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A capacitance ratio to frequency ratio converter using switched-capacitor techniques
Sensors and Actuators A: Physical, 1991Abstract This paper introduces a switched-capacitor circuit for interfacing capacitance ratio sensors to digital instrumentation.
J.R. Jordan +3 more
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Measurement of optical frequency ratios using a spectrally broadened frequency comb
Nonlinear Guided Waves and Their Applications, 2002Stimulated by the development of optical frequency comb generators based on Kerr-lens modelocked femtosecond lasers [1,2], the absolute frequencies of several narrow transition lines in cold atoms or single stored ions, such as H, Ca, Yb+ were recently measured by phase- coherently linking optical signals to a cesium-clock controlled hydrogen maser [3 ...
Nils Haverkamp +4 more
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An Enhanced Frequency-Ratio Coupled-Line Dual-Frequency Wilkinson Power Divider
IEEE Transactions on Circuits and Systems II: Express Briefs, 2018This brief presents a novel design of a dual-band equal split Wilkinson power divider. It is based around a single coupled line section as core and uses stub-based port matching networks at each of the ports. It then incorporates only one isolation resistor, which is independent of frequency-ratio, for achieving perfect isolation.
M. H. Maktoomi +2 more
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Control of Oil Whip Frequency Ratio
Journal of Basic Engineering, 1960Experiments described in this paper show that a rotatable intermediate sleeve in a journal bearing will change the average oil film velocity and hence can be made to control oil whip frequency. This device should allow oil whip frequency control of shafts running at two or more times their critical speed.
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A Low-frequency-ratio Frequency-multiplexed Reflective Meta-atom
2022 IEEE 10th Asia-Pacific Conference on Antennas and Propagation (APCAP), 2022Zhichao Pang, Hexiu Xu, Mingzhao Wang
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Dual-Frequency Phase Shifter Design with Large Frequency Ratio
2023 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2023Yuan Wang, Yun Liu, Chao Ji
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Low-Frequency/High-Frequency Ratio and Functional Outcome
Critical Care Medicine, 2003Abhik K. Biswas, John F. Sommerauer
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Frequency ratio measurements at 18-digit accuracy using an optical clock network
Nature, 2021Sarah L Bromley +2 more
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