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TechRepublic Resources
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- 802.11n: MIMO really needs smart antennas
- As Wi-Fi standards go, 802.11n has a lot to live up to, especially after hearing how 802.11n's advertised throughput, security, and reliability will allow Wi-Fi to replace existing wired networks. This means 802.11n's RF technology needs to be rock-solid, just like Ethernet cables, while facing ever-changing environmental conditions. ...
- Blog posts 2008-05-14
- iMAT: MIMO without multiple antennas
- Antenna systems are not normally a preeminent topic when it comes to discussions about wireless equipment. That attitude is completely understandable; antennas are just not that interesting to most people. To some, including myself, RF propagation and antenna technology are very worthy discussion topics. My fascination started 40 years ago...
- Blog posts 2008-02-25
- Metamaterial: the unnatural composite is transforming wireless technology
- I get excited when I read about how scientists are able to create experimental conditions that do not occur normally in nature. Recently I was digesting an article on the PhysicsWorld website about how physicists have developed a method using a new class of materials called metamaterial to bring light...
- Blog posts 2008-02-12
- 802.11n equipment is morphing to meet new demands
- Others have presented the idea that equipment based solely on 802.11n will not adequately support emerging applications. If the technology displayed at this year's CES is any indication, Wi-Fi chip and equipment developers are beginning to agree with this assessment. New applications mean new requirements ...
- Blog posts 2008-01-23
- How to make the best of 802.11 multipath environments
- In a post titled Wi-Fi 101: Multipath environments and how they affect Wi-Fi propagation, I examined what happens to 802.11 RF signals when they encounter physical obstacles. I would like to take the next logical step and develop quantifiable relationships between three different Line of Sight LoS environments and the...
- Blog posts 2007-10-30
- Wi-Fi 101: Multipath environments and how they affect Wi-Fi propagation
- Ever wonder why moving your computer or changing the direction of your Wi-Fi antenna can make such a difference in signal strength? In this Wi-Fi 101 lesson, I explain how RF signals-especially Wi-Fi ones-react to real world conditions. RF terminology Before I jump into a discussion on multipath...
- Blog posts 2007-10-18
- Passive Radio Frequency Identification (RFID) - A Primer for New RF Regulations
- The following is intended at highlighting some RFID issues with respect to current and proposed regulatory environments. Passive RFID refers to an RFID tag. Tags that are passive in nature obtain operational power from an active RF field emitted by a corresponding RFID interrogator reader. This is most unlike typical...
- White papers 2005-05-06
- New options for connectivity
- Solving connectivity problems can be tricky when a department in your organization relocates to a nearby building. Ramon Padilla makes the case for a wireless solution. Get acquainted with wireless bridging and its options in this article. Have you ever been faced with the situation in which an ...
- Technical articles 2005-06-13
- Is network security at risk with wireless access points?
- Is network security at risk with wireless access points?I want to install wireless 802.11g access points in our warehouse to upgrade the RF scanning equipment. Management has expressed concerns that this wireless equipment could be a dangerous weak link in our network security. As long as the access...
- Discussion threads 2005-12-10
Additional Resources
- RF Design and Wireless System Architecture With RF Toolbox and RF Blockset
- Model-Based Design enables engineers to complete their projects faster and with less risk of design flaws. The RF Blockset and the RF Toolbox expand the scope of Model-Based Design for wireless communications. Both products enhance the functionality of The MathWorks industry-leading software environments MATLAB and Simulink by providing a broad...
- Webcasts
- RF Design and Wireless System Architecture With RF Toolbox & RF Blockset
- Model-Based Design enables engineers to complete their projects faster and with less risk of design flaws. The RF Blockset and the RF Toolbox expand the scope of Model-Based Design for wireless communications. Both products enhance the functionality of The MathWorks industry-leading software environments MATLAB and Simulink by providing a broad...
- Webcasts
- RF Online (widget)
- RF Online displays you the latest RF Online related news, event announcements, a server time display as well as a core war countdown, and show you the speed of your server connection. This version is the first release on CNET Download.com.
- Software downloads 2007-06-26
- RF interference: Just how important are antennas
- Being able to co-locate multiple RF systems within millimeters of each other in modern wireless devices is in large part due to reducing RF interference. Many of these "interference-busting" innovations are the result of engineers making improvements to antenna systems. by Michael Kassner
- Blog posts 2008-06-15
- New Testing Solutions for CDMA/EVDO Base Station RF Problems
- The jobs of technicians and RF engineers are getting more complicated with the roll out of new technologies such as EVDO, WCDMA and HSDPA. This webcast shows how to simplify their job by using one of the latest measurement tools available from Anritsu. Through this webcast one will learn how...
- Webcasts
- Want to see rm -rf command in progress?
- Sometimes people throw watermelons off thirty-story buildings just to see what they look like on impact (if you've ever watched David Letterman, you know what I mean). In response to that dark human desire to wreak havoc and watch disasters unfold before our eyes, a blogger over at fsckin w/...
- Blog posts 2007-11-01
- RF CMOS Comes of Age
- All-CMOS radio transceivers and systems-on-a-chip are rapidly making inroads into a wireless market that for years was dominated by bipolar and BiCMOS solutions. For applications such as wireless LAN and Bluetooth, they are dominant, and in areas such as GSM cellular transceivers and GPS receivers, they are making inroads. It...
- White papers 2004-04-01
- Propogate Networks, Inc: AutoCell - Evaluation of Impact on 802.11 Thoroughput
- It is a well-known fact that 802.11a/b/g end stations connected to wireless LANs achieve about half the stated bandwidth of the technology used. Often, the mix of access points APs in the WLAN can further erode throughput as overlapping RF footprints create radio interference. One way to mitigate the impact...
- White papers 2004-09-01
- Control Your Network: Comprehensive Management for Demanding Wireless Networks
- There are four basic components essential to wireless network management: planning, security, monitoring and analysis, and management of both network and client devices. However, until recently, administrators have had to either address each component individually, or use an "Off-the-rack" management solution - often not even designed for wireless networks. Motorola's...
- White papers 2007-09-01
- Wireless Systems and RF Safety Issues
- Concerns about the safety of cellular telephones - whether they create health risks or are safe to use in all operating environments - have spread to other wireless devices, such as the wireless networking equipment WLANs manufactured by Cisco Systems and Linksys. These issues are of concern not only to...
- White papers 2005-02-01
- NetCalc - an RF Impedance Calculator (widget)
- NetCalc is broadly based on the program NETCALC by Ian White. NetCalc - an RF Impedance Calculator is a widget that works out Radio Frequency network design ideas. This version is the first release on CNET Download.com.
- Software downloads 2007-10-31
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