Small-Signal Impedance of a Radio Frequency Plasma Capacitor

A capacitor for radio frequency control is proposed that uses a gas discharge plasma as a variable dielectric. Experimental small-signal impedance measurements on a prototype device at 500MHz-2.4GHz show a capacitance ratio of 2-6:1 with a quality factor of 60 at 600MHz. Results compare well with si...

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Veröffentlicht in:	IEEE microwave and wireless components letters 2007-11, Vol.17 (11), p.763-765
Hauptverfasser:	Linardakis, P., Borg, G.G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Capacitors Descriptions Devices dielectric materials Dielectric, amorphous and glass solid devices Dielectrics Discharges Electronics Exact sciences and technology Gas discharges Impedance measurement Microwaves Plasma devices Plasma measurements Plasma properties Prototypes Quality factor Radio control Radio frequencies Radio frequency Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
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Beschreibung
Zusammenfassung:	A capacitor for radio frequency control is proposed that uses a gas discharge plasma as a variable dielectric. Experimental small-signal impedance measurements on a prototype device at 500MHz-2.4GHz show a capacitance ratio of 2-6:1 with a quality factor of 60 at 600MHz. Results compare well with simple theoretical descriptions of the dielectric properties of plasmas.
ISSN:	1531-1309 2771-957X 1558-1764 2771-9588
DOI:	10.1109/LMWC.2007.908042