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Piezoelectric Filter with Tunable Gain

詳細技術說明

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:

申請號碼

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

國家/地區

美國