BERKELEY SENSOR & ACTUATOR CENTER
UC BERKELEY UC DAVIS
User: Guest |  Site Map |  My BSAC Profile
HOME  PROJECTS  THRUSTS  PUBLICATIONS  ABOUT BSAC  DIRECTORY  ALUMNI  FOR BSAC RESEARCHERS  EVENTS CALENDAR  SECURE LOGIN
Table of all Projects
     
 

BPN682: Strong I/O Coupled High-Q Micromechanical Filters

Project ID BPN682
Website
Start Date Tue 2012-Aug-14 08:49:07
Last Updated Mon 2015-Feb-02 15:08:43
Abstract This project improves the Q-factors of piezoelectric aluminum nitride (AlN) resonators by detaching their electrodes and suspending them at close distance. These devices are then used to make high-Q filters. "Capacitive-piezo" transduction, as it is called, allows for simultaneous low motional impedance (10-1000 Ohm) and high-Q (Q>8,800) performance for AlN resonators at VHF and UHF frequencies. The main advantage of these devices over capacitive resonators is their much stronger electromechanical coupling, e.g., Cx/C0>1.0%, enabling kt^2*Q figures of merit exceeding those of other technology classes in the range of 100MHz-1GHz. This project aims to use these high-performance resonators to demonstrate self-switchable, low impedance channel-selecting filters. Such filters can operate with insertion losses of less than 2-dB, stop- band rejection exceeding 50-dB, and power handling capability for high out-of-band and in-band power.
Status Continuing
Funding Source BSAC Member Fees
IAB Research Area Wireless, RF & Smart Dust
Researcher(s) Robert A. Schneider
Advisor(s) Clark T.-C. Nguyen
Detailed Information
Secure Access

Private Abstract
Research Report
Poster
Summary Slide PDF | VIDEO
Active Feedback (or Request for Response)

 

  • Copyright Notification: All papers downloaded from this site are © University of California or the publisher, all rights reserved. Contact the BSAC Webmaster for permission related to copyrighted materials.
  • Links on these pages to commercial sites do not represent endorsements by UC or its affiliates.
  • Privacy Policy
  • Contact Us

   webmaster@bsac.eecs.berkeley.edu
  User logged in as: Guest
  User Idle since: March 29, 2015, 3:42 am