Abstract

Microwave planar triodes are investigated as low-noise devices for preamplifiers of high-resolution nuclear magnetic resonance spectrometers in the frequency band from 10 to 100 MHz. Noise sources, noise figures and a preamplifier circuit for planar triodes are considered. Planar triode noise performance is realistically evaluated by measurements under actual operating conditions. Comparison with other competitive low-noise devices in the frequency band from 10 to 100 MHz are given. A microwave planar triode preamplifier with high amplification stability has been designed; when operated with the optimum value of source conductance, it has a minimum noise figure of 0.35 dB at 24.3 MHz.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.