Multi-state attenuator
Abstract:
Multi-state radio frequency (RF) attenuator configurations that include bridged-T type, pi-type, and T-type structures each having a programmable throughput section and a coupled programmable shunt section. The throughput sections and shunt sections may be configured in various combinations of parallel and serial fixed or selectable resistance elements such that multiple resistance states and impedance matching states can be programmatically selected, and may include stacked switch elements to withstand applied voltages to a specified design level.
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