System and Method for Attenuating a Signal in a Radio Frequency System
First Claim
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1. A method comprising:
- coupling power from a transmitter to form a first signal;
conditioning the first signal to form a second signal; and
coupling the second signal to an input of a receiver, wherein conditioning comprises adjusting the second signal to combine in anti-phase with a leakage signal coupled from the transmitter to the input of the receiver such that the leakage signal is attenuated.
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Abstract
In accordance with an embodiment, a method includes coupling power from a transmitter to form a first signal, conditioning the first signal to form a second signal, and coupling the second signal to an input of a receiver. Conditioning includes adjusting the second signal to combine in anti-phase with a leakage signal coupled from the transmitter to the input of the receiver such that the leakage signal is attenuated.
90 Citations
27 Claims
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1. A method comprising:
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coupling power from a transmitter to form a first signal; conditioning the first signal to form a second signal; and coupling the second signal to an input of a receiver, wherein conditioning comprises adjusting the second signal to combine in anti-phase with a leakage signal coupled from the transmitter to the input of the receiver such that the leakage signal is attenuated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for attenuating leakage power from a transmitter to a receiver, the system comprising:
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a first input port configured to be coupled to the transmitter; and a signal conditioning circuit having an input port configured to be coupled to the transmitter, and an output port configured to be coupled to an input of the receiver, the signal conditioning circuit configured to produce an anti-phase signal at the output port that attenuates a leakage signal coupled from the transmitter to the input of the receiver. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A radio frequency circuit comprising:
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a transmitter configured to provide a transmission signal for a first system; a first receiver configured to operate with a second system; and a conditioning circuit coupled between the transmitter and the first receiver, the conditioning circuit configured to attenuate a leakage signal transmitted from the transmitter to the first receiver by producing an anti-phase signal and summing the anti-phase signal at an input of the first receiver. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification