References
- Pincherle , L. 1944 . Electromagnetic waves in metal tubes filled longitudinally with two dielectrics . Phys. Rev. , 66 ( No. 5 ) : 118 – 130 . see also R. F. Harring- ton, Time-Harmonic Electromagnetic Fields, 158-163, McGraw Hill Book Company, 1961
- Marcuvitz , N. 1951 . Waveguide Handbook , 388 – 393 . McGraw Hill Book Company .
- Tai , C. T. 1971 . Dyadic Green's Functions in Electromagnetic Theory , Scranton , Pennsylvania : International Text- book Company .
- Tai , C. T. 1983 . Dyadic Green's functions for a coaxial line . IEEE Trans. Antennas Propagat. , AP-31 March : 355 – 358 .