Title :
Broadband electronic impedance tuner
Author :
Pienkowski, D. ; Wiatr, Wojciech
Author_Institution :
Microwave Eng. Group, Technische Univ. Berlin, Germany
Abstract :
A novel design of multi-state impedance tuner for an on-wafer noise parameter measurement system is presented. It is based on just three commercial GaAs MMIC switches that connect into or out of the circuit six delay sections, composed of natural and artificial transmission lines, and thus provide 36 distinct impedances at each frequency. Using the D-optimal criterion from the design of experiments (DoE), the impedance distributions were optimised over the frequency range 50-2000 MHz.
Keywords :
III-V semiconductors; MMIC; circuit optimisation; circuit tuning; delay lines; design of experiments; electric impedance; electric noise measurement; gallium arsenide; high-frequency transmission lines; integrated circuit measurement; integrated circuit noise; microstrip lines; microwave measurement; microwave switches; 50 to 2000 MHz; DoE; GaAs; GaAs MMIC based broadband electronic impedance tuners; GaAs MMIC switches; artificial transmission lines; circuit delay sections; design of experiments D-optimal criterion; microstrip delay lines; microwave impedance tuners; multi-state impedance tuners; natural transmission lines; on-wafer noise parameter measurement systems; optimised impedance distributions; switched impedance circuit; tuner frequency range; Circuit noise; Frequency; Gallium arsenide; Impedance measurement; MMICs; Noise measurement; Switches; Switching circuits; Transmission line measurements; Tuners;
Conference_Titel :
Microwaves, Radar and Wireless Communications, 2002. MIKON-2002. 14th International Conference on
Print_ISBN :
83-906662-5-1
DOI :
10.1109/MIKON.2002.1017858
