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The IIP2 requirement in fully integrated direct-conversion receivers using FDD duplexing is prohibitively high and demands the use of an external filter in order to attenuate the leakage from the transmitter. This paper presents a digital calibration technique for passive CMOS down-converters that allows a direct conversion receiver achieve the requirements without external filtering. A Least-Mean-Square...
This paper presents a system level design of radio frequency receiver supporting WiMAX mobile standard. Based on direct conversion receiver, the distribution of the total radio system specifications to the individual receiver components is discussed. System level design techniques and theoretical calculation are developed. Simulation results and system simulation level are introduced for noise figure...
This paper presents a tool capable of compiling automatically the schematic circuit design of a direct conversion receiver based on system specifications including frequency of operation, gain, noise figure, and IIP3 linearity. The rx front-end of a direct conversion receiver is built using inductive source degeneration (LSD) LNA and single-balanced source-degenerated Gilbert Cell mixers with charge...
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