Transceiver Design
Over the last 15 years, integrated circuit wireless communications transceivers have been the focus of intense research. The wireless revolution that has taken place before our eyes and the advent of inexpensive silicon (CMOS and SiGe) to realize RF circuitry have fueled a zealous quest for lower power consumption and higher levels of integration in wireless communications ICs. Various wireless technologies have literally changed the way we live. Cell phones, Wireless LAN, GPS, and Bluetooth are examples of technologies that started out being implemented in somewhat esoteric, very expensive gadgets, but have now reached must-have status with consumers worldwide. Most of us might wonder how we ever did without them. Meanwhile, the realization a few years ago that RF circuits such as LNAs, mixers, and VCOs could actually be designed for manufacturability in a relatively inexpensive CMOS or SiGe process - as opposed to implementations using more esoteric, expensive materials like GaAs or ...
Circuit Sage Tools
Mathcad routines for RF Circuit Design:
S-parameters, parameter conversion, stability, noise, power gain

Mathcad routines for RF Circuit Design (.pdf):
.pdf of RF circuit design Mathcad routines

Mathcad routines for cascaded system design:
Noise and linearity calculations for a receiver architecture

Mathcad routines for cascaded system design (.pdf):
.pdf of cascaded system Mathcad routines

Online Tools
MATHCAD/MATLAB
Professor Reinhold Ludwig's MATLAB files:
From his book RF Circuit Design. Great stuff! Click on M-files on the left frame.

SOFTWARE
RFSim99:
Highly regarded

Cascade (FREE):
Calculate NF, IIP3, Gain of a receiver with cascaded components

DASE:
$40 block-level simulation tool

Agilent's RF Design Environment:
RF IC design tool set that plugs into the Cadence environment (ADE)

Rfsyscalc Excel tool (FREE):
Excel spreadsheet for analysis of a cascaded system

APLAC:
Tool plugs into Cadence environment

Simulink:
Communications system simulations using Simulink

RF system performance spreadsheet:
Calculates basic RF system performance

VisSim:
Block diagram simulation plug-in for both Mathcad and MATLAB

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Online Articles
Comprehensive GSM receiver specification paper from UC-Berkeley:
Also covers DECT and GPS receivers

Accompanying receiver specification spreadsheet:
Spreadsheet associated with Berkeley's GSM receiver specification paper

RF transceivers papers at UC-Berkeley:
Multiple papers and slides on GSM and DECT transceivers

Transceiver architectures for wireless ICs:
Pros and cons of many receiver architectures. Click on the pdf file so you can see the pictures

Milimiter-wave receiver in 90-nm CMOS by Professor Behzad Razavi of UCLA:
Great paper discusses issues in realizing the various transceiver building blocks in the 60-GHz band

Many papers on transceivers and building blocks, from UCLA:
Papers by Professor Behzad Razavi and his students at UCLA

Techniques to efficiently optimize a complete wireless receiver:
Deals with the long computation times involved in verifying a receiver's performance

Class notes from U. of Cincinnati:
Class notes from Professor James Caffery's Wireless Communications course

Derek Shaeffer's CMOS GPS receiver presentation:
115-mW CMOS GPS receiver in 0.5 um

Derek Shaeffer's CMOS Receivers PhD thesis:
Very comprehensive document covers various receiver architectures plus demonstration of a CMOS GPS receiver

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Henry Nguyen

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