Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Guanghai Ding"'
Autor:
Derek Scarbrough, Renfeng Jin, James C. M. Hwang, Charles L. Goldsmith, Mohammad Javad Asadi, Guanghai Ding
Publikováno v:
Journal of Microelectromechanical Systems. 28:910-918
A closed-loop capacitance sensing and control mixed-signal CMOS circuit with a dedicated sensor electrode and a proportional-integral controller was designed to have a sensitivity of 1 fF, a settling time of $200~\mu \text{s}$ , and a voltage capacit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72bc025463c8f1d91e07c850247f5c23
https://doi.org/10.1109/jmems.2019.2929469
https://doi.org/10.1109/jmems.2019.2929469
Autor:
V. Gholizadeh, Zhibo Cao, Renfeng Jin, Guanghai Ding, Herman F. Nied, James C. M. Hwang, Charles L. Goldsmith, Mohammad Javad Asadi
Publikováno v:
2019 IEEE Asia-Pacific Microwave Conference (APMC).
A CMOS closed-loop control circuit was designed, fabricated, and tested for order-of-magnitude improvement of the robustness of a MEMS varactor against ambient temperature change. The control is based on real-time sensing of the capacitance of the ME
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::350f033b9ea55ce26469ebf4ead8c445
https://doi.org/10.1109/apmc46564.2019.9038853
https://doi.org/10.1109/apmc46564.2019.9038853
Publikováno v:
2019 41st Annual EOS/ESD Symposium (EOS/ESD).
An investigation of different forward-bias and reverse-bias on-resistance in diodes is presented. The impact of this often neglected effect on ESD protection design is demonstrated. A macro-model of a diode has been developed to account for the bias
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b45164a071ece7cd5de7371fdab6b7a
https://doi.org/10.23919/eos/esd.2019.8869988
https://doi.org/10.23919/eos/esd.2019.8869988
Autor:
V. Gholizadeh, James C. M. Hwang, Z. Cao, Renfeng Jin, Herman F. Nied, Charles L. Goldsmith, Guanghai Ding, Mohammad Javad Asadi
Publikováno v:
2018 IEEE International Conference on Integrated Circuits, Technologies and Applications (ICTA).
To make MEMS varactors more robust and reliable, a closed-loop control circuit was designed to sense the varactor capacitance and tune the MEMS bias in real time to adjust the capacitance to the desired value within 1 fF and in 200 $\mu$s. The design
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d00ad2914caa02bef0846550e9aa5603
https://doi.org/10.1109/cicta.2018.8706054
https://doi.org/10.1109/cicta.2018.8706054
Publikováno v:
IEEE Electron Device Letters. 31:839-841
A novel technique is proposed for determining the actual pixel size in dense arrays of infrared detectors. The technique is based on probing individual pixels in an array and analyzing the parasitic bipolar transistor formed between them to determine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7bff518c18d89d2783b5f636b5ff4eb
https://doi.org/10.1109/led.2010.2049981
https://doi.org/10.1109/led.2010.2049981
Autor:
John E. Bowers, Leif A. Johansson, Yifei Li, Guanghai Ding, Renyuan Wang, Jonathan Klamkin, Peter R. Herczfeld
Publikováno v:
IEEE Photonics Technology Letters. 21:1405-1407
Phase modulator linearity is an important concern for high dynamic range phase modulated optic links. However, the determination of phase modulator linearity is difficult as it requires an optical phase demodulator that generally contains nonlinear d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94d71b409199fe276d3b4f9644851382
https://doi.org/10.1109/lpt.2009.2026727
https://doi.org/10.1109/lpt.2009.2026727
Autor:
James C. M. Hwang, Guanghai Ding, David Molinero, Yaqing Ning, Cristiano Palego, Xi Luo, C. L. Goldmisth
Publikováno v:
2013 IEEE MTT-S International Microwave Symposium Digest (MTT).
Intermodulation distortion in MEMS capacitive switches was analyzed both theoretically and experimentally as a function of tone spacing and RF power. The theory and experiment consistently showed that, under high RF power, additional distortion was c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85907e0e275ab2754685fd08792b89da
https://doi.org/10.1109/mwsym.2013.6697357
https://doi.org/10.1109/mwsym.2013.6697357
Autor:
Xuanhong Cheng, Caroline Multari, David Molinero, James C. M. Hwang, Caterina Merla, Xi Luo, Cristiano Palego, Yaqing Ning, Guanghai Ding
Publikováno v:
2013 IEEE MTT-S International Microwave Symposium Digest (MTT).
A novel broadband microchamber for electrical detection of live and dead biological cells was designed, fabricated and tested. The microchamber was formed between a gold coplanar waveguide fabricated on a quartz slide and the microfluidic channels fa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::741b14fbdcebd0c35b754f211ab13945
https://doi.org/10.1109/mwsym.2013.6697355
https://doi.org/10.1109/mwsym.2013.6697355
Autor:
Guanghai Ding, James C. Hwang, W. Wang, David Molinero, Charles L. Goldsmith, Cristiano Palego, Subrata Halder
Publikováno v:
2012 IEEE/MTT-S International Microwave Symposium Digest.
A CMOS control circuit capable of closed-loop capacitance sensing and control of RF MEMS switches was designed, fabricated, and tested. The control was based on fine-tuning the magnitude of the bias voltage of the switches according to the difference
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be2329167ff91909648435871120c9a5
https://doi.org/10.1109/mwsym.2012.6257781
https://doi.org/10.1109/mwsym.2012.6257781
Publikováno v:
IEEE Electron Device Letters; Aug2010, Vol. 31 Issue 8, p839-841, 3p