Understanding the antenna design challenge
Sep 1, 2006
By Denis Ruffieux To maintain the 13.56 MHz RFID system in a functional state, it is necessary for the system designer to prevent the coupling factor from getting too high....
Is RFID secure?
Sep 1, 2006
By Cheryl Ajluni, Editor Despite the increasing popularity of RFID technology, the electronic information it deals with may not be as secure as was once thought....
Reducing the design complexity of next-generation handsets
Sep 1, 2006
By Jennifer Chou This article will discuss the many available modulation technology options that are used for various EDGE systems, including direct-launch conversion transmitter (DCT),
small-signal polar modulation (sometimes called “polar lite”), and large-signal open polar modulation, and compare them to the more effective, large-signal closed polar loop solution that delivers the best overall system performance and ease of
manufacturing....
Mitigating interference to maximize spectral efficiency in 3G/4G networks
Sep 1, 2006
By John Thomas This
article describes an interference cancellation technology comprising
an ASIC/core hardware and DSP-based software, which
cancels interference from all traffic channels, and from all interfering sources for 2.5G, 3G and 4G networks....
Harnessing the potential of powerline communications using the HomePlug AV standard
Aug 1, 2006
By Srinivas Katar, Manjunath Krishnam, Richard Newman and Haniph Latchman Using powerline communications for home networking is getting increasing attention. This article discusses the challenges posed by PLC channels and how the HomePlug AV standard overcomes them....
On the Road to Ubiquitous Wireless Connectivity
Aug 1, 2006
Ashok Bindra, Editorial Director We may not be there yet with ubiquitous wireless connectivity. But, the rate at which CMOS RF/analog, mixed-signal and digital signal-processing (DSP)...
Highly integrated transceiver enables high-volume production of GSM/EDGE handsets
Jul 1, 2006
By Patrick Morgan By combining a unique dual-transmitter architecture and a digital low-IF receiver architecture, EDGE services can be enabled in GSM handsets with best-in-class receiver sensitivity, integrated loop filters, elimination of the transmit SAWs and baluns and only one simple power measurement step for EDGE transmitter calibration....
Providing reliable sensing and control using ZigBee wireless networks
Jul 1, 2006
By Peter Wotton This article demystifies ZigBee and demonstrates a light switch, a subset of a typical home networking environment, as an application example to describe the devices needed in the development of a wireless sensor network based on the ZigBee standard....
Multigigabit wireless connectivity at 70, 80 and 90 GHz
May 1, 2006
By Jonathan Wells This article introduces a wireless technology that supports the fastest radios available today. Operating at the FCC-approved 70/80 GHz bands, commercially available products offer full-duplex data rates in excess of 1 Gbps in cost-effective, reliable architectures, with carrier class 99.999% weather availability at distances of one mile or more....
Making GPS a necessary feature in consumer products
May 1, 2006
Ashok Bindra, Editorial Director If you remember, global positioning systems or GPS assisted only a few in finding directions to their destinations from a starting point. Aside from the...
