High-power UltraCMOS switches are the next generation solution for wireless handset power amplifiers and antenna switch modules. Most multi-throw switches combine high-power transmit and high-isolation receive functions on one die. Peregrine switches also feature integrated decoders and logic drivers, extremely low power and low voltage.
Applying any switch required understanding its impedance and transmission characteristics. S-Parameters are common for defining two-port RF networks. Without a multi-port vector network analyzer (VNA), multi-port switches present great calibration, measurement, and design challenges. This application note describes how to calibrate and measure S-parameters for multi-port switches with a common two-port VNA.
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