Digital - analog phase shifters using tunable dielectric capacitors

Digital - analog phase shifters using tunable dielectric capacitors

The advantages of the new digital-analog principle of operation for phase shifters using ferroelectric (FE) film capacitors are considered. The results of the theoretical investigation are confirmed by testing of a 1.8GHz device with a figure of merit F=120 deg/dB and a phase error < ±2° with ban...

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Bibliographische Detailangaben
Hauptverfasser: Kozyrev, A.B., Osadchy, V.N., Pavlov, A.S., Kosmin, D.M.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Capacitors
Dielectrics
Digital-analog conversion
Ferroelectric materials
Frequency
Insertion loss
Phase shifters
Resonance
Tunable circuits and devices
Voltage control
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Zusammenfassung:The advantages of the new digital-analog principle of operation for phase shifters using ferroelectric (FE) film capacitors are considered. The results of the theoretical investigation are confirmed by testing of a 1.8GHz device with a figure of merit F=120 deg/dB and a phase error < ±2° with bandwidth δf/f - 5%. Thermal stability of the phase parameters of device in temperature range (-70++50)°C due to variation of control voltages is experimentally demonstrated. The response time of the phase shifter to control pulse corresponds to units of nanoseconds.