Radio frequency transformer

Details Radio frequency transformer Radio frequency transformer

1994-07-05

1995-12-19

Thomas, Laura

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

336232, H01F 2728

Patent

active

054772044

ABSTRACT:
A transformer (100)includes a substrate (101) on which two substantially adjacent runners (124 and 126) are disposed. The two runners (124 and 126) have substantially the same width and the same length and run from one segment of the substrate to another forming two spirals. The spirals run in opposite directions thereby capturing the flux and preventing it from escaping from the substrate hence adding to the efficiency of the electromagnetic coupling. The insertion loss of the transformer (100) is minimized by the high dielectric constant of the substrate, the close proximity of the two runners (124 and 126), and the opposite direction of the two loops.

REFERENCES:
patent: 3466580 (1969-09-01), Bull
patent: 4369557 (1983-01-01), Vandebult
patent: 4494100 (1985-01-01), Stengel
patent: 5017902 (1991-05-01), Yerman et al.
patent: 5068612 (1991-11-01), Auslander et al.
patent: 5276421 (1994-01-01), Boitard
patent: 5291173 (1991-03-01), Yerman et al.

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