Printed wideband notched antenna for wireless USB dongle attached to laptop computer

Ban, Yong‐Ling; Chen, J.-H.; Li, Le‐Wei; Hu, Wei

doi:10.1080/09205071.2013.743499

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…The fundamental WPT theorem is based on the equations of Maxwell. Two equations are known as the Ampere circuit and the Faraday induction laws [13]. The Ampere circuit law describes a correlation between electric currents and the magnetic fields generated by them.…”

Section: Methodsmentioning

confidence: 99%

Battery Charger Prototype Design for Tire Pressure Sensor Battery Recharging

Kuncoro

Sung

Kuan

2019

Sensors

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One of the important devices in a vehicle is the tire pressure sensor. This device couples with other instruments inside the vehicle assisting the drivers in knowing the correct information about their vehicle’s tire pressure. This information helps improve vehicle handling, increases gas mileage, and extends tire lifespan. Once mounted inside the tire, the tire pressure sensor is a stand-alone device. It is powered by a battery that has a limited operating life. Due to it being mounted inside the tire, the driver does not frequently check tire pressure sensor battery. If the battery runs out, battery replacement is not an effective option. This work presents a battery charging prototype that recharges the tire pressure sensor battery. The developed device uses electromagnetic principles to wirelessly transmit power to a device that needs power. We designed a prototype and conducted some laboratory scale experiments. Experimental and validation were based on a tire pressure sensor developed by Kenda Rubber Ind. Co., Ltd, Taiwan (R.O.C). This tire pressure sensor consumes power from a 4.8 V 700 mAh Li-ion rechargeable battery. The experimental results show that the prototype can transmit 4.9 V induction voltage. The maximum current is up to 850 mA with the optimum transmission distance at around of 1.5 cm. This prototype recharges the tire pressure sensor battery wirelessly to extend its battery-power life.

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Section: Methodsmentioning

confidence: 99%