TY  - BOOK
AU  - Helszajn, Josheph
TI  - Ferrite phase shifters and control devices
SN  - 0-07-707092-5
U1  - 621.3813 
PY  - 1989///
CY  - London
PB  - McGraw-Hill
KW  - Circular waveguides
KW  - Couple wave-theory
KW  - Mechanical
KW  - Perturbation theory
N1  - Includes index; na
ER  -