A monolithic substrate contains an integrated circuit comprising an amplifier having input and output, a mixer and a hybrid coupler for coupling the amplifier to the mixer. Metallic pads on the substrate are connected to each of two ports of the coupler and separate metallic pads are also connected to...http://www.google.se/patents/US7787838?utm_source=gb-gplus-sharePatent US7787838 - Integrated circuit, and an arrangement and method for interconnecting components of an integrated circuit
