Patent ID: 8351850
Filing Date: 2013-01-08
Classification: H04B

Abstract:
1. An apparatus for emitting and receiving radio-frequency signals, comprising: means for transmitting at least one signal using an antenna; means for receiving signals by the antenna; means for isolating the means for transmitting from the means for receiving; means for tapping a first part of the signal to be transmitted; means for controlling amplitude and phase of the first part of the signal; means for introducing the first part of the signal in the means for receiving after said first part of the signal has been amplified and phase-shifted, so as to cancel in the means for receiving interference due to portions of the signal to be transmitted that have entered the means for receiving; wherein, the means for transmitting comprises first means for combining, which is configured such that a plurality of signals are transmittable of using the antenna; the apparatus further comprises a plurality of means for tapping a respective first part of each of the respective signals to be transmitted; the apparatus further comprises a plurality of means for controlling amplitude and phase of each of the respective first parts of the signals; and the means for introducing the first part of the signal in the means for receiving comprises second means for combining, which is configured such that the first part of each of the signals is introduceable in the means for receiving after said first part of each of the signals has been amplified and phase-shifted.