Wireless Charging of Mobile Phones Using Microwaves
Wireless Charging of Mobile Phone Using Microwaves
Chapter 1
The Problem and Its Background
It is hard to believe that fifteen years ago, mobile phones were rarity. Most of the early phones were called “car phones” because of its size. It was too large and hard to carry around in a pocket or purse.
Early phones were just for talking. Gradually, features like voicemail were added, but the main purpose was to talk. Eventually, phone manufacturers began to realize that they could integrate other technologies into their phone and expand to its features. The earliest smart phones let users access email, and use the phone as a fax machine, pager, and address book. (insite.artinstitute.edu)
These electromagnetic waves are made up of two parts. The first part is an electric field. The second part is a magnetic field. So that is why they are called electromagnetic waves. The two fields are at right angles to each other. (www.scribd.com)
Nowadays, mobile phones have been part of people’s life. Some are having a hard time without using it. They communicate using these phones. But most of the time, as the user uses the mobile phone, the battery lessen its charge. And when the time comes that the phone has to be used, importantly, the battery needs to be charged first before taking it anywhere.
This is done by use of microwaves. The microwave signal is transmitted from the transmitter along with the message signal using special kind of antennas called slotted wave guide antenna at a frequency is 2.45 GHz. There are minimal additions, which have to be made in the mobile handsets, which are the addition of a sensor, a Rectenna, and a filter. With the above setup, the need for separate chargers for mobile phones is eliminated and makes charging universal. Thus the more you talk, the more is your mobile phone charged! With this proposal the manufacturers would be able to remove the talk time and battery stand by from their phone specifications! (www.studymode.com)
Chapter 1
The Problem and Its Background
It is hard to believe that fifteen years ago, mobile phones were rarity. Most of the early phones were called “car phones” because of its size. It was too large and hard to carry around in a pocket or purse.
Early phones were just for talking. Gradually, features like voicemail were added, but the main purpose was to talk. Eventually, phone manufacturers began to realize that they could integrate other technologies into their phone and expand to its features. The earliest smart phones let users access email, and use the phone as a fax machine, pager, and address book. (insite.artinstitute.edu)
These electromagnetic waves are made up of two parts. The first part is an electric field. The second part is a magnetic field. So that is why they are called electromagnetic waves. The two fields are at right angles to each other. (www.scribd.com)
Nowadays, mobile phones have been part of people’s life. Some are having a hard time without using it. They communicate using these phones. But most of the time, as the user uses the mobile phone, the battery lessen its charge. And when the time comes that the phone has to be used, importantly, the battery needs to be charged first before taking it anywhere.
This is done by use of microwaves. The microwave signal is transmitted from the transmitter along with the message signal using special kind of antennas called slotted wave guide antenna at a frequency is 2.45 GHz. There are minimal additions, which have to be made in the mobile handsets, which are the addition of a sensor, a Rectenna, and a filter. With the above setup, the need for separate chargers for mobile phones is eliminated and makes charging universal. Thus the more you talk, the more is your mobile phone charged! With this proposal the manufacturers would be able to remove the talk time and battery stand by from their phone specifications! (www.studymode.com)