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A wideband low-noise amplifier (LNA) based on the current-reused cascade configuration is proposed. The wideband input-impedance matching was achieved by taking advantage of the resistive shunt-shunt feedback in conjunction with a parallel LC load to make the input network equivalent to two parallel RLC-branches, i.e., a second-order wideband bandpass(More)
A low-power, high-gain (HG), and low-noise (LN) CMOS distributed amplifier (DA) using cascaded gain cell, formed by an inductively parallel-peaking cascode-stage with a low-<i>Q</i> RLC load and an inductively series-peaking common-source stage, is proposed. Flat and high <i>S</i><sub>21</sub> and flat and low noise figure (NF) are achieved simultaneously(More)
A quick wireless label-free detection of disease-related C-reactive proteins (CRPs) using a 200-microm-long microelectromechanical systems (MEMS) microcantilever housed in a 7 x 7 mm(2) reaction chamber with a safe reusable feature is reported. The assay time ranges from about 30 min to 3 h, depending on accuracy. The deflection of the microcantilever due(More)
This paper demonstrates our proposed quantization noise pushing technique, which moves the quantization noise to higher frequencies and utilizes the low-pass characteristic of the phased-lock loop (PLL) to further suppress the quantization noise. In addition, it can separate the operating frequency of the DeltaSigma modulator and the comparison frequency of(More)
A new input matching method making use of shunt–shunt feedback capacitance is introduced. Based on the new input matching method, reconfigurable SiGe low-noise amplifiers (LNAs) by varying shunt–shunt feedback capacitance are proposed. Two approaches are used to vary the shunt–shunt feedback capacitance. One approach is to switch between two different bias(More)
A millimeter-wave multiband phase-locked loop (PLL) is presented for the first time, which covers 40-, 60-, and 80-GHz bands. Three voltage-controlled oscillators corresponding to different frequencies are input to a multiband injection-locked frequency divider and switched on one at a time by a multiplexer as a band selector. The feedback loop embraces the(More)
A novel theory based on dual-feedback circuit methodology is proposed to explain the kink phenomenon of scattering parameter S/sub 22/ in deep submicrometer MOSFETs. Our results show that the output impedance of MOSFETs intrinsically shows a series RC circuit (for low substrate resistance) or a "shifted" series RC circuit (for very high substrate(More)