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BeO and AlN Attenuators

January 29, 2002 5:03 am | Wireless Design & Development | Comments

By Patrick Biebersmith, Florida RF Labs The design of microwave attenuators for high power applications are developed using two preferred ceramics; Beryllium Oxide (BeO) and Aluminum Nitride (AlN). Florida RF Labs has been providing these high power resistive products in both BeO and AlN for nearly 25 years and has found that each material has its own benefits and applications....

Coding and Modulation of Satellite DVB Systems

January 29, 2002 5:03 am | Comments

Various steps used by a satellite based DVB communication system By Maurice L. Schiff, Elanix, Inc. The world is going wireless. In the last decade the explosion of wireless services has been phenomenal. Companies big and small have jumped on the bandwagon to provide one type of service or another....

Harmonic Considerations When Designing with GSM Power Amplifiers

January 29, 2002 5:03 am | Comments

An accurate system design must be implemented to meet ETSI standards. By Jackie Johnson, RF Micro Devices Although the cellular handset market has begun to migrate to 2.5G and 3G technologies, the Global System for Mobile Communications (GSM) remains one of the most widely implemented systems in the world....

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Do You Know <U>Your</U> Alphabet?

January 29, 2002 4:13 am | Comments

By Kim Stokes, Editor-in -Chief, kstokes@cahners.com I thought I knew my alphabet, especially being from the Sesame Street Generation. But since the IEEE announcement of another 802.11 tentative standard for Wireless Local Area Networks (WLANs) — 802.11g — I'm not so sure. As an editor, I am occasionally approached by companies who claim that their widgets are the best and only ones in the world that exist with particular...

Custom Design and Fit Antennas

January 29, 2002 4:05 am | Comments

TECOM Industries., a TRAK Communications company, introduces the model 506051E embedded antenna as the newest member of the established series of Covant embedded antennas. This new model is used in Wireless LAN, IEEE 802.11, bar code scanners, and point-of-purchase RFID applications. The antenna is custom designed to specific size, weight, shape, and performance while providing easy assembly placement....

W-CDMA Product Line Expanded

January 29, 2002 3:56 am | Comments

Fujitsu Compound Semiconductor. expanded its W-CDMA product offering with the introduction of its new FMM5049VT. Featuring very high linear gain (33.0 dB) and 41.0 dBm output power, this MMIC complements their existing "FLLxxxx(yy)-2C Series" of GaAs FET power amplifier products. The FMM5049VT is designed for 2....

Surface Mount Toroidal Inductor

January 29, 2002 3:56 am | Comments

The ST series surface mount inductor is as low as 1.2 mm in height. The catalog ST2006 series is 1.5 mm maximum height. The small size, low DC resistance and high efficiency makes the ST series ideal for DC - DC converter applications in portable electronics. The low-loss, toroidal ferrite core allows an operating frequency to 1 MHz with high efficiency in an extremely small package....

No Power SRAM Module

January 29, 2002 3:56 am | Comments

Innovative Microdevices has recently introduce a new device IM1265 which is 8,388,608 bit fully Static NP SRAM module, organized as 1024K × 8 using CMOS, it has built in miniature lithium battery to support data retention in absence of Vcc (power supply). IM1265 has all the normal characteristics of CMOS SRAM with important benefit of data retention up to 10 years....

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Bluetooth Baseband Controller

January 29, 2002 3:56 am | Comments

Ericsson Microelectronics has expanded its modular Bluetooth offering with the launch of a new baseband controller chip. Pre-qualified to Bluetooth version 1.1, the PBM 990 90 will assist OEMs in the rapid development of Bluetooth products including mobile phones, PDAs and accessories. The new controller is based upon a scalable Ericsson Bluetooth 1....

RF SAW Filters

January 29, 2002 3:56 am | Comments

Toshiba America Electronic Components (TAEC) introduced a small RF surface acoustic wave (SAW) filters. By employing chip scale packaging (CSP), Toshiba Corp. achieved a 40 percent size reduction and 60 percent weight reduction as compared to conventional RF SAW filters. In addition, the devices offer the same electrical performance as SAW Filters offered in larger packaging, giving designers a well-rounded solution for smaller form factor ...

MMIC Receiver for High Index Modulation Schemes

January 29, 2002 3:56 am | Comments

Mimix Broadband introduced a gallium arsenide (GaAs) monolithic microwave integrated circuit (MMIC) receiver comprised of a three stage low noise amplifier (LNA) followed by an image reject fundamental resistive high electron mobility transistor (HEMT) mixer. The image reject mixer removes the need for a bandpass filter after the LNA to remove thermal noise at the image frequency....

Power Distribution Connector System

January 29, 2002 3:56 am | Comments

FCI Electronics announced the latest addition to its PwrBlade( Power Distribution Connector System. The R/A press fit receptacle complements the existing PwrBlade( product line. Press fit tails fit existing solder tail mounting hole diameter and pattern. FCI offers press fit tooling to easily install the connector to the board....

Low Jitter Frequency Translator

January 29, 2002 3:56 am | Comments

Vectron International (VI) has introduced a new low jitter frequency translator designed to simplify a wide variety of frequency translation and clock smoothing applications. The FX-500 is a complete crystal-based frequency translator, providing superior stability and jitter performance. The new product offers a flexible solution that reduces design time, increases circuit reliability and reduces board space....

Miniature Directional Couplers for Medium Power Applications

January 29, 2002 3:56 am | Comments

MECA offers a series of miniature, 50-watt, stripline directional couplers ideal for applications between 500 MHz and 18 GHz where precise power monitoring, external leveling, signal mixing or swept transmission and reflection measurements are necessary. Nominal coupling values of 10, 20 and 30 dB are standard....

Lithium Ion Battery Charge Controller

January 29, 2002 3:56 am | Comments

ON Semiconductor has introduced a single-cell lithium-ion (Li) battery charge controller that boasts a stand-by current of 0.5 microamps (?A). Designed for use in a wide variety of portable electronic devices, the NCP1800 delivers a smaller footprint, reduced part count and extended battery life required by today's highly competitive wireless and portable handheld product manufacturers....

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