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		ISSUE DATE: OCTOBER 2002			OPTIONS
		Integrated Circuits			• Get a FREE Subscription • Renew Subscription • Reprints/Licensing • Submit Article Ideas

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October 2002 - In This Issue

[Cover Story]
Network Analyzers Simplify Mixer Test
Mixers are one of the fundamental components of every superheterodyne receiver (Rx), but evaluating them has never been easy, even with powerful vector-network analyzers (VNAs). The techniques employed to characterize the phase and group-delay...  — David Ballo

[News]
2002 IEDM Explores Emerging Semiconductors
Semiconductor technologies seem to race forward almost without impediment, especially in computer-related applications such as memory chips, logic, and processors. But those semiconductor processes geared for RF and microwave applications continue to...  — Jack Browne

[Design Features]
Single Chip Realizes Direct-Conversion Rx
Direct conversion of RF signals to baseband has long been a goal of communications systems designers. The approach can eliminate expensive and bulky hardware, but at the cost of some trade-offs in performance. What follows is an examination of the...  — Gary Hendrickson , et al.

[Design Features]
Low-Power Transceiver Targets Wireless Headsets
Conservation of power is a critical design goal in many wireless products, including wireless headsets for digital radio communications. One "power-wise" approach to wireless audio transmissions involves sampling, digitizing, and compressing audio...  — Peder Martin Evjen

[Design Features]
Design/Verification Tools Tame Complex System Designs
Communications-system design is complex, requiring practical and powerful design tools. Complex interactions between RF components, baseband signal processors, and increasingly complex modulation schemes can challenge even the most experienced...  — Chris Mueth

[Product Technology]
PC Card Contains Bluetooth Protocol Analyzer
Bluetooth is steadily gaining ground in key markets, such as personal computers (PCs) and computer peripherals. For developers hoping to compete in these and other personal wireless-connectivity applications, the Merlin Mobile Bluetooth protocol...  — Jack Browne

[Product Technology]
GPS Receiver IC Offers Embedded Solution
Global Positioning System (GPS) receivers (Rxs) can now be found in many rental cars as well as in high-performance consumer vehicles. And with the availability, low cost, and small size of the PointCharger model SE4100 GPS Rx integrated circuit (IC)...  — Jack Browne

[Product Technology]
Push-On Connectors Make Links To 65 GHz
Frequency coverage to 65 GHz was once considered the exclusive domain of waveguide. But the instantaneous bandwidth of a waveguide is relatively narrow (part of an octave) is limited by its physical dimensions. With refinements in coaxial connectors,...  — Jack Browne

[Product Technology]
Digital RF Signal Generator Breaks Down Complex Tests
Signal generators must minimize errors while guaranteeing precision and repeatability, even on the most sensitive analog or digital receivers (Rxs). The 3410 series from IFR, Inc. (Wichita, KS) plans to meet this challenge by combining an RF-level...  — Nancy Konish

[Editorial]
Studying Wireless Reference Designs
Reference designs represent the ultimate "how-to" guide for engineers in need of fresh ideas. Although generic by nature, a reference design is usually a complete implementation of a wireless product, providing an engineer with a "legal" opportunity...  — Jack Browne

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