Dielectric Phase Shifter Based on the Piezo-Tunable Impedance-Step Filter

Dielectric Phase Shifter Based on the Piezo-Tunable Impedance-Step Filter

New devices based on the impedance-step filter are developed and studied. One of them is low loss band-puss tunable filter controlled by means of substrate effective dielectric constant change. Second setup is also tunable filter but utilized as a phase shifter. It represents the combination in one...

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Bibliographische Detailangaben
Hauptverfasser: Poplavko, Y., Pashkov, V., Molchanov, V., Shmigin, D., Yeremenko, A.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Actuators
Dielectric constant
Dielectric losses
Dielectric substrates
Filters
Frequency
Impedance
Low voltage
Phase shifters
Voltage control
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Beschreibung
Zusammenfassung:New devices based on the impedance-step filter are developed and studied. One of them is low loss band-puss tunable filter controlled by means of substrate effective dielectric constant change. Second setup is also tunable filter but utilized as a phase shifter. It represents the combination in one device: (1) impedance-step filter controlled from the direction of end- walls, and (2) low voltage multi-layer actuator. Controlled phase shift of ~100deg is obtained under the voltage of ~30 V in the frequency range of 0.7 - 0.9 GHz.
DOI:10.1109/EUMC.2007.4405183