Patent ID: 7702305
Filing Date: 2010-04-20
Classification: H03J,H04B

Abstract:
1. An instrument receiver architecture comprising: a low-band IF channel having as an input an RF signal and providing as an output a low-band IF signal; a bank of preselection filters having as an input the RF signal and providing as an output a selected frequency band of the RF signal; a high-band IF channel having as an input the selected frequency band and providing as an output a high-band IF signal; and means for selecting one of the low-band and high-band IF signals for further processing; the low-band IF channel comprising an up-converting stage having as an input the RF signal and providing as an output the low-band IF signal for input to the selecting means; and wherein the high-band IF channel comprises a down-converting stage having as an input the selected frequency band and providing as an output the high-band IF signal for input to the selecting means, the low-band and high-band IF signals having different intermediate frequencies.