Piezo-controlled microwave frequency agile dielectric devices

Eugene Furman, Michael Lanagan, Irina Golubeva, Yuriy Poplavko

Research output: Contribution to conferencePaper

8 Scopus citations

Abstract

A novel approach utilizing piezoelectric actuators to control filters, resonators, and phase shifters with the minimum insertion loss is described. Tunable, low-loss microwave devices can be fabricated using composite structures in which effective dielectric constant, εef, is controlled by piezoelectrically induced changes in the energy distribution within the devices. With this approach high degree of tunability is possible while utilizing high Q dielectrics. These devices usually consist of two dielectric parts with an air gap between them. This gap has to be arranged to provide the largest perturbation in the electromagnetic field By means of a fast piezoelectric mini-actuator, the size of the air gap is changed and as a result, the εef can be tuned. This tuning is used for a device control. Highly tunable (more than 20%) dielectric and metal ring resonators, as well as wide-band, low-loss phase shifters are realized experimentally.

Original languageEnglish (US)
Pages266-271
Number of pages6
StatePublished - Dec 15 2005
Event2004 IEEE International Frequency Control Symposium and Exposition. A Conference of the IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society (UFFC-S) - Montreal, Canada
Duration: Aug 23 2004Aug 27 2004

Other

Other2004 IEEE International Frequency Control Symposium and Exposition. A Conference of the IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society (UFFC-S)
CountryCanada
CityMontreal
Period8/23/048/27/04

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Furman, E., Lanagan, M., Golubeva, I., & Poplavko, Y. (2005). Piezo-controlled microwave frequency agile dielectric devices. 266-271. Paper presented at 2004 IEEE International Frequency Control Symposium and Exposition. A Conference of the IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society (UFFC-S), Montreal, Canada.