Invention Grant
- Patent Title: Mitigating desense in collocated speaker and antenna system
- Patent Title (中): 配置扬声器和天线系统的减轻雷击
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Application No.: US14304733Application Date: 2014-06-13
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Publication No.: US09369165B1Publication Date: 2016-06-14
- Inventor: Amit Shailesh Gaikwad , Tzung-I Lee
- Applicant: Amazon Technologies, Inc.
- Applicant Address: US NV Reno
- Assignee: Amazon Technologies, Inc.
- Current Assignee: Amazon Technologies, Inc.
- Current Assignee Address: US NV Reno
- Agency: Polsinelli LLP
- Main IPC: H04B1/18
- IPC: H04B1/18 ; H01Q1/44 ; H01Q1/24

Abstract:
Embodiments of the subject technology provides a novel approach to address desense and provide electrostatic discharge (ESD) protection among components for a collocated antenna and speaker configuration in a mobile computing device. The available metal around the periphery of speaker components are used as part of implementing an antenna(s) and also for tuning the antenna, which results in an efficient antenna design that can be implemented within an available (relatively small) area of a PCB and also without adding components, which could further increase the overall cost of the mobile computing device. An inductor is used to isolate the antenna away from a ground to mitigate desense for the antenna. The inductor is connected to a diode and capacitor in series. The diode provides ESD protection for the speaker. The capacitor is connected to the diode in parallel to shunt nonlinearities generated by the diode to ground.
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