Programmable RF Attenuator for On-Chip Loopback Test.

A programmable attenuator for RF loopback onchip test at 2.4 GHz is presented. The design requirements are derived from test specifications, which mainly aim at defects typical of a CMOS process. The circuit is implemented using AMS 0.35 μm technology to be embedded into RF transceiver front-end for Bluetooth or Wi-Fi standard. Simulation results obtained with Cadence Spectre RF are presented.

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