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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...
We have realized a 200GHz 4×4 focal plane array (FPA) by using super-regenerative receiver (SRR) pixels made of 65nm CMOS for mm-wave imaging applications. With 16 pixel elements constructed on PCB, the FPA consumes 215mA under 1V power supply. Such realization is made possible by carefully analyzing the super-regenerative interference (SRI) commonly observed in close-spaced SRRs and applying a newly...
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