Microwaves & RF http://mwrf.com/rss.xml en Power Monitor Keeps Tabs on LMR System Performance http://mwrf.com/test-measurement-analyzers/power-monitor-keeps-tabs-lmr-system-performance <div class="field-byline"> William Bates </div> <div class="field-deck"> This instrument monitors power and VSWR performance up to 16 channels and is scalable to accommodate radio systems of any size operating between 144 and 960 MHz. </div> <div class="node-body article-body">This power measurement system and its two sensors are ideal for checking on the signal levels in land-mobile-radio (LMR) communications systems to 960 MHz.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/test-measurement-analyzers/power-monitor-keeps-tabs-lmr-system-performance" target="_blank">read more</a></p> http://mwrf.com/test-measurement-analyzers/power-monitor-keeps-tabs-lmr-system-performance#comments Commercial Industrial Test & Measurement - analyzers Mon, 06 Jul 2015 16:05:00 +0000 35201 at http://mwrf.com Power Monitor Keeps Tabs on LMR System Performance (.PDF Download) http://mwrf.com/datasheet/power-monitor-keeps-tabs-lmr-system-performance-pdf-download <div class="node-body datasheet-body"><p>Challenges often rear up when trying to maintain the long-term reliability of commercial, industrial, and government land-mobile-radio (LMR) wireless-communications systems. Most of these systems must endure hostile environmental conditions...</p> <p><strong>Register or sign in below to download the full article in .PDF format, including high resolution graphics and schematics when applicable.</strong></p> </div> <div class="og_rss_groups"></div> Gold Mon, 06 Jul 2015 16:01:00 +0000 35221 at http://mwrf.com Ballistic Missile Radar Approved for Sale to Foreign Allies http://mwrf.com/systems/ballistic-missile-radar-approved-sale-foreign-allies <div class="node-body article-body">Through a recent trade agreement, sanctioned by the Foreign Military Sales program, the United States government has made early warning, forward-mode AN/TPY-2 ballistic missile defense radars available to several allied nations.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/systems/ballistic-missile-radar-approved-sale-foreign-allies" target="_blank">read more</a></p> http://mwrf.com/systems/ballistic-missile-radar-approved-sale-foreign-allies#comments Active components Defense Software Systems Mon, 06 Jul 2015 15:17:00 +0000 35211 at http://mwrf.com <p>Forward-mode AN/<span data-scayt-lang="en_US" data-scayt-word="TPY-2">TPY-2</span>&nbsp;ballistic missile defense radars provide tracking information on missiles in the boost phase shortly after launch. Image courtesy of Raytheon Corp.</p> Making the Most of Ultranarrowband Modulation http://mwrf.com/systems/making-most-ultranarrowband-modulation <div class="field-deck"> Looking to achieve high data rates with minimal consumption of bandwidth? Ultranarrowband modulation provides the promise of effective communications—with the proper filtering. </div> <div class="node-body article-body">Ultranarrowband modulation is a means of supporting high data rates over narrow bandwidths.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/systems/making-most-ultranarrowband-modulation" target="_blank">read more</a></p> http://mwrf.com/systems/making-most-ultranarrowband-modulation#comments Commercial Defense Industrial Systems Mon, 06 Jul 2015 15:11:00 +0000 35151 at http://mwrf.com Making the Most of Ultranarrowband Modulation (.PDF Download) http://mwrf.com/datasheet/making-most-ultranarrowband-modulation-pdf-download <div class="node-body datasheet-body"><p>Ultranarrowband (UNB) modulation is an efficient method for transmitting information without using sidebands around a carrier. Also known as very-minimum-sideband-keying (VMSK) modulation or minimum-sideband (MSB) modulation, UNB modulation uses...</p> <p><strong>Register or sign in below to download the full article in .PDF format, including high resolution graphics and schematics when applicable.</strong></p> </div> <div class="og_rss_groups"></div> Gold Mon, 06 Jul 2015 14:30:00 +0000 35191 at http://mwrf.com How to Optimize Linear Distortion Measurements with a Signal Analyzer http://mwrf.com/test-measurement/how-optimize-linear-distortion-measurements-signal-analyzer <div class="node-body article-body">Traditional spectrum analyzer measurements of RF device performance are classically measurements of non-linear performance such as harmonics, Third-Order Intercept (TOI) or input-related spurious responses.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/test-measurement/how-optimize-linear-distortion-measurements-signal-analyzer" target="_blank">read more</a></p> http://mwrf.com/test-measurement/how-optimize-linear-distortion-measurements-signal-analyzer#comments Contributors Keysight Technologies Commercial Test & Measurement Mon, 06 Jul 2015 13:59:00 +0000 35111 at http://mwrf.com How to Optimize Linear Distortion Measurements with a Signal Analyzer (.PDF Download) http://mwrf.com/datasheet/how-optimize-linear-distortion-measurements-signal-analyzer-pdf-download <div class="node-body datasheet-body"><p>Traditional spectrum analyzer measurements of RF device performance are classically measurements of non-linear performance such as harmonics, Third-Order Intercept (TOI) or input-related spurious responses. A very common non-linear measurement that is made is the adjacent channel power measurement...</p> <p><strong>Register or sign in below to download the full article in .PDF format, including high resolution graphics and schematics when applicable.</strong></p> </div> <div class="og_rss_groups"></div> Gold Mon, 06 Jul 2015 13:54:00 +0000 35141 at http://mwrf.com Communications-Relay CubeSats Will Play Part in NASA’s Latest Mars Mission http://mwrf.com/systems/communications-relay-cubesats-will-play-part-nasa-s-latest-mars-mission <div class="node-body article-body">NASA is planning to deploy a twin communications-relay CubeSats system - MarCO - with the Mars Insight lander, which is scheduled to land on the red planet in September 2016. </div> <div class="field-content-focus"> <span>Content Classification:&nbsp;</span> Curated </div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/systems/communications-relay-cubesats-will-play-part-nasa-s-latest-mars-mission" target="_blank">read more</a></p> http://mwrf.com/systems/communications-relay-cubesats-will-play-part-nasa-s-latest-mars-mission#comments News Active components Components Systems Thu, 02 Jul 2015 14:51:00 +0000 35131 at http://mwrf.com <p>The twin-communications relay system, MarCO, is designed to quickly convey status information on NASA&#39;s Insight module as it touches down&nbsp;on Mars. Image courtesy of NASA.</p> GaN-Based AESA Radars Near Full Production http://mwrf.com/systems/gan-based-aesa-radars-near-full-production <div class="node-body article-body">Raytheon is using GaN-based active electronically scanned arrays (AESAs) to upgrade the Patriot Air and Missile Defense System with 360-degree radar coverage against drones, advanced aircraft, and ballistic and cruise missiles.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/systems/gan-based-aesa-radars-near-full-production" target="_blank">read more</a></p> http://mwrf.com/systems/gan-based-aesa-radars-near-full-production#comments News Active components Defense Semiconductors Systems Wed, 01 Jul 2015 21:26:00 +0000 35121 at http://mwrf.com <p>With the addition of GaN-based active electronically scanned arrays (AESAs), the Patriot Missile Defense System will be capable of detecting and tracking&nbsp;airborne threats in a 360-degree radius.&nbsp;Image courtesy of Raytheon.</p> Energy-Harvesting Antenna Aids Wireless Sensors http://mwrf.com/passive-components/energy-harvesting-antenna-aids-wireless-sensors <div class="field-byline"> M.S. Jawad, Nurzaimah Binti Zainol, and Z. Zakaria </div> <div class="field-deck"> A compact antenna with integrated rectifying circuit was simulated and fabricated for converting RF energy to DC voltage at ISM band frequencies. </div> <div class="node-body article-body">This antenna with integrated rectifying circuit is capable of receiving RF energy at the ISM frequency band and converting it to DC voltage.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/passive-components/energy-harvesting-antenna-aids-wireless-sensors" target="_blank">read more</a></p> http://mwrf.com/passive-components/energy-harvesting-antenna-aids-wireless-sensors#comments Commercial Defense Industrial Passive components Wed, 01 Jul 2015 14:13:00 +0000 35091 at http://mwrf.com Energy-Harvesting Antenna Aids Wireless Sensors (.PDF Download) http://mwrf.com/datasheet/energy-harvesting-antenna-aids-wireless-sensors-pdf-download <div class="node-body datasheet-body"><p>Energy harvesting is an efficient method for powering different RF/microwave components for communications systems, including antennas. By harvesting energy for such applications as autonomous radio-frequency-identification (RFID) systems...</p> <p><strong>Register or sign in below to download the full article in .PDF format, including high resolution graphics and schematics when applicable.</strong></p> </div> <div class="og_rss_groups"></div> Gold Wed, 01 Jul 2015 14:09:00 +0000 35101 at http://mwrf.com Rugged Power Dividers Span 0.5 to 6.0 GHz http://mwrf.com/passive-components/rugged-power-dividers-span-05-60-ghz <div class="node-body article-body">A line of rugged coaxial power dividers has been expanded with 30-W models operating from 500 MHz to 6 GHz. </div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/passive-components/rugged-power-dividers-span-05-60-ghz" target="_blank">read more</a></p> http://mwrf.com/passive-components/rugged-power-dividers-span-05-60-ghz#comments Commercial Defense Industrial Passive components Tue, 30 Jun 2015 19:49:00 +0000 35071 at http://mwrf.com Web Tool Helps Build Coaxial Cables http://mwrf.com/passive-components/web-tool-helps-build-coaxial-cables <div class="node-body article-body">An online web tool simplifies the creation of coaxial cable assemblies.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/passive-components/web-tool-helps-build-coaxial-cables" target="_blank">read more</a></p> http://mwrf.com/passive-components/web-tool-helps-build-coaxial-cables#comments Commercial Defense Industrial Passive components Tue, 30 Jun 2015 19:14:00 +0000 35081 at http://mwrf.com Marking Mixers for the Next Application http://mwrf.com/active-components/marking-mixers-next-application <div class="node-body article-body">RF/microwave mixers based on Schottky diodes offer excellent performance in both single- and multiple-diode configurations.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/active-components/marking-mixers-next-application" target="_blank">read more</a></p> http://mwrf.com/active-components/marking-mixers-next-application#comments Active components Commercial Defense Industrial Tue, 30 Jun 2015 17:52:00 +0000 35051 at http://mwrf.com Understanding How Antennas Behave on Moving Vehicles http://mwrf.com/software/understanding-how-antennas-behave-moving-vehicles <div class="node-body article-body">The challenges of integrating an antenna into a vehicle can be overcome with the aid of a commercial EM simulator.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/software/understanding-how-antennas-behave-moving-vehicles" target="_blank">read more</a></p> http://mwrf.com/software/understanding-how-antennas-behave-moving-vehicles#comments Commercial Defense Industrial Software Tue, 30 Jun 2015 16:07:00 +0000 35061 at http://mwrf.com Waveguide Slot Array Antenna Snares 120 GHz http://mwrf.com/passive-components/waveguide-slot-array-antenna-snares-120-ghz <div class="node-body article-body">This compact array antenna achieves a broad bandwidth of 118 to 140 GHz. </div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/passive-components/waveguide-slot-array-antenna-snares-120-ghz" target="_blank">read more</a></p> http://mwrf.com/passive-components/waveguide-slot-array-antenna-snares-120-ghz#comments Commercial Defense Industrial Passive components Mon, 29 Jun 2015 21:06:00 +0000 35031 at http://mwrf.com Antennas and Arrays Fit on Organic Substrates http://mwrf.com/passive-components/antennas-and-arrays-fit-organic-substrates <div class="node-body article-body">Work on different W-band antenna configurations involved the use of Kapton and liquid-crystal-polymer (LCP) substrate materials. </div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/passive-components/antennas-and-arrays-fit-organic-substrates" target="_blank">read more</a></p> http://mwrf.com/passive-components/antennas-and-arrays-fit-organic-substrates#comments Commercial Defense Industrial Passive components Mon, 29 Jun 2015 20:45:00 +0000 35041 at http://mwrf.com Fast USB Sensors Read Power Levels to 18 GHz http://mwrf.com/test-measurement-analyzers/fast-usb-sensors-read-power-levels-18-ghz <div class="field-deck"> This pair of USB-powered and -controlled power sensors read power levels over a wide 80-dB dynamic range and across a frequency range of 10 MHz to 18 GHz. </div> <div class="node-body article-body">The MA24208A and MA24218A USB power sensors perform fast and accurate power measurements across a wide dynamic range and total frequency range of 10 MHz to 18 GHz.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/test-measurement-analyzers/fast-usb-sensors-read-power-levels-18-ghz" target="_blank">read more</a></p> http://mwrf.com/test-measurement-analyzers/fast-usb-sensors-read-power-levels-18-ghz#comments Anritsu Commercial Defense Industrial Test & Measurement - analyzers Mon, 29 Jun 2015 16:11:00 +0000 35011 at http://mwrf.com Fast USB Sensors Read Power Levels to 18 GHz (.PDF Download) http://mwrf.com/datasheet/fast-usb-sensors-read-power-levels-18-ghz-pdf-download <div class="node-body datasheet-body"><p>Power measurements are critical for gauging the performance of both wired and wireless RF/microwave systems. On that note, a pair of power sensors developed by Anritsu Co. leverages the flexibility...</p> <p><br /> <strong>Register or sign in below to download the full article in .PDF format, including high resolution graphics and schematics when applicable.</strong></p> </div> <div class="og_rss_groups"></div> Gold Mon, 29 Jun 2015 15:57:00 +0000 35021 at http://mwrf.com Looking Ahead to 5G http://mwrf.com/systems/looking-ahead-5g <div class="node-body article-body">As interest in 5G wireless technology continues to increase, the International Telecommunication Union (ITU) has chosen a formal name for the upcoming next-generation cellular system.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/systems/looking-ahead-5g" target="_blank">read more</a></p> http://mwrf.com/systems/looking-ahead-5g#comments Commercial Editor Columns Industrial Systems Fri, 26 Jun 2015 16:44:00 +0000 35001 at http://mwrf.com Wireless Standards Testing http://mwrf.com/microwaves-and-rf/2015-06-26 <div class="node-body magazine_issue-body"></div> <fieldset class="fieldgroup group-mag-teasers"> </fieldset> <fieldset class="fieldgroup group-publication-info"><legend>Publication Info</legend> </fieldset> <div class="og_rss_groups"></div> Fri, 26 Jun 2015 04:00:00 +0000 34931 at http://mwrf.com Modeling Multipliers through Terahertz Frequencies http://mwrf.com/active-components/modeling-multipliers-through-terahertz-frequencies <div class="node-body article-body">Modeling methods were examined for simulating the performance of Schottky diodes at THz frequencies.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/active-components/modeling-multipliers-through-terahertz-frequencies" target="_blank">read more</a></p> http://mwrf.com/active-components/modeling-multipliers-through-terahertz-frequencies#comments Active components Commercial Defense Industrial Wed, 24 Jun 2015 18:38:00 +0000 34991 at http://mwrf.com Scrutinize the Specs to Identify the Right Switch (.PDF Download) http://mwrf.com/datasheet/scrutinize-specs-identify-right-switch-pdf-download <div class="node-body datasheet-body"><p>Switches for RF/microwave applications have evolved into many forms, from slower, higher-power electromagnetic switches to the fastest diode switches for smaller signals. Microelectromechanical-systems (MEMS) technology, which has made...</p> <p><strong>Register or sign in below to download the full article in .PDF format, including high resolution graphics and schematics when applicable.</strong></p> </div> <div class="og_rss_groups"></div> Gold Wed, 24 Jun 2015 18:30:00 +0000 34981 at http://mwrf.com Scrutinize the Specs to Identify the Right Switch http://mwrf.com/active-components/scrutinize-specs-identify-right-switch <div class="field-deck"> Selecting an RF/microwave switch requires understanding the needs of an application and sorting through different switch types with considerably different performance levels. </div> <div class="node-body article-body">Selecting a switch for an RF/microwave application can be simplified by understanding the capabilities of different switch types. </div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/active-components/scrutinize-specs-identify-right-switch" target="_blank">read more</a></p> http://mwrf.com/active-components/scrutinize-specs-identify-right-switch#comments Active components Commercial Defense Industrial Wed, 24 Jun 2015 18:10:00 +0000 34971 at http://mwrf.com “Connect Ability” Challenge Aims to Improve Lives of the Disabled with Technology http://mwrf.com/software/connect-ability-challenge-aims-improve-lives-disabled-technology <div class="node-body article-body">In an attempt to improve the lives of people with disabilities, AT&T and New York University’s ABILITY Lab have partnered to launch the first “Connect Ability” competition.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/software/connect-ability-challenge-aims-improve-lives-disabled-technology" target="_blank">read more</a></p> http://mwrf.com/software/connect-ability-challenge-aims-improve-lives-disabled-technology#comments Medical Services Software Fri, 19 Jun 2015 19:35:00 +0000 34941 at http://mwrf.com <p>Developers participating in the &quot;Connect Ability&quot; challenge will aim to design technology that will improve the quality of life of people with disabilities. Image courtesy of ThickStock.&nbsp;</p> Next-Gen Weather Sensor Reaches Lowest Atmosphere Layers http://mwrf.com/systems/next-gen-weather-sensor-reaches-lowest-atmosphere-layers <div class="node-body article-body">PlanetiQ’s Pyxis weather instrument uses next-generation sensor technology to penetrate through clouds and storms, producing the highly calibrated data required to improve weather forecasting, climate monitoring, and space weather prediction.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/systems/next-gen-weather-sensor-reaches-lowest-atmosphere-layers" target="_blank">read more</a></p> http://mwrf.com/systems/next-gen-weather-sensor-reaches-lowest-atmosphere-layers#comments News Active components Systems Fri, 19 Jun 2015 13:38:00 +0000 34921 at http://mwrf.com SMAP Instruments Provide Global Soil Moisture Maps http://mwrf.com/systems/smap-instruments-provide-global-soil-moisture-maps <div class="node-body article-body">The Soil Moisture Active Passive (SMAP) spacecraft will provide global measurements of soil moisture to help scientists understand climate changes.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/systems/smap-instruments-provide-global-soil-moisture-maps" target="_blank">read more</a></p> http://mwrf.com/systems/smap-instruments-provide-global-soil-moisture-maps#comments News Active components Systems Thu, 18 Jun 2015 18:11:00 +0000 34911 at http://mwrf.com <p>The Soil Moisture Active Passive (SMAP) spacecraft will provide global measurements of soil moisture to help scientists understand climate changes. (Artistic rendering courtesy of NASA/JPL-Caltech)</p> Antennas Get No Respect http://mwrf.com/blog/antennas-get-no-respect <div class="node-body blog-body">The final frontier of wireless technology is antenna design, and the future of advanced networks will depend heavily on improved antenna technology.</div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/line-sight">Line of Sight</a></li> </ul></div><p><a href="http://mwrf.com/blog/antennas-get-no-respect" target="_blank">read more</a></p> http://mwrf.com/blog/antennas-get-no-respect#comments Commercial Mobile Services Systems Line of Sight Thu, 18 Jun 2015 16:42:00 +0000 34901 at http://mwrf.com LTE Nodes Show Long-Range Communications Promise http://mwrf.com/systems/lte-nodes-show-long-range-communications-promise <div class="node-body article-body">General Dynamics Mission Systems and the Public Safety Communications Research Program recently completed long-range communications testing of the Band Class 14 eNodeB.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/systems/lte-nodes-show-long-range-communications-promise" target="_blank">read more</a></p> http://mwrf.com/systems/lte-nodes-show-long-range-communications-promise#comments News Mobile Systems Thu, 18 Jun 2015 14:31:00 +0000 34891 at http://mwrf.com <p>General Dynamics Mission Systems and the Public Safety Communications Research Program recently completed long-range communications testing of the Band Class 14 eNodeB. (Image courtesy of General Dynamics Mission Systems)</p> HetNet Infrastructure Expected to Largely Replace Macrocell Networks http://mwrf.com/services/hetnet-infrastructure-expected-largely-replace-macrocell-networks <div class="node-body article-body">Driven by the growing influx of mobile broadband traffic and increased network coverage requirements, wireless carriers are looking to replace traditional macrocell based networks with Heterogeneous Network infrastructure.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/services/hetnet-infrastructure-expected-largely-replace-macrocell-networks" target="_blank">read more</a></p> http://mwrf.com/services/hetnet-infrastructure-expected-largely-replace-macrocell-networks#comments News Mobile Services Systems Wed, 17 Jun 2015 17:16:00 +0000 34881 at http://mwrf.com <p>According to a recent report, wireless carriers are no longer interested in the&nbsp;networks generated&nbsp;by large cellular base station arrays. Heterogeneous Networks are in style&nbsp;and slowly becoming a force in the wireless industry.&nbsp;Image courtesy of ThinkStock.</p>