and index 
<br/><br/><label>ISBN: </label>0077073754  Rm284.58 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microwave circuits