Wireless Power Transfer using Microwaves at 2.45 GHz ISM band. | [Proceedings 6th International Bhurban Conference on Applied Sciences and Technology • 2009]

Author(s):

1. Muhammad Inam Abbasi: Center for Advanced Studies in Engineering (CASE), Islamabad, Pakistan

2. Syed Atif Adnan: Center for Advanced Studies in Engineering (CASE), Islamabad, Pakistan

3. Farrukh Kamran: Center for Advanced Studies in Engineering (CASE), Islamabad, Pakistan

4. Muhammad Amin: Institute of Space Technology (IST), Islamabad, Pakistan

Abstract:

We have demonstrated wireless power transfer by coupling RF power from a microwave oven magnetron RF source using a dipole at optimum position within the cavity. A 40dBm coupled power is transmitted using a monopole corner reflector antenna having gain of 14.97dBi and a half power beam width of 22. At the receiving end a patch antenna is placed at variable distances ranging from 0.307 meters (1 foot) to 4 meters (13 feet). The measured power received varies from 25dBm to 3dBm which is in close agreement with the theoretically calculated value using Friis transmission equation. The received RF power is simulated on Multisim with a rectifier circuit and it is shown that an efficiency of 5.5% to 0.2% with respect to the transmitted power can be achieved as the distance is varied from 0.307 meters to 4 meters.

Page(s): 99-102

DOI: DOI not available

Published: Journal: Proceedings 6th International Bhurban Conference on Applied Sciences and Technology , Volume: 2, Issue: 0, Year: 2009

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