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Due to the proliferation of nanometer CMOS mixed-signal/RF circuits and a push towards high operating speeds (5–100 Ghz+), there has been renewed interest in the design of high-speed circuits and systems that can self-calibrate and self-heal post-manufacture and in the field. In the past, designers have invented self-healing mechanisms that are tailored towards specific (critical) mixed-signal/RF...
In this paper, a fast RF BIST-driven post-manufacture tuning methodology for yield improvement of RF transceiver systems is presented. The core algorithms optimize multiple transceiver performance metrics concurrently using a hardware-iterated gradient search algorithm that uses diagnostic BIST data to guide the tuning of circuit and software level parameters. Intelligent ??initial guess?? values...
In this paper, a novel adaptive calibration technique for advanced RF front-ends is proposed in which sensors are implanted in the transmitter and the observed device test response to a special calibration test is compared against the known golden response to the same. Tuning 'knobs' which are built into the circuit are then used to minimize the error between the observed response and the golden response...
In this paper, a process tunable, continuously adaptive wireless front end architecture and related adaptation algorithms are presented that allow an RF transceiver to function at minimum power irrespective of channel conditions and process variability induced performance loss in the RF front end and baseband interface. Current wireless transceiver front ends are designed for worst case channel conditions...
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