Broadband 300 MHz IF Amplifier Design

Abstract

Short hop radio systems of the type described in this issue require broadband intermediate frequency amplifiers in the range of a few hundred MHz which have a large gain control range and stable characteristics with respect to temperature; they must also make efficient use of bias power and have well behaved noise properties. This paper describes the design of such amplifiers. We give extensive measurements for an amplifier with a 1 dB bandwidth of 120 MHz centered at 300 MHz and an automatic gain control range of 43 dB.