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Performance of all-optical flip-flop circuits based on a SOA-MZI is reviewed. Set-reset-type operation and T-type operation will be presented with feedback loop configuration for optical gate signal generation, and a counterfaced one for DPSK encoding, respectively.
A Dual Mode WiMAX/WLAN CMOS RF transceiver for the 2.5 and 3.5 GHz frequency bands is presented comprising one transmitter and two receivers. Current consumption of the direct conversion transceiver is 94/115 mA in TX and 83/105 mA in RX mode (2.5/3.5 GHz, 1 RX path active). Unwanted carrier and sideband leakage in transmit path can be calibrated using a dedicated downconversion mixer in a feedback...
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