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A 24 GHz FMCW generator based on ADPLL was implemented in this work. Two-point modulation technology was used to achieve high sweep linearity. Meanwhile, a floating shield distributed metal capacitor bank was proposed to provide high frequency-sweep linearity DCO. By using these technologies, the FMCW generator’s frequency error can be controlled as small as 60 kHzrms when 180 MHz frequency was swept...
A low-power, high linearity and wideband passive mixer for SDR is presented The passive mixer employs the improved current-reuse Gm stage, combines source degeneration with MGTR to extend the linearity region while enhance the IIP3 performance Measured results show the design achieves a good linearity even though the power of input RF signal is up to −14dBm (Vpp is about 160mV, consider the balun's...
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