MIMO antenna leakage canceller system
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United States of America Patent
Stats
-
May 1, 2018
Issued Date -
N/A
app pub date -
Oct 14, 2015
filing date -
Oct 27, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system includes a first duplexer that receives samples of a signal transmitted from a first transmit portion of a communication device and outputs a filtered signal based on sampled transmitted signal. A first modulator adjusts the filtered signal based on at least one of a phase, amplitude, and delay of leakage associated with the transmitted signal. The leakage corresponds to leakage from the first transmit portion of the communication device to a first receive portion of the communication device. The first modulator provides a leakage cancellation signal based on the adjusted filtered signal. A first coupler subtracts the leakage cancellation signal from a signal received by the first receive portion of the communication device.
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