APPLICATION OF THE POWER LINE SYSTEM FOR TRANSMISSION OF RFAND MICROWAVE SIGNALS

The Power Line System has been used for purposes other than the
transmission of Electrical power, such as low data rate transmission and even AM
broadcast transmission. The broad band over power line (BPL) communication (also
known as the power line communication or PLC) has become the topic of
considerable interest during the last decades. This technology has been proposed for
high data transmission and for a variety of applications including customer Internet
access, emergency communications, and utility grid control. The objective of this
project is to evaluate the use of the power line system in a typical commercial
building for high frequency RF signals (e. g. 100 MHz to 3 GHz) and to develop
simple models of the transmission line to evaluate the effects of the attenuation such
as line loss and radiation in the power line distribution system and also to analyze the
electric and magnetic fields around the lines In order to achieve the objectives of the
project, the simple model of the transmission line would be developed to corroborate
the model measurements to the result obtained and to evaluate the effect of the
attenuation such as line loss and radiation on the transmission line. This will help to
evaluate the communication potential of the system. By the end of the project the
objectives mentioned above has been achieved the electric field around the line has
been analyzed and formulated, the transmission model has been developed and
measurements have been obtained and analyzed. It is found that there is high
attenuation in the BPL system which is frequency dependent as well as background
noises. This significant problems over higher frequencies almost make it impossible
to use this system for communication purposes.