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In this article, we firstly study the theory and extraction method of X-parameter, and then with TSMC 65-nm CMOS-LP technology, we design a second-order subharmonic quadrature passive mixer with LO frequency at 12.125-GHz and a fundamental quadrature passive mixer with a LO frequency at 24.25-GHz, both of which operate at RF frequency of 24.25–26.65-GHz. The design methodologies based on S-parameter...
An integrated 6.2-9.5GHz CMOS UWB receiver for WiMedia MB-OFDM is proposed. The fully differential receiver consists of a wideband LNA and a down conversion mixer with high and low gain mode. A low-pass filter and a programmable gain amplifier are also included. The chip was fabricated in TSMC 0.13-μm RF CMOS process. Measurement results show that the receiver achieves voltage gain from 21dB to 63dB...
An integrated ultra-wideband CMOS RF front-end for UWB 6-9 GHz application is presented in this paper. A single-in-differential-out gain controllable low noise amplifier and a current-reuse bleeding IQ merged quadrature mixer are integrated as the RF front-end. This ESD protected module is implemented in TSMC 0.13μm RF CMOS process and the post-layout simulation results shows that it achieves a high...
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