Newnes Radio and RF Engineering Pocket Book, 3rd Edition

51

d is the diameter of the inner conductor in mm

ε is the dielectric constant

When maximum operating frequencies for cable are listed it is the

TEM mode that is cited. Beware of attenuation, however, when mak-

ing selections for microwave frequencies. A particular cable may have

a sufficiently high TEM mode frequency, but still exhibit a high atten-

uation per unit length at X or Ku-bands.

References

Andrew Antennas, (1991). Catalogue 35, Illinois.

British Telecommunications (1992). Connect Direct, private circuits.BT,

London.

Kennedy, G. (1977). Electronic Communications Systems. McGraw-Hill

Kogashuka, Tokyo.

Terman, F.E. (1943), Radio Engineers’ Handbook, McGraw-Hill, London.

Winder, S.W. (2001). Newnes Te lecommunications Pocket Book. Butterworth-

Heinemann, ...