Invention Grant
US08525620B2 BAW resonator filter bandwidth and out-of-band frequency rejection
有权
BAW谐振器滤波器带宽和带外频率抑制
- Patent Title: BAW resonator filter bandwidth and out-of-band frequency rejection
- Patent Title (中): BAW谐振器滤波器带宽和带外频率抑制
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Application No.: US12627927Application Date: 2009-11-30
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Publication No.: US08525620B2Publication Date: 2013-09-03
- Inventor: Carlton Stuebing , Guillaume Bouche
- Applicant: Carlton Stuebing , Guillaume Bouche
- Applicant Address: US OR Hillsboro
- Assignee: Triquint Semiconductor, Inc.
- Current Assignee: Triquint Semiconductor, Inc.
- Current Assignee Address: US OR Hillsboro
- Agency: North Weber & Baugh LLP
- Main IPC: H03H9/00
- IPC: H03H9/00

Abstract:
Embodiments of the present invention provide systems, devices and methods for improving both the bandwidth of a BAW resonator bandpass filter and the suppression of out-of-band frequencies above the passband. In various embodiments of the invention, blocker inductors are located in series between the filter input and the filter output to realize both bandwidth enhancement and improved out-of-band frequency rejection. For example, a first blocker inductor may be located at the input and a second blocker inductor may be located at the output of a BAW resonator bandpass filter.
Public/Granted literature
- US20100073106A1 BAW Resonator Filter Bandwidth and Out-of-Band Frequency Rejection Public/Granted day:2010-03-25
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