https://www.electronicdesign.com/technologies/analog/article/21757173/bipolar-rf-transistors-offer-25-ghz-transition-frequency
Bipolar RF Transistors Offer 25-GHz Transition Frequency | Electronic Design
Two new silicon npn planar RF transistors can serve as RF front ends for analog and digital wireless communication systems up to 3 GHz. The TSDF2005W and...
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https://www.nist.gov/publications/optical-frequency-measurements-6s2s12-6p2p32-transition-133cs-using-atomic-beam-and
Optical frequency measurements of 6s2S1/2 - 6p2P3/2 transition in 133Cs using an atomic beam and a...
Feb 17, 2017 - High-resolution spectroscopy and a femtosecond laser frequency comb are used to determine the optical frequencies between the components of the D2 li
https://www.aanda.org/articles/aa/ref/2025/04/aa51413-24/aa51413-24.html
An activity transition in FRB 20201124A: Methodological rigor, detection of frequency-dependent...
an activity