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2011-02-17 RFMD FEMs deal with high band count, harmonics
RF Micro Devices Inc. expands its line of front end modules for 3G and 4G switch and signal conditioning applications.
2012-03-01 Isolate frequency measurement and sourcing frequency errors near reference frequency harmonics
Read about a methodology to separate the analyzing error from the sourcing error and know the error in counters with the implications to many typical measurements.
2002-01-01 Harmonics suppression with static synchronous converters
Using a power conditioner, designers can manipulate pulse-pattern generators with the help of an assembler programmed PC.
2002-05-10 Harmonics measurements
This application note discusses the measurement of a device's harmonics on a MS462xx tool over a possibly large dynamic range with a number of options.
2010-08-13 CRO tips frequency doubling for low phase noise, harmonics
The coaxial resonator oscillator is a VCO that offers improved performance and lower current consumption for is suited for applications such as digital radio equipment, fixed wireless access, satellite communications systems,and base stations.
2002-03-18 Z-scan RF probe: Multiple frequencies
This application note deals with harmonic interference that may cause inaccuracies in Z-scan monitoring in some dual-frequency systems.
2013-05-15 Understanding link between PFC, efficiency in LEDs
Learn why high-power LED drivers must come with power factor correction.
2005-08-01 RF IC tools still seeking paths to silicon
Complicated by multiple modulation schemes, RF tools have become proficient at simulating behavior on an architectural level.
2002-05-02 Intermodulation Distortion (IMD) measurements using the 37300 series vector network analyzer
This application note discusses the concept of measuring third order products using the Anritsu 373XX series of vector network analyzers in conjunction with Anritsu 68XXX or 69XXX synthesizers.
2003-08-15 GP2010 and GP2105: Reduction of VCO-related EMC radiation
This application note briefs users of Zarlink's GP2010 and GP2105 GPS RF Front-End modules on how to reduce the radiated emissions of VCO harmonics.
2014-08-20 Digital control ushers in a new era of PFC design
Learn how to achieve a high-performance PFC through novel and practical methods for addressing total harmonic injection, individual harmonics magnitude, power factor, efficiency, and total solution cost.
2014-07-14 Calibration of gain, timing errors in ADCs
Here's a look at a novel background calibration method for gain and timing mismatch errors through low complexity digital signal processing algorithms.
2013-04-02 Boost RF harmonic measurements with PXI digitizer
Learn about the measurement challenges involved in measuring low-level harmonics and look into a practical example test set-up.
2011-06-08 71M6513 harmonic performance
Learn about a custom compute engine firmware to support the energy metering in the presence of harmonics.
2014-04-21 Power meter gives cost-savings boost for networks up to 690V
Shneider's PowerLogic PM5000 series provides a fourth current input, onboard web pages for viewing real-time and stored information, enhanced harmonics capabilities, and dual Ethernet ports to daisy chain meters together, which saves on installation and wiring costs.
2000-06-26 Harmonic Frequency Synthesizer and FSK Modulator
This application note discusses a harmonic frequency synthesizer, that uses an accumulator technique to generate frequencies that are evenly spaced harmonics of some minimum frequency, and an FSK modulator, which provides a modification of the harmonic frequency synthesizer and automatically switches between two frequencies in accordance with an NRZ input.
2007-03-12 APN1004: Varactor SPICE models for RF VCO applications
This varactor model is useful for RF VCO applications although it neglects some parasitic components often needed for higher frequency microwave applications, such as the distributed line package model and some capacitance due to ground proximity. For most RF VCO applications, to about 2.5GHz, these parasitic components would not be important unless higher harmonics generated by the varactor affect performance of the VCO. In this case, a more detailed equivalent circuit model is needed. The technique used should be based on the varactor model extraction procedure from S-parameter data.
2008-02-21 Antenna tuning switch offers high linearity, low distortion
Peregrine's new antenna tuning switch incorporates the company's HaRP technology enhancements to deliver linearity of +68dBm IP3, -110dBm IMD, harmonics of better than -80dBc, typical insertion loss of 0.5dB and isolation of 35dB at critical paths.
2009-05-27 Zero-drift instrumentation amplifier (IA) takes the strain out of sensor measurements
This article examines the use of instrumentation amplifiers (IAs) for sensor applications. It highlights system challenges and implementation choices, describes new architectures for IC IAs, and outlines applications such as ratiometric bridges and low-side current sensing.
2005-08-11 X-EMI readies chips to cut EMI by 20 dB
A startup with roots in the network-processor company SiTera Inc. has demonstrated a unique solution to electromagnetic interference problems at a vertical EMI show in Chicago.
2005-04-21 VCXO offers high frequency
Crystek Crystals launched its latest high-performance true sinewave VCXO in a surface-mount 9 x 14-mm package. The new CVSS-940 exhibits a low phase noise of 150dBc/Hz and 50ppm minimum absolute pull range
2006-01-17 VCSO delivers low noise, low jitter
Crystek Crystals introduced a 1GHz voltage controlled saw oscillator that is said to deliver low noise, low jitter and a true sinewave output for a variety of apps.
2015-07-21 Using modular digitisers for power measurements
In this article, we illustrate how to make basic power measurements in AC circuits and devices using a modular digitiser.
2011-04-18 Using baluns for highly integrated RF modules
Know how to quickly determine the best physical layout for a particular Marchand balun that may fit their HBT and pHEMT push-pull amplifiers, balanced mixers, or any one of numerous applications.
2011-09-01 Use spread spectrum clock generators for EMI reduction in digital systems (Part 1)
Spread spectrum clock generators can be used to manage and suppress EMI. However, designers must be aware of the tradeoffs that come along with it.
2007-11-27 UPS targets scalable protection for nets, data centers
Targeting scalable protection for networks and data centers, Falcon Electric Inc. has introduced a series of double-conversion on-line uninterruptible power supplies (UPS).
2014-04-09 Troubleshoot, fix problems on the go
Know how particular oscilloscopes can be used to capture and isolate waveform anomalies to identify source of the problems.
2007-07-05 Transistors address power efficiency in portable apps
ON Semiconductor has expanded its low Vce(sat) bipolar junction transistors (BJTs) portfolio to include PNP and NPN devices that incorporate advanced silicon technology.
2006-05-05 Transformers ensure <100A current leakage
Tripp Lite offers medical-grade isolation transformers with less than 100A of cumulative current leakage.
2008-07-14 Tip of the Week: Simple power supply for FPGAs (Part 1)
Linear Technology recently provided power management support to one designer, who asked for upwards of 40A at 1.5V to power four FPGAs in the smallest board area possible and the highest efficiency to minimize component overheating.
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