Title :
Display of current/voltage relationships in power-transistor circuits operating at v.h.f.
Author :
Rouhof, H.W. ; Loeb, H.W.
Author_Institution :
Cranfield Institute of Technology, Department of Electrical & Control Engineering, Cranfield, UK
Abstract :
A method for the simultaneous measurement of voltage and current in v.h.f. microstrip circuits, and its application to the display of instantaneous I/V relationships in transistor power amplifiers, is described. The current waveform is obtained by integration of the voltage induced in a stripline coupling loop. Frequency response data are given, together with I/V characteristics for a 175 MHz transmitter output stage under various matching conditions.
Keywords :
display equipment; electric current measurement; power amplifiers; strip line components; voltage measurement;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19700327
