Title :
A 40 to 50 GHz HEMT test fixture
Author :
Prabhu, Akshata ; Erickson, Nicholas
Author_Institution :
Five Coll. Radio Astron. Obs., Massachusetts Univ., Amherst, MA, USA
Abstract :
A probe station has been built in the 40 to 50 GHz band to accurately measure the noise and S-parameters of MM-wave HEMT´s. The probe impedances are close to the optimum terminating impedance of the HEMT and have very low loss. This in turn is expected to enhance the accuracy of the measured noise and S-parameters. A TRL calibration using microcoax lines is being investigated. The fixture and the calibration procedure are described.<>
Keywords :
S-parameters; calibration; electric noise measurement; high electron mobility transistors; millimetre wave field effect transistors; millimetre wave measurement; probes; semiconductor device noise; semiconductor device testing; test equipment; 40 to 50 GHz; EHF; HEMT test fixture; MM-wave HEMT; S-parameters; TRL calibration; microcoax lines; noise measurement; probe station; Circuit testing; Coaxial components; Conductors; Extraterrestrial measurements; Fixtures; HEMTs; Impedance; Noise measurement; Probes; Waveguide transitions;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.405954
