Invention Grant
- Patent Title: Complex bandpass filter having a transfer function with two poles
- Patent Title (中): 具有两极传递函数的复带通滤波器
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Application No.: US14710092Application Date: 2015-05-12
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Publication No.: US09484871B1Publication Date: 2016-11-01
- Inventor: Shan He , Randy Tsang
- Applicant: Marvell International Ltd.
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H03K5/00
- IPC: H03K5/00 ; H03F3/45 ; H03H11/04
Abstract:
In some implementations, a filter circuit includes a first signal path that includes a first amplifier and a second signal path that includes a second amplifier. The first signal path is configured to receive a first component of a complex signal and provide a filtered version of the first component of the complex signal. The second signal path is configured to receive a second component of the complex signal and provide a filtered version of the second component of the complex signal. The first signal path before the first amplifier is coupled to the second signal path before the second amplifier. The first signal path after the first amplifier is coupled to the second signal path before the second amplifier. The second signal path after the second amplifier is coupled to the first signal path before the first amplifier.
Information query
