scholarly journals Readout Distance Enhancement of the Passive Wireless Multi-Parameter Sensing System Using a Repeater Coil

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
Lifeng Wang ◽  
Lei Dong ◽  
Qing-an Huang
Keyword(s):  
Power Supply ◽  
Printed Circuit Board ◽  
Supply Voltage ◽  
Copper Wire ◽  
Experimental Results ◽  
Circuit Board ◽  
Power Supply Voltage ◽  
Detection Distance ◽  
Sensing System ◽  
Backscatter Modulation

A repeater coil is used to extend the detection distance of a passive wireless multi-parameter sensing system. The passive wireless sensing system has the ability of simultaneously monitoring three parameters by using backscatter modulation together with channel multiplexing. Two different repeater coils are designed and fabricated for readout distance enhancement of the sensing system: one is a PCB (printed circuit board) repeater coil, and the other is a copper wire repeater coil. Under the conditions of fixed voltage and adjustable voltage, the maximum readout distance of the sensing system with and without a repeater coil is measured. Experimental results show that larger power supply voltage can help further increase the readout distance. The maximum readout distance of the sensing system with a PCB repeater coil has been extended 2.3 times, and the one with a copper wire repeater coil has been extended 3 times. Theoretical analysis and experimental results both indicate that the high Q factor repeater coil can extend the readout distance more. With the copper wire repeater coil as well as a higher power supply voltage, the passive wireless multi-parameter sensing system finally achieves a maximum readout distance of 13.5 cm.

Power Supply Voltage Dependence of Within-Die Delay Variation of Regular Manual Layout and Irregular Place-and-Route Layout

2011 ◽  
Vol E94-C (6) ◽  
pp. 1072-1075
Author(s):  
Tadashi YASUFUKU ◽  
Yasumi NAKAMURA ◽  
Zhe PIAO ◽  
Makoto TAKAMIYA ◽  
Takayasu SAKURAI
Keyword(s):  
Power Supply ◽  
Voltage Dependence ◽  
Supply Voltage ◽  
Power Supply Voltage ◽  
Place And Route ◽  
Delay Variation

Power Supply Voltage Control for Eliminating Overkills and Underkills in Delay Fault Testing

2016 ◽  
Vol E99.C (10) ◽  
pp. 1219-1225
Author(s):  
Masahiro ISHIDA ◽  
Toru NAKURA ◽  
Takashi KUSAKA ◽  
Satoshi KOMATSU ◽  
Kunihiro ASADA
Keyword(s):  
Power Supply ◽  
Supply Voltage ◽  
Voltage Control ◽  
Fault Testing ◽  
Power Supply Voltage ◽  
Delay Fault ◽  
Delay Fault Testing

AlInAs/GaInAs on InP HEMTs for low power supply voltage operation of high power-added efficiency microwave amplifiers

1993 ◽  
Vol 29 (15) ◽  
pp. 1324 ◽  
Author(s):  
L.E. Larson ◽  
M.M. Matloubian ◽  
J.J. Brown ◽  
A.S. Brown ◽  
M. Thompson ◽  
...  
Keyword(s):  
Low Power ◽  
High Power ◽  
Power Supply ◽  
Supply Voltage ◽  
Power Supply Voltage ◽  
Power Added Efficiency ◽  
Microwave Amplifiers

Virtual Ground Fence: A Simple Method for Protection against High Frequency Simultaneous Switching Noise

2012 ◽  
Vol 2012 (1) ◽  
pp. 001081-001084 ◽  
Author(s):  
Jesse Bowman ◽  
A. Ege Engin
Keyword(s):  
Power Distribution ◽  
Distribution System ◽  
Power Efficiency ◽  
Printed Circuit Board ◽  
Supply Voltage ◽  
Circuit Board ◽  
Voltage Source ◽  
Accurate Estimation ◽  
Simple Method ◽  
Power Distribution System

When integrating sensitive RF analog devices with complex VLSI digital components, simultaneously switching drivers cause supply voltage fluctuations which can propagate both horizontally and vertically between the power/ground planes. The same voltage source on a printed circuit board can be shared to increase power efficiency and reduce space used. In order to accomplish this, on board filtering is needed to isolate the noise between these two types of devices for proper operation. Hence, accurate estimation and improvement of the performance of power/ground planes is critical in a mixed-signal system. We present a new method to minimize the noise transfer at high frequencies to the power distribution system, called the Virtual Ground Fence. At its basic level, the Virtual Ground Fence consists of quarter-wave transmission-line stubs that act as short circuits between power and ground planes at their design frequency. We will present various configurations of Virtual Ground Fence for different coupling scenarios.

Transistor Width Effect on the Power Supply Voltage Dependence of α-SER in CMOS 6T SRAM

2020 ◽  
Vol 67 (5) ◽  
pp. 811-817
Author(s):  
G. Torrens ◽  
A. Alheyasat ◽  
B. Alorda ◽  
S. Barcelo ◽  
J. Segura ◽  
...  
Keyword(s):  
Power Supply ◽  
Voltage Dependence ◽  
Supply Voltage ◽  
Power Supply Voltage ◽  
Width Effect
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