Knowledge in Wireless

RADIO FREQUENCY COMMUNICATION

It is written by a group of people of snist for the better understanding of the juniors in the club. It has been presented by technical advisory board of trc-snist. It contains detalils about radio frequency communication. It also contain details about like RFID etc and many more.

Underwater Wireless Communication

While wireless communication technology today has become part of our daily life, the idea of wireless undersea communications may still seem far-fetched. However, research has been active for over a decade on designing the methods for wireless information transmission underwater. Hence the motivation, and interest in wireless underwater communications. Together with sensor technology and vehicular technology, wireless communications will enable new applications ranging from environmental monitoring to gathering of oceanographic data, marine archaeology, and search and rescue missions.

Link budget design with path loss

all about Link budget design with path loss for wireless technology for be cse course complete

Mobile radio propogation

all about Mobile radio propogation for wireless technology for be cse

WIRELESS MOBILE CHARGING USING MICROWAVES

With mobile phones becoming a basic part of life, the recharging of mobile phone batteries has always been a problem . The mobile phones vary in their talk time and battery stand by according to their manufacturer and batteries. All these phones irrespective of their manufacturer and batteries have to be put to recharge after the battery has drained out. The main objective of their manufacturer and battery make. In this paper a new proposal has been made so as to make the recharging of the mobile phones is done automatically as you talk in your mobile phone! 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 2.45GHz. 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 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!