TY  - BOOK
AU  - Helszajn, J
TI  - Ridge waveguide and passive microwave components
SN  - 0-85296-794-2
U1  - 621.38131 HEL 
PY  - 2000///
CY  - UK
PB  - IEE
KW  - MICROWAVE COMPONENTS;  PASSIVE MICROWAVE COMPONENTS
ER  -