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This paper presents the application of a reconfigurable MEMS-based tuning network for the improvement of the linearity and efficiency in RF power amplifiers (PAs) under load variations. Simulations show the performance improvement of the whole system in terms of linearity and efficiency with different loads.
RF and microwave tunable matching networks (TMNs) development is quickly growing as increasing their interest and demand for applications in wireless and mobile communication systems. Although this topic has been extensively reported in the literature in the last years, there are still some unclear issues regarding the performance measurements and the best… (More)
—This paper presents a new design of an automatic impedance synthesizer based on RF switches and its performance. A study about the implementation has been carried out and two prototypes of 50 Ω and 75 Ω of characteristic impedance have been successfully constructed. As switching elements in the tuning network we employ GaAs MMIC RF switches. An evaluation… (More)