Patent ID: 7391293

Claim:
A transformer comprising: a first liquid crystal polymer (LCP) sheet having opposing sides and a metallic cladding on at least one of the sides; first half primary and secondary windings as metallic circuits and formed as a plurality of linear lines and etched on the metallic cladding such that secondary windings are positioned in spaced, substantially parallel relation to the primary windings; a second LCP sheet having opposing sides and a metallic cladding on at least one of the sides and applied over the first LCP sheet; second half primary and secondary windings as metallic circuits and formed as a plurality of linear lines parallel to each other etched on the metallic cladding of the second LCP sheet; and conductive vias formed within first and second LCP sheets and interconnecting respective first and second half primary windings to each other and first and second half secondary windings to each other and forming a substantially rectangular configured transformer structure with primary and secondary windings on a common rectangular core having an open area.