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Abstract
This paper describes the development of an S-Band multiplexer having three non-contiguous narrow-band channels. The multiplexer is meant for separating the two types of data, that is, from multi-Spectral Scanner and Return Beam Vidicon Sensors, and also Unified S-Band Channel for tracking purposes. These signals are received from a Landsat satellite by an earth station established in India. The frequency bands of the channels are 2229.5±10 MHz, 2265.50± 10 MHz and 2287.5±2.5 MHz. Measured results of the complete multiplexer including group-delay and the effect of temperature are presented in this paper.
Additional information
Notes on contributors
S. Deivendran
Deivendran, S: (b. 1951 April 01). Received the BE degree in Electronics and Telecommunication Engg. from C.I.T. Coimbatore, Madras University in 1973. Joined Space Applications Centre, Indian Space Research Organisation, Ahmedabad in April 1974. Engaged in the design and development of various types of antennas and microwave subsystems.
K.N. Shankara
Shankara K N (Dr): (b. 1945 May 7, Bhadravathi, Karnataka). Obtained PhD degree in Electrical Communication Engineering from Indian Institute of Science, Bangalore in 1972. Joined Indian Space Research Organisation in 1971 and at present Head of Microwave Components and Subsystems Division, Space Applications Centre, Ahmedabad. He is a member of IETE.