Integral impedance matching structure for electrodeless discharg

Details Integral impedance matching structure for electrodeless discharg Integral impedance matching structure for electrodeless discharg

1992-12-18

1994-10-25

Mis, David

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

315 39, 315344, H05B 4124

Patent

active

053592646

ABSTRACT:
An assembly includes an electrodeless discharge lamp disposed between a pair of field applicators, and an integral impedance matching structure for matching the impedance of the lamp and field applicators to the impedance of a power source. The structure includes a Tee junction, a transmission line including a first branch connecting a first output of the Tee junction to one of the field applicators. A second branch of the transmission line connects a second output of the Tee junction to the other field applicator. The difference between electrical lengths of the first and second branches are substantially shorter than a half-wavelength. The assembly is less complex and more compact than prior art which utilizes odd mode excitation via a half-wavelength balun transformer.

REFERENCES:
patent: 5070277 (1991-12-01), Lapatovich
patent: 5113121 (1992-05-01), Lapatovich et al.
patent: 5144206 (1992-09-01), Butler et al.
"Feedback in Two-Port Networks", Dr. Archie K. McCurdy, pp. 1-22, date: 1977.

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