Design and simulation of 2.5 GHz system-in-a-package module

This paper presents a new 2.5 GHz System in a package module. A new approach for S-parameters and RF power measurements of 2-port differential amplifiers is implemented. The new method is based on 2-port measurements of the output differential lines, while having the input ports fed with true differential base-band signals. The advantages of using this technique are several including eliminating the need to use 4-port vector network analyzers and baluns that are known to degrade measurements accuracy. The new design is validated by comparing simulation with measured data of the complete wireless system in a package (SiP) module operating at 2.5 GHz, which agreed quite well.