Symmetric and asymmetric-coupled lines band-stop filters at Ku/Ka bands
Mar 1, 2006
By Anurag Bhargava, Kamaljeet Singh and Surendra Pal Filters are an integral part of any communication system and they can adapt to various topologies depending upon the requirements. Filters are mainly...
Products
Feb 1, 2006
Electrical terminals ETCO's HT alloy is a high-temperature alloy, which is a cost-effective alternative to nickel-plated steel and beryllium alloys for...
Advanced capabilities converge on RF supremacy
Feb 1, 2006
Mark Valentine, Technical Editor The first wartime lesson in RF supremacy may have been in 1905 during the Russo-Japanese War at the Battle of Tsushima. Limited range or the inability...
Amplifiers
Feb 1, 2006
Driver amplifier WJ Communications Inc. has announced the AH212, growing its portfolio of InGaP HBT intermediate power amplifiers. The AH212 is a 1 W,...
Name change for Nortel
Feb 1, 2006
Nortel PEC Solutions has announced that the company has been renamed Nortel Government Solutions Inc. The change reflects the company's singular focus...
Challenges for next-generation wireless networking
Feb 1, 2006
Ashok Bindra, Editorial Director This year the mood at 3GSM World Congress was optimistic about 3G technologies and services. Simply looking at the products, strategies and development...
Old Russian spacesuit is turned into a satellite
Feb 1, 2006
Just as Sputnik 1, which was launched on Oct. 4, 1957, was the first earth-orbiting artificial satellite that led to the creation of space age, an old...
New markets for smart fabrics and interactive textiles
Feb 1, 2006
New research by Venture Development Corporation, Smart Fabrics and Interactive Textiles, (SFIT) estimates that demand for global SFIT technologies will...
IEEE 802.11n delivers maximum video performance in wireless entertainment applications
Feb 1, 2006
By Gil Epshtein A new breed of wireless entertainment network must provide higher bit rates to support the distribution of multiple-quality video and HTDV streams from a central location, along with total home coverage. These video applications cannot tolerate bandwidth fluctuations. Therefore, guaranteed bandwidth and quality of service (QoS) are essential requirements in order to provide wire-like performance regardless of changing environmental conditions....
Micro-coax pigtails for RF measurements to and beyond 5 GHz
Feb 1, 2006
By Tracey Chavers One of the challenges faced by designers involved in contemporary radio design and debug is being able to accurately measure portions of a signal path that are not connectorized. The answer lies in careful use of pigtail micro-coxial cable....
New platform targets mobile digital TV
Feb 1, 2006
Fabless semiconductor company, Newport Media, unveiled its Sundance series platform technology at the 3GSM World Congress in Barcelona, Spain. The Sundance...
Products
Feb 1, 2006
Active Components Noise diodes NoiseWave has announced the availability of the NW-Diode series broadband noise diodes. The noise diodes offer a symmetrical...
Architectures for mobile RF convergence and future RF transparency
Feb 1, 2006
By Pieter Hooijmans As mobile portable devices such as cell phones, PDAs and laptop computers
acquire multimode, multiband wireless connectivity, there is an ever-increasing
need for greater levels of RF integration. Space, cost and power consumption
constraints will no longer make it viable to have a separate wireless transceiver
for each communication mode....
Power management alternatives for RF portable devices
Feb 1, 2006
By Pedro Pachuca and Laurent Gauthier Several solutions have been found to reduce power consumption at the silicon
level for RF products, including remote controls and RFID systems. For instance,
implementing power management features is one way to extend battery life.
The data manager and strobe oscillator power management features combined
with the systems control can offer substantial reduction in power consumption.
This article will describe the power management features and their impact
on the RF frame, transmission and reception, power consumption, and its
cost-effective results....
Over-the-air performance testing of wireless devices with multiple antennas
Feb 1, 2006
By Michael D. Foegelle The proliferation of wireless devices has led to the development of new
technologies that combine the use of multiple antennas with special algorithms
that can dynamically change the RF performance of the device. Measuring the
performance of these new technologies poses signifcant challenges to current
test methodologies....
Reference design for home base station or femtocell
Feb 1, 2006
A reference design for a low-cost 3G/HSDPA base station as an alternative to WiFi and unlicensed mobile access has been developed by picoChip. The PC8208 modem reference design for a femtocell base station supports HSDPA with a software upgrade to HSUPA....
Advanced architecture for voice collection systems
Feb 1, 2006
By Chris DeSalvo Intercepting voice communications among the vast amount of wireless transmissions is a challenging task. The RF spectrum is crowded with many intermittent...
CES signals quality TV service to mobile handsets
Jan 1, 2006
Ashok Bindra, Editorial Director Just as the new year brings hope and excitement so does the International Consumer Electronics show. As a harbinger of innovative gadgets and a launch...
