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Application Notes & Technical Papers - #2
These application notes on vendor sites are some of the fastest moving targets on the web. If you try to hit one of the links and it is gone, please make an attempt to determine the new URL and notify me. Thank you. Due to how large the original page has grown, multiple pages are now used.
Tech Notes on laser diodes, LCD displays & modules, color & light, gas tubes, miniature & subminiature incandescent lamps, and solid state lamps, by The LED Light.
White paper by Mark Elo, Marketing Director of RF Products, Keithley Instruments. Orthogonal frequency division multiplexing (OFDM) is a form of digital modulation used in a wide array of communications systems. This paper will explain what OFDM is, why it’s important, where it’s used, and what test instrumentation is required to maintain it.
White paper By: VISWANATHAN GANESAN WiMAX Application Engineer, Agilent Technologies. This article delves into the complexities associated with digital demodulation of Mobile WiMAX uplink (UL) and downlink (DL) signals. It covers the modulation quality measurement required for Mobile WiMAX transmitters and provides a recommendation of the best tools to use for developing Mobile WiMAX products.
In radio frequency applications there are many techniques to choose from. Some, such as Carrier-Present Carrier-Absent (CPCA), are very simple and inexpensive to implement, while others, such Gaussian Minimized Shift Keying (GMSK), allow for very efficient use of bandwidth at high data rates. Other modulation techniques include Frequency Shift Keying (FSK), Phase Shift Keying (PSK), Quadrature Modulation, Direct Sequence Spread Spectrum (DSSS). By Linx Technologies.
Comprehensive set of *.m files and function, including GUI, to calculate and plot Radar design and analysis issues. This include, the radar equation, radar waveform analysis, pulse compression, matched filter, stretch processing, HRR, phased arrays, Kalaman filter, MTI, clutter analysis, Swerling models and Pd calculations, PRN and Barker codes, SAR, etc.
This application note goes to great lengths to remove the mysteries of RF. Please don't mistake the ease with which you may grasp these basic principals for the effort required to actually execute an RF design. Nooo, noooo, kiddies, don't try this at home. At least not if your job’s on the line. The science of RF is unlike any other area of discipline in electronics. By Linx Technologies.
This technical brief focuses on RFID automatic identification technologies which utilize low-power, short-range wireless communications technology to provide radically enhanced data handling capabilities. By Tektronix.
This is a really handy PDF file by Philips Semiconductors with all sorts of good RF basics stuff, from VSWR and S-parameters to the Smith Chart and antennas. Its 83 pages are packed with good explanations and design equations. Of course, all the examples use Philips parts.
This guide includes RF path planning, site preparation, and installation of outdoor components such as outdoor units, antennas, lightning protection devices, and cabling suitable for outdoor conditions. Usually, you also need to investigate the zoning laws as well as FCC and FAA regulations. By Cisco.
A 42-page tutorial by Tektronix. Given the challenge of characterizing the behavior of today’s RF devices, it is necessary to understand how frequency, amplitude, and modulation parameters behave over short and long periods of time. In these cases, using traditional tools like swept spectrum analyzers (SA) and vector signal analyzers (VSA) might provide snapshots of the signal in the frequency domain and the modulation domain, but this is often not enough information to confidently describe the dynamic RF signals produced by the device.
FlipChip.com - New tutorials are posted monthly, except in August, compliments of George A. Riley, PhD, "Dr. Flip Chip." More than 60 currently available.
When driving through the LAX airport tunnel, a long wire is visible hanging on its walls. ...intended for re-broadcasting local AM and FM radio stations inside the tunnel, all at the same time. Without it, normal AM and FM broadcast reception in the tunnel would be impossible.
White paper By: VISWANATHAN GANESAN WiMAX Application Engineer, Agilent Technologies. This article delves into the complexities associated with digital demodulation of Mobile WiMAX uplink (UL) and downlink (DL) signals. It covers the modulation quality measurement required for Mobile WiMAX transmitters and provides a recommendation of the best tools to use for developing Mobile WiMAX products.
This application note discusses how to avoid RF interference when deploying WiFi and IEEE 802.15.4 / ZigBee radios simultaneously or in close proximity.
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