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Chipcon AS

April 5, 2002 7:29 am | Product Releases | Comments

Recently at The Wireless Systems Design Conference & Expo, Chipcon AS was presented with a 2001 Technology Award. The CC1000 Low Power CMOS RF Transceiver is designed for very low voltage wireless applications and is ideal for battery applications using single Lithium 3....

The Safety of Futuristic Cars

April 4, 2002 8:47 am | Product Releases | Comments

By Kim Stokes, Editor-in -Chief, kstokes@cahners.com Wireless technology is an integral part of our lives, and continues to infiltrate different areas of our lives everyday. Laptops, PDAs, cellular phones, pagers — we use these devices everywhere. For some reason, we feel that anyone should be able to get in touch with us anywhere....

RadioOne Technology: An Evolutionary Leap for CDMA Phones

April 4, 2002 8:40 am | Product Releases | Comments

Zero IF topology not only eliminates IF chips and all peripheral components, but also simplifies multimode design. By Pradeep Persaud, Qualcomm CDMA Technologies Since the advent of cellular phones, digital baseband development has advanced tremendously, primarily because of the continual reduction in process geometry of CMOS logic ICs....

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Trends for Protecting Wireless WANs and LANs

April 4, 2002 8:40 am | Product Releases | Comments

A retrospective look at wireless security issues that made an impact on the wireless market in the last year and unique challenges that will be faced in the year ahead. By Kim Getgen, RSA Security By 2003, technology analyst projections estimate that 23 million users in the U.S. alone will use wireless LANs (WLAN), with the Asia-Pacific region and Europe showing tremendous growth as well....

Flexible DSP Solution Key to High Speed WLAN Growth

April 4, 2002 8:40 am | Product Releases | Comments

With the introduction of 802.11 applications, operating in the uncluttered 5 GHz range and delivering data rates of 54 mbps, performance improvements have opened broader opportunities to designers. By Systemonic Corporation High Speed Wireless Local Area Networks are fast emerging as the next major growth area in the wireless communications field....

Planning Microwave Radio Systems for 3G Networks

April 4, 2002 8:40 am | Product Releases | Comments

Networks, including 3G (UMTS) cellular ones, will carry ATM circuits over them. As ATM was designed assuming fibre as the bearer medium, limited error detection or correction is employed. However, microwave radio is a suitable medium for ATM transmission, and current radio planning rules can be used....

Linear-in-dB Variable Gain Amplifier Provides True RMS Power Measurements

April 4, 2002 8:40 am | Product Releases | Comments

By Eric Newman and Stephen Lee, Analog Devices, Inc. A generally increasing demand for bandwidth, whether in cellular, broadband access, CATV, MMDS or LMDS applications, is drastically pushing the need for highly linear signal blocks. The tight channel spacing allocated by the FCC drives the need for strict power control and spectral grooming of all radiated emissions....

MMIC Mixer With Integrated LO and IF Amplifiers

April 4, 2002 8:30 am | Product Releases | Comments

Hittite Microwave introduces a high linearity down-converter receiver IC designed to support WCDMA applications where a high third order intercept (OIP3) point is required. A passive mixer coupled with a high dynamic range IF amplifier achieves an OIP3 of +29 dBm, and an input IP3 of +19 dBm. The HMC421QS16 provides a gain of 8 dB and 10 dB typical single sideband noise....

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GaAs Transistors for Base Station Receiver Designs

April 4, 2002 8:30 am | Product Releases | Comments

Agilent Technologies announced two additional GaAs transistors available in the company's MiniPak miniature leadless package. These GaAs transistors are targeted at PC card and base station receiver designs. The Agilent MiniPak measures 1.4 mm × 1.2 mm × 0.7 mm. The 400-micron ATF-551M4 is a single voltage E-pHEMT GaAs FET that does not need a negative gate bias voltage for operation....

L/C Circuit and Filter Network

April 4, 2002 8:30 am | Product Releases | Comments

The 1008 L/C Circuit and 1812 Filter Network are passively integrated surface mount modules with an operating frequency range of 10 MHz to 3 GHz. These modules are designed to be precision tuned resonant circuits and lowpass and highpass filters. A varactor version is available in both the 1008 and 1812 module....

LVDS Repeaters

April 4, 2002 8:30 am | Product Releases | Comments

Fairchild expanded its LVDS interface IC portfolio with four new LVDS repeaters. The newest interface products include 1:1, 2:2, 4:4 and 8:8 LVDS repeaters, which are designed to provide signal-level translation and to buffer signals traveling across backplane or cable in multiple communications applications, including base stations and multiple routing applications....

Low Power Transceiver Module

April 4, 2002 8:30 am | Product Releases | Comments

Cirronet announced the availability of its high speed, low power WIT2411 transceiver module to provide OEMs with highly flexible wireless interconnectivity for a variety of devices and applications. Featuring an over-the-air data rate of 1.23 Mbps, the WIT2411 is appropriate when a cabled connection is not viable-due to obstructions, distance or cost....

Logarithmic RF Power Amplifier

April 4, 2002 8:30 am | Product Releases | Comments

Maxim introduces the MAX4000/MAX4001/MAX4002 family of power controller ICs intended for closed-loop bias control of GSM power amplifiers (PAs). These devices operate in the 100 MHz to 2.5 GHz frequency range, supporting GSM/GPRS, EDGE, or TDMA cellular handset applications. This series of controllers offers three input voltage ranges, eliminating the need for external attenuators and simplifying PA control-loop designs....

Ceramic SMT GPS Diplexer

April 4, 2002 8:30 am | Product Releases | Comments

K & L Microwave Inc. has introduced a ceramic based GPS diplexer. The diplexer, with channels centered at 1227 and 1575 MHz is suitable for both manual and automated installation while enduring temperatures up to 205°C during the reflow solder operation. Its small size and light weight make the unit an excellent choice for pick and place manufacturing techniques without introducing orientation issues due to its surface mount printed...

Analog to Digital Converter

April 4, 2002 8:30 am | Product Releases | Comments

Signal Processing Technologies announces the SPT7722, an 8-bit 250 MSPS analog-to-digital converter (ADC). The SPT7722 delivers both improved linearity and dynamic performance at the same speed and resolution as its predecessor, the SPT7721. An additional member of this family is the SPT7720, an 8-bit 200 MSPS ADC....

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