Title :
An accurate method for measuring input impedance of radio frequency power amplifier
Author :
Liu, F. ; Zheng, H.-X. ; Gao, F.Y.
Author_Institution :
Inst. of Antenna & Microwave Tech., Tianjin Univ. of Technol. & Educ., Tianjin, China
Abstract :
To increase measurement accuracy of input impedance, a power amplifier in radio frequency is studied in this paper. A general load-pull method is analyzed in detail, and causations of measuring errors have been found. On the basis of this analysis, a three-steps measuring method is developed. It can be used to measure input/output impedance of the high-power devices in radio frequency, shows feasible and accurate. Experimental results agree very well with theoretical.
Keywords :
electric impedance measurement; power amplifiers; radiofrequency amplifiers; general load-pull method; input impedance measurement; radio frequency power amplifier; three-steps measuring method; Antenna measurements; Impedance; Impedance measurement; Power amplifiers; Power measurement; Radio frequency; Tuners;
Conference_Titel :
Signals Systems and Electronics (ISSSE), 2010 International Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-6352-7
DOI :
10.1109/ISSSE.2010.5607141
