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Efficient RF System Design Using Budget Analysis

October 26, 2004 11:18 am | Product Releases | Comments

New budget analysis solution determines RF system performance by monitoring trade-offs and considering critical issues early in the design cycle. By Anitha Swaminathan Today, major challenges for RF system designers include the speed and accuracy of design tool performance. Spreadsheets are widely used to quickly analyze a particular system, but they tend to be inaccurate if non-linearities and frequency dependencies need to be consider...

Mobile Phone Testing: Striving to Control Test Costs Against the Onslaught of Enhanced User Features

October 21, 2004 11:21 am | Product Releases | Comments

New features, power of the carriers, and lower phone prices are driving the market. By Robert Green Mobile phone manufacturing means one thing: very high volume production. During the last few years, annual production of mobile phones has been around 500 million units. This year, production will be closer to 600 million phones....

Design Challenges for a Multi-band OFDM UWB Communications System

September 29, 2004 8:30 am | Product Releases | Comments

UWB is a scalable technology capable of delivering target data at a rate of 110 Mb/s at 10 meters and 480 Mb/s at 2 meters, in realistic multi-path environments. By Anuj Batra, Jaiganesh Balakrishnan, and Anand Dabak Imagine a day when you can buy a high-definition television, plug it into the power outlet and have it work with all the components (DVD, set-top box, personal video recorder, PlayStation, etc....

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ASIC-Style Design Techniques for Programmable Devices

September 29, 2004 8:20 am | Product Releases | Comments

As high gate count FPGAs become more common in wireless devices across all frequencies, the design problems long faced by ASIC designers are beginning to surface in these FPGAs as well. By Salil Raje, Ph.D Rapidly evolving standards have helped make FPGAs popular for wireless applications, Designers can continually modify FPGA-based systems, even in fielded products....

LVDS Solutions to EMI Problems in Ultra-Portable Applications

September 29, 2004 8:19 am | Product Releases | Comments

LVDS offers a number of advantages over LVTTL. Significant among them are better performance, lower overall component count and reduced product cost. By John Whalen Today's cell phones, PDAs and other ultra-portables are becoming smaller and lighter-and more likely to adversely affect one another due to sheer numbers and proximity to other electronic devices....

Open Base-Station Hardware Architectures For 4G Systems

September 29, 2004 8:17 am | Product Releases | Comments

Base station architectures tailored towards converged broadband wireless platforms and open wireless infrastructure is absolutely essential to establish the paradigm of mobile multimedia. By Patrick Naraine First generation mobile communication systems introduced in the 1980s were intended primarily for voice transmission....

The Times, They Are A-Changin'

September 29, 2004 8:16 am | Product Releases | Comments

Ern Worthman, Technology and Editorial Director I suspect that many of you remember that line. If you're too young to remember the original from Bob Dylan, maybe you remember it from one of the U2 concepts circa the late 1980's. But since it's penning, any number of artists, from Bruce Spingsteen to Simon and Garfunckle, to Phil Collins, and countless others have used that 60's quintessential song snippet as an attestable understateme...

Phase-Locked Oscillator

September 29, 2004 8:16 am | Product Releases | Comments

The model LT-25 phase-locked oscillator from EM Research is a frequency synthesizer designed for use in environments where high stability and low phase noise over temperature and vibration are requirements. Utilizing a 10 MHz external frequency reference, the device is characterized by its rise/fall times of < 2 nSec with 8 pF load and phase noise of – 115 dBc/Hz at 20 Hz offset, – 135 dBc/Hz at 10 KHz offset, and – 150 dBc/Hz...

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Amplifier

September 29, 2004 8:16 am | Product Releases | Comments

Herotek introduces a wide band amplifier, the AF0118193A, covering 0.1 to 18 GHz. It is suitable for a variety of applications, including instrumentation, military, and commercial. The amplifier has gain flatness of ± 0.8 dB with gain of 19 dB min., low power consumption, noise figure of 2.8 dB max, Pout 1 dB Compression of +8 dBm min....

Gigahertz-speed Dual A/D Converter

September 29, 2004 8:15 am | Product Releases | Comments

National Semiconductor Corporation debuts a new dual high-performance CMOS analogue-to-digital converter that consumes significantly less power while providing the gigahertz speeds necessary for reliable measurements of high-frequency signals. These high-speed, low-power devices are designed specifically for applications such as digital oscilloscopes, automated test equipment (ATE), base stations, satellites, and communications systems requ...

Low Noise Amps

September 29, 2004 8:11 am | Product Releases | Comments

Spectrum SEI Microwave introduces the DDX series of low noise amplifiers (LNA) designed to provide a solution for dual band GPS applications. A pair of diplexed 3-pole ceramic filters selects only the desired GPS signals, while the low-noise gain stage maintains the receiving system's sensitivity....

GSM Transmitter Option

September 29, 2004 8:11 am | Product Releases | Comments

Keithley adds an option for making GSM transmitter quality modulation measurements to its power analyzer. The model 2800 with GSM option is a solution used to conduct RF power and transmitter modulation measurements. With the option, the model 2800 measures whether a mobile phone transmitter or RFIC transmitter module conforms to GSM standards for modulated transmissions, capable of both calibrating the phone as well as assessing modulation...

Current Monitor

September 29, 2004 8:11 am | Product Releases | Comments

The ZXCT1030 from Zetex is a current monitor which features an internal reference and comparator with a non-latching output. The MSOP8 packaged monitor converts the voltage created across a sense resistor into a 1% accurate proportional output voltage and avoids adding any resistance in the ground plane — the cause of offset and the loss of true-ground reference....

Nanovoltmeter

September 29, 2004 8:11 am | Product Releases | Comments

Keithley introduces its model 2182A nanovoltmeter, which is suitable for making low noise measurements in research, metrology, nanotechnology, superconductivity, and other low voltage/resistance applications. The device can be used with the company's models 6220 DC current source and 6221 AC/DC current source; users are able to make resistance measurements, pulsed I-V measurements, and differential conductance measurements quickly....

Current Sources

September 29, 2004 8:11 am | Product Releases | Comments

Keithley introduces its model 6221 AC and DC current source and model 6220 DC current source. The model 6221 is the only AC current source on the market. Until now, researchers and engineers have been forced to build their own AC current sources. The model 6221 is a current source waveform generator; pulse widths as short as five microseconds can be programmed, and the instrument supports pulsed I-V measurements....

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