Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means
Reexamination Certificate
2011-05-31
2011-05-31
Leja, Ronald W (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Load shunting by fault responsive means
Reexamination Certificate
active
07952845
ABSTRACT:
A V-band radio frequency (RF) electrostatic discharge (ESD) protection circuit uses meander inductors and diodes connecting in series to provide ESD protection. When operated in low frequency, the static electricity input from a RF pad may discharge to ground or to a voltage VDD through the meander inductor and the diode, so that a core circuit is not damaged by ESD. When operated in high frequency, the high frequency stray effect of the core circuit is substantially reduced due to impedance isolation generated by the meander inductors. Therefore, a low-noised amplifier (LNA) can receive an accurate high frequency input signal.
REFERENCES:
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patent: 2006/0151851 (2006-07-01), Pillai et al.
patent: 2009/0195946 (2009-08-01), Kleveland
patent: 2010/0277840 (2010-11-01), Huang et al.
Bo-Jr Huang, et al., “Design and Analysis for a 60-GHz Low-Noise Amplifier With RF ESD Protection”, IEEE Trans. on Microwave Theory and Techniques, vol. 57, No. 2, Feb. 2009, pp. 298-305.
Huang Bo-Jr
Wang Huei
Leja Ronald W
National Taiwan University
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