....................................................................................................................xxx CHAPTER 1: INTRODUCTION ........................................................................................1 1.1 Motivation ...................................................................................................................1 1.2 Goal and Objectives ..........

This review reports the progress on the recent development of micromixers. The review first presents the different micromixer types and designs. Micromixers in this review are categorized as passive micromixers and active micromixers. Due to the simple fabrication technology and the easy implementation in a complex microfluidic system, passive micromixers will be the focus of this review. Next,...

A highly integrated Ka band front-end receiver is presented. The proposed front-end receiver is developed for a Ka band passive imaging system. The design adopts single-stage heterodyne architecture at 2 GHz intermediate frequency (IF). Further, a two-layer planar technology is adopted for compact realization. The top layer of the front-end comprises of two monolithic microwave integrated circu...

A wideband and low-power RF-to-baseband (BB) current-reuse receiver (CRR) front-end is proposed, its performance verified using two matching networks, one with an LC balun on-chip biasing inductor, CRR1, another a differential without CRR2, requiring less area. The transimpedance amplifier (TIA) low-noise transconductance (LNTA) share the bias current from single supply to reduce power consumpt...

In this article, we present a passive mixer-first receiver front end providing low-power integrated solution for high interference robustness in radios targeting Internet-of-Things (IoT) applications. The employs novel N-path filter/mixer, linear baseband amplifier, and step-up transformer to realize sub-6-dB NF >20-dBm OB-IIP3 concurrently. proposed filter/mixer exploits an implicit capacitive...

A passive CMOS downconversion mixer with LO buffer is presented in 0.25 mm SiGe BiCMOS using a 2.5 V supply. With a 60 MHz RF signal input, measurements show that the conversion loss is 2.9 dB, the input-referred 1 dB compression point is 20 dBm and the inputreferred noise is 2146.8 dBm/Hz. Compared to conventional NMOS mixers, the 1 dB compression point is improved by 9.7 dB. The tradeoffs and...

The creation of complex three-dimensional (3D) microfluidic systems has attracted significant attention from both scientific and applied research communities. However, it is still a formidable challenge to build 3D microfluidic structures with arbitrary configurations using conventional planar lithographic fabrication methods. Here, we demonstrate rapid fabrication of high-aspect-ratio microflu...