Satellite digital multimedia broadcasting receiver of single tuning type

A satellite digital multimedia broadcasting (DMB) receiver of a single tuning type, comprising:

• a circular polarization antenna for receiving a circularly polarized satellite DMB signal from a DMB satellite;
• a linear polarization antenna for receiving a linearly polarized repeated DMB signal from a complementary terrestrial repeater;
• a signal selection switch for selecting one of the satellite DMB signal received by the circular polarization antenna and the repeated DMB signal received by the linear polarization antenna in response to a switching signal;
• a DMB tuner for removing a carrier frequency component of an output DMB signal from the signal selection switch to output a zero IF signal;
• a code division multiplex (CDM) demodulation unit for performing a CDM demodulation operation with respect to the zero IF signal from the DMB tuner;
• and
• a controller for outputting the switching signal to the signal selection switch if power of an output signal from the CDM demodulation unit is lower than reference power.