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Voltage tunable microwave ferrite resonator

Author(s)
Oates, Daniel E.; Dionne, Gerald F.; Slattery, Richard L.
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.

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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
A novel method of implementing a tunable resonator using an applied voltage is presented. Stress is used to tune a microstrip resonator fabricated on a polycrystalline ferrite substrate. The stress was applied either mechanically with screws or electronically using piezoelectric actuators. We have demonstrated tunability of 300 MHz using screws and 50 MHz using a piezoelectric actuator at a center frequency of 2.3 GHz. Explanation of the tuning method is given and means to extend the tuning range is discussed. This method opens the possibility of compact low-power tunable filters with wide tuning range at microwave frequencies.
Date issued
2009-07
URI
http://hdl.handle.net/1721.1/67842
Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Journal
IEEE MTT-S International Microwave Symposium Digest, 2009.
Publisher
Institute of Electrical and Electronics Engineers
Citation
Oates, D. E., G. F. Dionne, and R. L. Slattery. “Voltage tunable microwave ferrite resonator.” IEEE, 2009. 641-644. Web. 21 Dec. 2011. © 2009 Institute of Electrical and Electronics Engineers
Version: Final published version
ISBN
978-1-4244-2803-8
ISSN
0149-645X

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