Coaxial cable having high radiation efficiency

Communications: radio wave antennas – Antennas – Spiral or helical type

Reexamination Certificate

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C343S798000, C174S109000

Reexamination Certificate

active

07471258

ABSTRACT:
A radiating coaxial cable transmission line that may be used as an antenna. Mechanisms are incorporated for boosting the rate of conversion of bifilar mode to monofilar mode.

REFERENCES:
patent: 3417400 (1968-12-01), Black
patent: 4129841 (1978-12-01), Hildebrand et al.
patent: 4152648 (1979-05-01), Delogne
patent: 4339733 (1982-07-01), Smith
patent: 4987394 (1991-01-01), Harman et al.
patent: 5936203 (1999-08-01), Ryman
Wait, J.R., “Electromagnetic Theory of the Loosely Braided Coaxial Cable: Part 1,” IEEE Transactions on Microwave Theory and Techniques, vol. MIT-24, No. 9 (Sep. 1976).
Adams, R.C., et al., “COMWIN Antenna System Fiscal Year 200 Report,” SPAWAR, Technical Report 1836, (Sep. 2000).

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