Piezoelectric Filter with Tunable Gain
- 详细技术说明
- None
- *Abstract
-
There is a long-standing problem of how to switch piezoelectric filters when used in switchable filter banks -- such as needed in RF channel-selection.
To address this problem, researchers at UC Berkeley have developed a method and structure for a piezoelectric resonator with tunable transfer function -- i.e. tunable gain. This Berkeley resonator's gain is tunable to many values -- including values that are low enough to consider the device to be "off" relative to the background signal. Accordingly, this approach enables on/off switching of piezoelectric resonators; and it thereby obviates the need for separate low loss switches, which otherwise would be needed in series with piezoelectric resonators to switch them on and off -- adding insertion loss and raising system gain. In addition, this ability to adjust filter gain makes it possible for the resonator to control low power gain in a receiver front-end.
- *IP Issue Date
- Sep 15, 2016
- *Principal Investigation
-
Name: Clark Tu-Cuong Nguyen
Department:
Name: Robert Schneider
Department:
- 申请号码
- 20160268999
- 其他
-
Additional Technologies by these Inventors
- Silicide-Induced Air Gaps
- MEMS Resonators with Increased Quality Factor
- Micromechanical Frequency Divider
- Zero-Quiescent Power Transceiver
- RF-Powered Micromechanical Clock Generator
Tech ID/UC Case
23595/2014-057-0
Related Cases
2014-057-0
- 国家/地区
- 美国

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