Invention Grant
US09000860B2 Low-loss TX-to-RX isolation using electrical balance duplexer with noise cancellation
有权
使用具有噪声消除功能的电气平衡双工器进行低损耗TX-to-RX隔离
- Patent Title: Low-loss TX-to-RX isolation using electrical balance duplexer with noise cancellation
- Patent Title (中): 使用具有噪声消除功能的电气平衡双工器进行低损耗TX-to-RX隔离
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Application No.: US13719055Application Date: 2012-12-18
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Publication No.: US09000860B2Publication Date: 2015-04-07
- Inventor: Mohyee Mikhemar , Hooman Darabi
- Applicant: Broadcom Corporation
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McDermott Will & Emery LLP
- Main IPC: H03H7/46
- IPC: H03H7/46 ; H04B1/48

Abstract:
A circuit for a low-loss electrical balance duplexer (EBD) with noise cancellation may include an EBD circuit. The EBD circuit may be coupled to one or more output nodes of a transmit (TX) path, an antenna, and a one or more input nodes of a receive (RX) path. The EBD circuit may be configured to isolate the TX path from the RX path, and to provide low-loss signal paths between the one or more output nodes of the TX path and the antenna. A balancing network may be coupled to the EBD circuit and configured to provide an impedance that matches an impedance associated with the antenna. A noise cancellation circuit may be configured to sense a noise signal generated by the balancing network, and to use the sensed noise signal to improve a signal-to-noise ratio (SNR) of the RX path.
Public/Granted literature
- US20140169231A1 LOW-LOSS TX-TO-RX ISOLATION USING ELECTRICAL BALANCE DUPLEXER WITH NOISE CANCELLATION Public/Granted day:2014-06-19
Information query
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