Speeding up manufacturing test of WiMAX equipment
Apr 1, 2007
By Christian Olgaard This article attempts to show that by optimizing the capability of the device under test's driver to generate special non-linked mode signals, in combination with advanced trigger and analysis methods, it can lead to test times that are many times faster than what is currently possible....
RF wireless burst analysis using oscilloscopes
Feb 1, 2007
By Mike Hertz With real-time oscilloscope bandwidths now topping 18 GHz, capturing and analyzing the full band of ultrahigh-frequency RF signals is possible due to rapid performance advancements in real-time acquisition technology. ...
Meeting the testing challenges of Wi-Fi-enabled devices
Jan 1, 2007
By Charles Wright and Jeff Abramowitz Familiarity with the guidelines and methodology of the standardized approach used by the Wi-Fi Alliance test engine for the certification of Wi-Fi-enabled application-specific
devices (ASDs) can streamline the certification process and
facilitate the performance testing of these wireless designs....
New Wi-Fi Alliance certification test methodology
Nov 1, 2006
Azimuth Systems Inc. has readied a solution that enables vendors to perform certification testing according to the new Wi-Fi Alliance test engine architecture....
Measuring RF parameters in GSM/EDGE power amplifiers
Oct 1, 2006
By Antonio Eguizabal In this article, a method for conducting RF lab measurements is presented using commercially available test equipment and following common RF practices. Usually, this involves testing in four bands and two modes....
Addressing the new challenges of MIMO wireless LAN manufacturing test
Oct 1, 2006
By Ewan Shepherd Using MIMO architectures, it is possible to extend the data rate or range of
WLAN components. However, there are multiple transmitters and receivers in
this architecture with stringent specifications, which complicates the design and
manufacture of these systems. Nevertheless, new equipment and techniques
can keep the testing costs within the range of that for 802.11a/g systems....
Bluetooth transceiver design using EDA software
Oct 1, 2006
By Emanuele Stavagna The RF portion of a transceiver designed by Dialog Seminconductor was designed using the EDA software package, Advanced Design System....
Improved InGaP/GaAs HBT technology facilitates high linearity PAs
Oct 1, 2006
By Nan-Lei Larry Wang This article reports on the improvement in a
recently developed InGaP/GaAs HBT for 24 V to 28 V linear PA operation. Key
improvements include adjacent-channel leakage ratio under WCDMA modulation,
ruggedness to sustain high VSWR, and reliability....
How to best marry time-domain system-level verification with frequency-domain RF circuit simulations
Sep 1, 2006
By Ashok Bindra, Editorial Director This article is a discussion based on a panel presented at the IEEE MTT-S International Microwave Symposium in San Francisco, Calif. RF Design posed six questions to six panelists on the topic
of system-level verification of RF circuits and compiled their responses. The panel discusses the pros and cons of various methods that enable system-level verification of RF circuits....
