Title :
A simple method for the evaluation of microwave mixer diodes
Author :
Zaghloul, H. ; Van Kalleveen, T.H.T. ; Hansen, C.H. ; Buckmaster, H.A.
Author_Institution :
Dept. of Phys., Calgary Univ., Alta., Canada
Abstract :
The authors describe a novel method for the evaluation of the various microwave (MW) mixer diodes which can be used in electron paramagnetic resonance (EPR) spectrometers. The advantage of this method over other methods is that it is optimized for EPR applications and determines the optimum operating conditions for each MW diode. The authors describe the instrumentation and the experimental procedure used and report the results of performing such an evaluation on various MW diodes. The results presented show that some Schottky-barrier diodes perform as well as tunnel diodes in EPR spectrometers using a magnetic field modulation frequency of less than 1 kHz
Keywords :
Schottky-barrier diodes; electric noise measurement; electron device noise; magnetic resonance spectroscopy; microwave spectroscopy; mixers (circuits); paramagnetic resonance; random noise; semiconductor device testing; tunnel diodes; 1 kHz; EPR spectrometers; Schottky-barrier diodes; bridge; electric noise; electron paramagnetic resonance; magnetic field modulation frequency; microwave mixer diodes; random noise measurement; tunnel diodes; Electrons; Frequency modulation; Instruments; Magnetic fields; Microwave theory and techniques; Optimization methods; Paramagnetic resonance; Performance evaluation; Schottky diodes; Spectroscopy;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1990. IMTC-90. Conference Record., 7th IEEE
Conference_Location :
San Jose, CA
DOI :
10.1109/IMTC.1990.65975
