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Design A Pin Diode Switch For High-Linearity Applications, Chin-Leong Lim
Design A Pin Diode Switch For High-Linearity Applications, Chin-Leong Lim
Chin-Leong Lim
This paper describes the semiconductor technology, packaging and characterization of a new PIN diode for switching WCDMA signal up to 10W. PIN semiconductor technology was picked as the basis for this switch because of the various performance and reliability advantages that can be had. A model for the PIN diode is generated based on the measured RF performance. How the various model parameters affect the RF performance is also discussed. This is followed by an application description of a 2.0 GHz switch based on the said model and a discussion of some circuit changes to further improve the performance. The …