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Top 3 considerations when selecting an antenna
In today's world where the smallest, thinnest and most versatile functioning mobile devices are ranked supreme, device manufacturers are finding themselves at a cross road where performance meets size and making the wrong antenna design tradeoff can have severe RF performance implications.
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Low-Power RF
Characterizing Nanometer CMOS PLLs, Sigma-Delta ADCs and AGCs
The verification of analog/RF blocks presents challenges when using a digital fastSPICE simulator. The use of an analog fastSPICE simulator mitigates them.
How Bluetooth and 802.11 will team up to deliver high speed wireless connections
The heart of Bluetooth high-speed technology is the concept of the Generic Alternate MAC/PHY (Generic AMP), an innovative solution for radio substitution that allows the Bluetooth stack to dynamically select the right radio for any application.
Statistical Range Analysis in RF Systems: the "Range Fallacy"
You read every paper you could get your hands on to do with propagation and path loss at the frequency you're using, and you carefully included all the known (and measured) losses, antenna gains, power outputs and sensitivities in a detailed link budget. A few days later the marketing dept arrives at your office: "You said the range would be 5 meters but we tried it at that distance and we could make it fail." What has gone wrong?
See all Low-Power RF »
Commercial Wireless
How to get ready for WiMAX
Are you looking for a comprehensive way to get up to speed on OFDM and MIMO? Here is some information on a new seminar, and some recent related articles that might help get you started.
Top 3 considerations when selecting an antenna
In today's world where the smallest, thinnest and most versatile functioning mobile devices are ranked supreme, device manufacturers are finding themselves at a cross road where performance meets size and making the wrong antenna design tradeoff can have severe RF performance implications.
Statistical Range Analysis in RF Systems: the "Range Fallacy"
You read every paper you could get your hands on to do with propagation and path loss at the frequency you're using, and you carefully included all the known (and measured) losses, antenna gains, power outputs and sensitivities in a detailed link budget. A few days later the marketing dept arrives at your office: "You said the range would be 5 meters but we tried it at that distance and we could make it fail." What has gone wrong?
See all Commercial Wireless »
Test and Measurement
How to get ready for WiMAX
Are you looking for a comprehensive way to get up to speed on OFDM and MIMO? Here is some information on a new seminar, and some recent related articles that might help get you started.
How to characterize surface-mount RF devices
Learn how to use a simple linear simulator capable of manipulating S-parameters and S-Y-Z-matrix transformation to accurately de-embed surface-mount RF components on low-cost test fixtures
Sniffing GSM off the air
National Instruments' David A. Hall shows you how to build your own software defined radio using LabVIEW.
See all Test and Measurement »
Military/Government Electronics
Watching the magnetics, an eternal story
Inductors are important to electronic design, but a mystery to many engineers.
Under the Hood: GPS Special - Garmin nuvi 750 vs. HP iPaq 310
TechOnline's Greg Quirk went inside the Garmin nuvi 750 and HP iPaq 310 GPS navigation systems to find that while they did have some crossover in terms of components, such as the use of chips from SiRF and Wolfson, they both came up with their own distinct approach to how a GPS navigation system should be designed.
Real-world deployments of wireless HD video: Is 802.11 ready?
Although one typically thinks that wireless anti-jamming technologies are used solely by the military and public safety entities, there is actually a growing need for commercial wireless systems to employ anti-jamming technology as well
See all Military/Government Electronics »
Microwave/Millimeter Wave
Characterizing Nanometer CMOS PLLs, Sigma-Delta ADCs and AGCs
The verification of analog/RF blocks presents challenges when using a digital fastSPICE simulator. The use of an analog fastSPICE simulator mitigates them.
A bypass-capacitor dialogue peels back the layers, Part 1
The low-glamour but extremely vital subject of bypass capacitors and decoupling gets additional investigation through a basic dialogue
Top 3 considerations when selecting an antenna
In today's world where the smallest, thinnest and most versatile functioning mobile devices are ranked supreme, device manufacturers are finding themselves at a cross road where performance meets size and making the wrong antenna design tradeoff can have severe RF performance implications.
See all Microwave/Millimeter Wave »
See all Design Center »
About the RF DesignLine How-To Section
RF DesignLine's How-To Section delivers detailed engineering articles focused on the design and development of RF and millimeter-wave and microwave front ends for low-power RF, commercial and military wireless, test and measurement. Topics covered include low-power RF, Wi-Fi, 2G, 2.5G, 3G, 4G, ZigBee, Wibree, Bluetooth, Ultrawideband and WiMAX. Specific topics within those areas include antennas, filters, A-D and D-A converters, mixed-signal design, isolation, noise immunity, amplifiers, detectors, modulators and demodulators.
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