Wireless Design & Development articles from October 2004

Wireless Design & Development archives from October 2004

The times, they are a-changin'.(future of internet)(Column)
October 1, 2004... 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 its penning, any number of artists, from Bruce...

Balanced mixer.(What's Hot)
October 1, 2004... Mimix Broadband introduces a GaAs MMIC fundamental balanced mixer, which is for use as a downconverter. Using 0.15 micron gate length GaAs pseudomorphic high electron mobility transistor (pHEMT) device model technology, this mixer covers the 32...

Wireless transceiver.(What's Hot)
October 1, 2004... The 9XTend wireless transceiver from Maxstream provides OEMs with 256-bit AES encryption, power output of 1 mW to 1 W (software selectable), transmission range up to 3000 ft. indoor/urban environments (up to 40 miles line-of-sight), and 900 MHz...

Power amplifier.(What's Hot)
October 1, 2004... Sirenza Microdevices' SZA-5044 power amplifier, designed for WLAN 802.11a and WiMAX 802.16 applications, features 22 dBm linear output power at 3% EVM and has 28 dB gain from a 5 V supply. This 4.9 to 5.9 GHz, 1 W PA is suitable for either...

Oscillators.(What's Hot)
October 1, 2004... Valpey Fisher introduces the VFTNH series, an addition to the company's OCXO product line. Power consumption is less than 120 mW, with a frequency range up to 220 MHz, and phase noise of -165 dBc/Hz at 10 kHz offset typical. The series can be...

Feed-thru capacitors.(What's Hot)
October 1, 2004... Tusonix's UL recognized, all-ceramic shoulder feed-thru capacitors are designed to offer a high AC/DC withstanding voltage and a working voltage up to 250 VAC. The product has a coaxial feed-thru configuration and a solder-in design, suitable...

SoC solution.(What's Hot)
October 1, 2004... RF Micro Devices announces the highly integrated SiW4000[TM] system-on-chip (SoC) Bluetooth[R] solution with Enhanced Data Rate (EDR). With its small size and low power consumption, the SiW4000 is designed for mobile phone applications. The...

Highpass filter.(What's Hot)
October 1, 2004... This filter from K&L Microwave offers 50 dB at DC to 9.3 GHz. The outline dimensions are 1.1" x 1.0" x 1.0" with type N connectors. K&L Microwave, Inc. Use InfoLINK 4K1308 or Call 800-287-9942 [ILLUSTRATION OMITTED]

Testing capabilities.(What's Hot)
October 1, 2004... Agilent introduces wireless test benches, sources, and measurement capabilities for its advanced Design System (ADS) 2004A EDA software that enable simulation of wireless designs to WIGAN, 3GPP, and TD-SCDMA standards. The capabilities allow RF...

COTS connectors for military and aerospace designs: the days of specialty military connectors are numbered so the cable and connector industry is reinventing this interface.(technology focus military aerospace)(commercial off the shelf)
October 1, 2004... It's no secret that there is tremendous pressure for the military to go with COTS components whenever possible. Interconnect is one area where that pressure is really on, since connectors are relatively uncomplicated devices, when compared to...

Phase-locked oscillator.(Technology Focus Military Aerospace)
October 1, 2004... 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...

Wide band amplifier.(Technology Focus Military Aerospace)
October 1, 2004... 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 [+ or -] 0.8 dB with gain of...

Tantalum capacitors.(Technology Focus Military Aerospace)
October 1, 2004... AVX's range of tantalum capacitors are suitable for applications where reliability in severe conditions are critical. The products consist of TAZ, TBJ, and CWR Series. AVX also offers COTS Plus enhanced reliability tantalum capacitors. TAZ...

SAW oscillators.(Technology Focus Military Aerospace)
October 1, 2004... ILSI's SAW stabilized oscillators at 1030 MHz and 1090 MHz will operate at Fo [+ or -] 300 kHz with power at 12 dBm [+ or -] 2 db over -55[degrees]C to 105[degrees]C. The oscillator can be Jan, Jantx compliant if required. Package is 8 Pin...

LVDS solutions to EMI problems in ultra-portable applications: LVDS offers a number of advantages over LVTTL including better performance, lower overall component count, and reduced product cost.(electromagnetic interference)(Low-Voltage Differential Signaling)
October 1, 2004... Cell phones, PDAs, and other ultra-portables are becoming smaller and lighter--and are more likely to adversely affect one another due to sheer numbers and proximity to other electronic devices. Twenty years ago, it would be a rare occurrence...

Open base station hardware architectures for 4G systems: base station architectures tailored towards converged broadband wireless platforms and open wireless infrastructure are essential to establish the paradigm of mobilemultimedia.(Cover Story)
October 1, 2004... First generation mobile communication systems introduced in the 1980s were intended primarily for voice transmission. The initial systems used analog amplitude and frequency modulation. Second-generation (2G) mobile systems took advantage...

ASIC-style design techniques for programmable devices: 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.(Featured Technology)(Field Programmable Gate-Array)(Application-Specific Integrated Circuit)
October 1, 2004... Rapidly evolving standards have helped make FPGAs popular for wireless applications. Designers can continually modify FPGA-based systems, even in fielded products. The highest-performance and highest-density "Platform FPGAs" are frequently...

Microcontroller.(Power)
October 1, 2004... EM Microelectronic introduces the EM6607, a low voltage, low power RISC microcontroller that features four high-current I/Os and the equivalent of 4 kB ROM, and operates on a 32 kHz crystal. The product is available in 24-and 28 pin TSSOP and...

Fixed attenuators.(Transmission Technologies)
October 1, 2004... Mini-Circuits' 50W, 40 dB, 100 W fixed attenuators are designed for testing high power components used in communication systems. With 40 dB attenuation they can also be used as a termination for high power amplifiers. The BW-40N 100W attenuator...

Patch antenna.(Transmission Technologies)
October 1, 2004... Model PCA3.5LSL is a dual band stacked patch antenna that features two isolated connectors on its backside. It may be used as a stand-alone antenna or as a feed in a reflector system. This antenna is available in other frequencies and...

Cavity filter.(Transmission Technologies)
October 1, 2004... K&L Microwave announces the introduction of the 3C103200/U2-OP/OP cross coupled miniature cavity filter from offers an alternative to conventional cavity devices. By exploiting cross coupled technology to generate high attenuation in the...

System on a chip.(SoC)
October 1, 2004... Xemics introduces the XE88LC07A radio machine. It exploits the BitJockey[TM] to send data over ISM band transceivers at up to 156 kb/s. The core is able to interface to a CODEC, compress/decompress voice while sending/receiving data to/from a...

CMOS transceivers.(Subsystems)
October 1, 2004... Berkana introduces single-chip CMOS transceivers. The BKW9000 family features receiver performance across all four bands with a sensitivity of -110 dBm while consuming 90 mA current. The devices support bands through integration of four LNAs,...

900 MHz modems.(Subsystems)
October 1, 2004... Available with one watt of output power, AeroComm's ConnexLink[TM] packaged transceivers can talk over distances of 20 miles line-of-sight. Units can be set up for cable-free communication between industrial RS232/422/ 485 devices, providing...

RF switch.(Switching)
October 1, 2004... JFW's RF "hot switch" covers cellular, PCS, UMTS frequencies, and beyond. The 50S-1352 is a 1P2T, PIN diode switch capable of switching up to 50 W with the power on. Solid state construction, insertion loss of 0.9 dB maximum, and an operating...

Design software.(Software)
October 1, 2004... Catalytic announces the first in a series of digital signal processing (DSP) design automation software products, creating an automated path from algorithm specification to implementation for DSP design cycles. The Fixed Point DSP Studio is an...

RF design software.(Software)
October 1, 2004... The MathWorks announces the RF Blockset and the RF Toolbox, two products designed to expand the scope of model-based design for signal processing and communications engineering applications. Both software products enhance the functionality of...

Design kit.(Software)
October 1, 2004... Advanced RFIC introduces a scalable and interactive inductor design kit targeted for Radio Frequency (RF) applications, allowing RF integrated circuits (IC) designers to reduce time from their design cycles and to achieve first pass silicon...

Analysis software.(Software)
October 1, 2004... Ansoft announces Siwave[TM] v2, a full-wave electromagnetic field simulator that analyzes signal- and power-integrity effects in high-performance PCBs and IC packages. SIwave's full-wave, finite-element technique allows designers to...

Design guide.(Software)
October 1, 2004... Agilent announces multiband orthogonal frequency division multiplexing (MB-OFDM) enhancements to the Agilent Ultra-Wideband (UWB) DesignGuide. The design guide works with Agilent's Advanced Design System (ADS) 2004A electronic design automation...

Quadrature hybrids.(TX/RX)
October 1, 2004... Merrimac has introduced the Zapper series of miniature quadrature hybrids that provide 3 dB, 90[degrees] coupling and are drop-in replacements for hybrids used in wireless base station amplification, but have twice file power handling ability...

Filters.(TX/RX)
October 1, 2004... Trilithic announces the miniature series of filters that range from surface mount to MIL-SPEC and space-qualified designs. They include low-pass, high-pass, band-reject, and bandpass types with Chebyshev, Butterworth, Bessel, linear phase,...

Antenna system.(TX/RX)
October 1, 2004... conneX announces a 2.4 GHz space diversity antenna system for indoor wireless networks. The MM24-5DI features a pair of high gain omnidirectional antennas. The antennas feature a rubberized magnetic weighted base for nonskid and non-scratch...

Analog devices.(Mixed Signal)
October 1, 2004... Microchip announces an analog device for the digital environment. These devices enable a standard two-stage amplifier signal chain to be implemented into an eight-lead package with a power-saving chip select. The internal connection of the two...

Technology award: gigahertz-speed dual A/D converter.(Editor's Choice)
October 1, 2004... National Semiconductor Corporation debuts a new dual high-performance CMOS analog-to-digital converter that consumes significantly less power while providing the gigahertz speeds necessary for reliable measurements of high-frequency signals....