Front End Integrated RF Unit for Efficient Linear array Imager

Abstract

Efficient Linear array Imager (ELI)is a cross telescope capable of producing 64 beams simultaneously in the sky. It uses 16 receivers and each is likely to use 4 IF chains, making a total of 64 numbers. Clearly, such a large number of receiversrequire optimisation of volume, power and cost. Following the model of commercial LNBCs, we have made a prototype front end Integrated RF unit for use with ELI. This integrates front end filters, mixer section and postsamplifiers, all in a board size of 6 cm x 5 cm. This integrated RF units has avoided multiple SMA connectors and thereby improving reliability at the cost of inter-changeability. In this technical report, we describe the effort put in development of this prototype.