Diversity receiver and terminal

A terminal, comprising:

• a diversity receiver, comprising:
• a first main channel comprising:
• an antenna diplexer;
• a first main transmission channel coupled to a main antenna by using the antenna diplexer and configured to:
• generate a first transmit signal according to a first baseband signal, and send the first transmit signal to the main antenna by using the antenna diplexer;
• and
• a first main receiving channel configured to generate a third baseband signal according to a second receive signal received from the main antenna;
• and
• a first diversity channel comprising:
• a tunable bandpass filter;
• and
• a first diversity receiving channel coupled to a diversity antenna by using the tunable bandpass filter and configured to:
• perform bandpass filtering on a first receive signal based on a tunable passband, and generate a second baseband signal according to the filtered first receive signal, wherein the third baseband signal and the second baseband signal are a pair of diversity receive signals;
• and
• a processor coupled to the diversity receiver and configured to:
• generate the first baseband signal, and
• perform diversity receiving on the second baseband signal and the third baseband signal generated by the diversity receiver.

An integrated circuit, comprising:

• a first main transmission channel coupled to an antenna diplexer and configured to:
• generate a first transmit signal according to a first baseband signal, and send the first transmit signal to a main antenna by using the antenna diplexer;
• a first main receiving channel configured to generate a second baseband signal according to a first receive signal received from the main antenna;
• and
• a first diversity receiving channel coupled to a tunable bandpass filter and configured to:
• receive a second signal filtered by the tunable bandpass filter from a diversity antenna, and generate a third baseband signal according to the filtered second receive signal, wherein the second baseband signal and the third baseband signal are a pair of diversity receive signals.