REFERENCES
- Blackwell, L. A. & Kotzebue, K. L., “Semiconductor diode parametric amplifier” (Prentice-Hall, Englewood Cliffs), 1961.
- Barret, R. M., “Microwave printed circuits—A historical survey”, I.R.E. Trans, on MTT (March 1955), 1.
- “Reference data for radio engineers”, Int. Telephone & Telegraphs Corp., New York, 4th Ed., 1956.
- Torgow, E. N. & Griemsmann, J. W. E., “Microwave strip transmission line for microwave applications”, I.R.E. Trans, on MTT (March 1955), 57.
- Frost, A. D. & Mingins, C. R., “Microwave strip circuit research at Tufts College”, I.R.E. Trans. on MTT (March 1955), 10.