Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Induction-type discharge device load
Patent
1991-09-10
1992-09-01
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
Induction-type discharge device load
315344, 315 39, H05B 4116
Patent
active
051442060
ABSTRACT:
The present invention describes an electrodeless HID lamp fixture which utilizes conventional microwave printed circuit material to provide both coupling and impedance matching functions. The fixture provides a steady state input impedance of a predetermined (e.g. 50 .OMEGA. or 75 .OMEGA.) value allowing direct connection to a RF power supply. Microwave power is applied at the input of the impedance matching network/balun which transforms the steady-state impedance of the lamp to the predetermined value. The network include a quarter wave transformer having a shunt capacitor coupled to balun-applicator which supplies microwave power to the lamp. In a preferred embodiment, the quarter wave transformer, shunt capacitor and balun are all manufactured on a microstrip.
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patent: 3993927 (1976-11-01), Haugsjaa
patent: 4001632 (1977-01-01), Haugsjaa et al.
patent: 4002944 (1977-01-01), McNeill et al.
patent: 4266162 (1981-05-01), McNeill
patent: 4629940 (1986-12-01), Gagne
Bochinski Jason
Butler Scott J.
Lapatovich Walter P.
GTE Products Corporation
LaRoche Eugene R.
Lohmann, III Victor F.
Ruoff Carl F.
Zarabian A.
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