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Piezoelectric Filter with Tunable Gain

Detailed Technology Description: None

Application No.: 20160268999

Others

Additional Technologies by these Inventors

Tech ID/UC Case

23595/2014-057-0

Related Cases

2014-057-0

*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 Investigator: Name: Clark Tu-Cuong Nguyen
Department:

Name: Robert Schneider
Department:

Country/Region: USA

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