Abstract :
The availability of precision coaxial connectors which meet the specifications of the IEEE Subcommittee on Precision Coaxial Connectors has removed an important obstacle to the development of higher accuracy measurements systems over the frequency range from audio to 18 GHz. Some of the advances in techniques and standards which have resulted or are presently possible for measurements of impedance, VSWR, attenuation, phase, power, and dielectric properties of materials are reviewed. Problems relating to the connection of unknowns and standards to the terminals of an instrument are discussed with respect to measurements at audio frequencies, radio frequencies, and microwave frequencies.
