TY  - BOOK
AU  - Helszajn,J.
TI  - Microwave engineering: passive, active, and non-reciprocal circuits 
SN  - 0077073754
PY  - 1992///
CY  - London ; , New York : 
PB  - McGraw-Hill, 
KW  - Ferrite devices
KW  - Microwave antennas
KW  - Microwave circuits
N1  - Includes bibliographical references and index
ER  -