As the demand for wireless communications increases, high speed and low cost electronics are desired. Traditionally, RF circuits are implemented using high performance technologies such as GaAs or SiGe in order to minimize noise and achieve high gain. However, those high performance processes are incompatible with mainstream digital circuitry, which are usually implemented in CMOS technologies. / In this thesis, an RF receiver frontend which consists of a differential low noise amplifier, active mixers, passive mixers, and a quadrature voltage-controlled oscillator, for 5 GHz applications are designed and manufactured in a digital CMOS process, in order to demonstrate the RF potential of CMOS processes. We explore the use of simple circuit topologies and common packaging to build CMOS receivers that can operate from IV supplies and lower, while providing reasonable image rejection without the use of any special image rejection filters. In addition, a high image rejection receiver is explored after designing it based on good and simple frequency planning. / Apart from inductors and capacitors, transformers are very useful passive components in RF applications. For example, transformers can act as on-chip single-ended to differential converters. In this thesis, a comprehensive study of transformer modeling is presented and discussed. A modeling program has been developed, and its accuracy verified through measurements of several transformer prototypes fabricated in a variety of state-of-the-art CMOS technologies. The program allows the generation of compact lumped transformer models to be used in circuit simulation.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.79245 |
| Date | January 2003 |
| Creators | Lee, Koon Hung, 1976- |
| Contributors | El-Gamal, Mourad N. (advisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Engineering (Department of Electrical and Computer Engineering.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001983515, proquestno: AAIMQ88371, Theses scanned by UMI/ProQuest. |
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