IMPROVED QUADRATURE HYBRID AND IMPROVED VECTOR MODULATOR IN A CHIP SCALE PACKAGE USING SAME

摘要

In accordance with the present invention, a quadrature hybrid circuit is provided comprising a first spiral inductor and a second spiral inductor separated by an insulating layer to provide all necessary capacitances intrinsically. Further, a vector modulator circuit is provided that incorporates a plurality of quadrature hybrid circuits on a MMIC contained within a chip scale package.