Wideband planar transformer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7821374
APP PUB NO 20090002111A1
SERIAL NO

12006822

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of arranging and fabricating parallel primary and secondary coils of a wideband planar transformer is provided. The spacing and width of the coils are disposed to extend the bandwidth from DC to GHz and allow for high frequency coupling when the core permeability dramatically drops and achieves low reflected energy and low loss over a wide bandwidth. A bottom mold having a pattern of hole-pairs with conductive elements inserted vertically couples to a top mold such that a middle portion of the conductive elements spans between the top and bottom molds. Dielectric material envelopes the middle portion and a displacement feature of the mold creates a vacancy. A ferrite element is deposited to the vacancy. A second top mold spans the bottom mold and dielectric material is deposited to create a molded assembly. A deposited patterned conductive coating connects the element ends to define the transformer coils.

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Patent Owner(s)

Patent OwnerAddress
PLANARMAG INC2945 RAMCO STREET SUITE 205 WEST SACRAMENTO CA 95691

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harrison, William Lee El Dorado Hills, US 12 226
McConnell, Stephen M Folsom, US 9 206
Pham, Anh-Vu West Sacramento, US 2 101

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