Title :
A Precise Sweep-Frequency Method of Vector Impedance Measurement
Author_Institution :
Bell Telephone Laboratories, Inc., Murray Hill, N.J.
Abstract :
The impedance of a two-terminal network is defined completely by the insertion loss and phase shift it produces when inserted between known sending and receiving impedances. Recent advances in precise wide-band phase and transmission measuring circuits have permitted practical use of this principle. Reactive and resistive impedance components are read directly from a simple graphical chart in which frequency is not a parameter. The basic principle described promises attractive possibilities in many cases of impedance measurements where present methods are inadequate.
Keywords :
Distributed parameter circuits; Frequency measurement; Impedance measurement; Insertion loss; Loss measurement; Mutual coupling; Phase measurement; Position measurement; Repeaters; Transmission line measurements;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1951.273601
