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公开(公告)号：US20140009862A1
公开(公告)日：2014-01-09
申请号：US13751977
申请日：2013-01-28
Applicant: Qualcomm Incorporated
Inventor： JE-HSIUNG LAN , Evgeni P. Gousev , Wenyue Zhang , Manish Kothari , Sang-June Park
IPC: H01G7/00
CPC classification number: H01G7/00 , H01G5/16 , H01P1/127 , Y10T29/435
Abstract: Tunable MEMS resonators having adjustable resonance frequency and capable of handling large signals are described. In one exemplary design, a tunable MEMS resonator includes (i) a first part having a cavity and a post and (ii) a second part mated to the first part and including a movable layer located under the post. Each part may be covered with a metal layer on the surface facing the other part. The movable plate may be mechanically moved by a DC voltage to vary the resonance frequency of the MEMS resonator. The cavity may have a rectangular or circular shape and may be empty or filled with a dielectric material. The post may be positioned in the middle of the cavity. The movable plate may be attached to the second part (i) via an anchor and operated as a cantilever or (ii) via two anchors and operated as a bridge.
Abstract translation: 描述了具有可调谐共振频率并且能够处理大信号的可调谐MEMS谐振器。 在一个示例性设计中，可调谐MEMS谐振器包括（i）具有空腔和柱的第一部分和（ii）与第一部分配合并且包括位于柱下方的可移动层的第二部分。 每个部分可以在面向另一部分的表面上被金属层覆盖。 可移动板可通过DC电压机械地移动以改变MEMS谐振器的谐振频率。 空腔可以具有矩形或圆形形状，并且可以是空的或者用电介质材料填充。 柱可以位于腔的中间。 可移动板可以经由锚固件附接到第二部件（i）并作为悬臂操作，或者（ii）经由两个锚定件并作为桥梁操作。
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公开(公告)号：US20200383045A1
公开(公告)日：2020-12-03
申请号：US16427130
申请日：2019-05-30
Applicant: QUALCOMM Incorporated
Inventor： Deepak Jindal Kumar , Manish Kothari , Sudhanshu Singh , Santhi Swaroop Golti , Sunil Dutt Undekari
Abstract: Methods, systems, and devices for wireless communications are described. Wireless stations (STAs) may be within the coverage areas of several of access points (APs). In such cases, STAs may detect some set of candidate APs for possible connection, and the STAs may perform some selection procedure to select an AP for connection. For example, a STA may score or rank available APs (e.g., APs within the set of candidate APs), and the STA may sort the candidate APs into different bins (e.g., categories) based on their respective scores (e.g., based on each AP's candidate score). Each bin may thus include one or more APs associated with some scoring range. A STA may then randomly (e.g., or pseudo-randomly) select an AP from the bin associated with a highest range of candidate scores, and the STA may connect to the selected AP.
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公开(公告)号：US08922974B2
公开(公告)日：2014-12-30
申请号：US13751977
申请日：2013-01-28
Applicant: QUALCOMM Incorporated
Inventor： Je-Hsiung Lan , Evgeni P Gousev , Wenyue Zhang , Manish Kothari , Sang-June Park
CPC classification number: H01G7/00 , H01G5/16 , H01P1/127 , Y10T29/435
Abstract: Tunable MEMS resonators having adjustable resonance frequency and capable of handling large signals are described. In one exemplary design, a tunable MEMS resonator includes (i) a first part having a cavity and a post and (ii) a second part mated to the first part and including a movable layer located under the post. Each part may be covered with a metal layer on the surface facing the other part. The movable plate may be mechanically moved by a DC voltage to vary the resonance frequency of the MEMS resonator. The cavity may have a rectangular or circular shape and may be empty or filled with a dielectric material. The post may be positioned in the middle of the cavity. The movable plate may be attached to the second part (i) via an anchor and operated as a cantilever or (ii) via two anchors and operated as a bridge.
Abstract translation: 描述了具有可调谐共振频率并且能够处理大信号的可调谐MEMS谐振器。 在一个示例性设计中，可调谐MEMS谐振器包括（i）具有空腔和柱的第一部分和（ii）与第一部分配合并且包括位于柱下方的可移动层的第二部分。 每个部分可以在面向另一部分的表面上被金属层覆盖。 可移动板可通过DC电压机械地移动以改变MEMS谐振器的谐振频率。 空腔可以具有矩形或圆形形状，并且可以是空的或者用电介质材料填充。 柱可以位于腔的中间。 可移动板可以经由锚固件附接到第二部件（i）并作为悬臂操作，或者（ii）经由两个锚定件并作为桥梁操作。
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