| 摘要 |
A receiver (200) automatically compensates for intermodulation of an input signal. The receiver (200) is preceded by a receiver front-end (105) which is coupled to antennas (100-102) receiving the signal. The gain of the antenna path/frequency is calibrated and stored for all combinations of antenna path/frequency. When a signal is received, the receiver (200) determines the correct stored gain factor representing the antenna receiving the signal and the frequency of the signal. The gain factor is compared against a predetermined threshold, and if the gain factor is greater than the threshold, an attenuator (400) placed at the front of the receiver (200) is inserted to optimize signal intermodulation. If the gain factor less than the threshold, the attenuator (400) is bypassed to optimize the sensitivity of the receiver (200).
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