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A wideband digital RF receiver front-end employing a discrete-time (DT) filter is presented for application to m-WiMAX (WiBro). By employing a sampling mixer and a DT filter, the receiver operates in the charge domain. In addition to the flexibility of the DT filter, the new non-decimation finite impulse response (NDF) filter can be cascaded to a conventional finite impulse response (FIR) filter without...
A wideband LNA is the first amplifying stage in TV tuner system. It requires a low noise figure with a sufficient gain and a high linearity such as high IIP2 and IIP3 due to the many adjacent channels. This paper represents the wideband CMOS LNA using a dual feedback for the tuner application, which can suppress the second and the third order distortions with a low noise and a suitable gain. In the...
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