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