Записи с меткой ‘moveable’

DEVELOPMENT OF PIEZO-OPERATED DIELECTRIC PHASE SHIFTER

February 26, 2013

Y. Poplavko, I. Golubeva, and Y. Prokopenko National Technical University of Ukraine 37, Peremogi Ave., Kiev, 03056, Ukraine e-mail: poplavko@ieee.org

Abstract – Possible alternative of low loss and highly tunable MEMS phase shifter is discussed. Dielectric or metallic parts of device should have the piezo-dirigible air gap between them. Important is to provide a strong perturbation in electromagnetic field in the region influenced by the mechanical control. Energy distribution within the device is controlled by piezoelectric actuator, and can be described as a change in effective dielectric permittivity (se^). Some of highly tunable piezoelectric RF MEMS devices are realized experimentally.

» Читать запись: DEVELOPMENT OF PIEZO-OPERATED DIELECTRIC PHASE SHIFTER

микросхемы мощности Устройство импульсов питания пример приемника провода витков генератора выходе напряжение напряжения нагрузки радоэлектроника работы сигнал сигнала сигналов управления сопротивление усилитель усилителя усиления устройства схема теория транзистора транзисторов частоты