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Self-powered, hybrid antenna-magnetoresistive sensor for magnetic field detection
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10.1063/1.3562340
/content/aip/journal/apl/98/10/10.1063/1.3562340
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/10/10.1063/1.3562340
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic of the hybrid device incorporating a three turn antenna and a SV sensor. (b) Detail of the CT of the antenna on top and in parallel with the SV.

Image of FIG. 2.
FIG. 2.

(a) Optical image of the microfabricated device, showing the region of the CT on top of the SV in the inset on the right. (b) Transmission electron microscopy view of a focused-on-beam cross section through the sensor/lead/CT area.

Image of FIG. 3.
FIG. 3.

(a) Chip with hybrid sensor wirebonded to a PCB platform. (b) Activation/excitation antenna. (c) Schematic of the experiment to perform the dc and ac field detection.

Image of FIG. 4.
FIG. 4.

(a) Spectrum of the SV output of the experiment for dc field detection, where the peaks at and are observed. The inset shows the peak at in detail for two different fields. (b) Spectrum of the SV sensor acquired in the experiment to detect ac fields. The peaks at (130 MHz) and are observed. The calculated values and correspondent error bars are also depicted.

Image of FIG. 5.
FIG. 5.

Variation in the SV output at (acquired in the dc experiment) and the amplitude variation in the peaks at (obtained for the ac experiment) as function of the amplitude of the external field applied. The theoretical curves calculated for both experiments are also shown (dashed line for dc and straight line for ac). The inset shows the transfer curve of the SV sensor.

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/content/aip/journal/apl/98/10/10.1063/1.3562340
2011-03-08
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Self-powered, hybrid antenna-magnetoresistive sensor for magnetic field detection
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/10/10.1063/1.3562340
10.1063/1.3562340
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