RECEIVER INCLUDING LINEARITY COMPENSATION IN THE RECEIVE BAND

摘要

A receiver including linear compensation in a receive band is provided to insert a linear compensation circuit into an upper line with regards to a tuner, so that the linear compensation circuit supplies opposite properties to a low noise amplifier in order to compensate for a linear defect. An IF band signal receiver(1) comprises as follows. An input terminal(2) is configured to receive a coaxial cable(5) for carrying a signal to an IF band. A filtering/matching unit(6) passes a signal having a random frequency within the IF band, and supplies an impedance matching function with the coaxial cable(5). A tuning circuit(7) is manufactured by using one IC including a low noise amplifier(70), and is connected to the filtering/matching unit(6). A compensation circuit(8) is disposed between the tuning circuit(7) and the filtering unit(6), and has opposite transmission properties to the low noise amplifier(70) in the IF band.