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A low-voltage and high-linearity downconverter RFIC design using TSMC 0.18 μm CMOS foundry for WiMAX applications is presented in this paper. The LC resonator is used to block DC and RF signals for low supply voltage and the multiple-gated CMOS is adopted to eliminate third-order nonlinear term for high linearity. The crucial simulated results of WiMAX downconverter include that a conversion gain...
An electrical model of the 104 MHz radio frequency quadrupole (RFQ) accelerator at Peking University is introduced for RF design, based on which every crucial geometrical parameter is swept and selected carefully to improve the RF properties of the RFQ such as the intrinsic quality factor and shunt impedance for reducing its power consumption. Moreover, flatness tuning of the inter-electrodes voltage...
A very compact and flexible single stage RF front-end for low power receiver is presented. The key feature of the circuit proposed is the large separation of the different functions implemented (RF amplification, mixing, LO and quadrature generation) even while sharing the same bias current and the same devices. Two different prototypes are reported. The first one is a RF front-end for GPS applications...
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