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

• Main Author: MOJDEH RASTGO , DASTJERDI
• Format: Final Year Project
• Language: English
• Published: 2009
• Online Access: http://utpedia.utp.edu.my/3269/1/0001.pdf; http://utpedia.utp.edu.my/3269/

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.