EMI reduction in a broadband LOS link at millimeterwave by spread spectrum technique

Abstract

This paper is based on broadband direct sequence spread spectrum (DS-SS) technology. Such a system will be very useful for information technology and networking for establishing the 'Global Village' in the 21st century. The use of millimeter waves allows very broadband multimedia communication required for very high speed information transfer with high reliability; such a system will be an attractive solution for defence and police wireless communications, cellular phones, the Internet and satellite communications due to its inherent EMI rejection capability. The above features will be implemented in a millimeter wave line of sight (LOS) link at 30 GHz with a multimedia communication facility to be operated between the Centenary Building of Calcutta University and Sisisr Mitra Bhaban of the Institute of Radiophysics and Electronics, over a line of sight distance of 1 km. The distance may also be increased up to 10 km if necessary, with a higher transmitter power at 30 GHz.