Microwaves & RF http://mwrf.com/rss.xml en QAM Is Rising: 1024QAM And Beyond (.PDF Download) http://mwrf.com/datasheet/qam-rising-1024qam-and-beyond-pdf-download <div class="node-body datasheet-body"><p>Demands on high-speed wireless systems have grown with the increasing numbers of smartphone users and their devices&rsquo; many functions, including wireless Internet access. As the capacities of global wireless-communications standards...</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><br /> &nbsp;</p> </div> <div class="og_rss_groups"></div> Gold Wed, 16 Apr 2014 18:54:00 +0000 24371 at http://mwrf.com QAM Is Rising: 1024QAM And Beyond http://mwrf.com/systems/qam-rising-1024qam-and-beyond <div class="field-byline"> Dr. Habeeb Ur Rahman Mohammed </div> <div class="field-deck"> As demands for more voice, data, and video services rise, wireless communications networks must be configured to handle more complex levels of modulation. </div> <div class="node-body article-body">Higher modulation levels support more efficient communications, but require receivers with extremely low noise levels. </div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/systems/qam-rising-1024qam-and-beyond" target="_blank">read more</a></p> http://mwrf.com/systems/qam-rising-1024qam-and-beyond#comments Commercial Defense Industrial Systems Wed, 16 Apr 2014 18:51:00 +0000 24351 at http://mwrf.com Eliminating the Tradeoffs and Limitations of Your Pulse Measurement Test Solution http://mwrf.com/test-measurement-analyzers/eliminating-tradeoffs-and-limitations-your-pulse-measurement-test-solutio <div class="node-body article-body">Next generation radar systems face multiple difficult demands. The pace and variety of new requirements need multi-use/function/mode adaptive radars, to be used for different applications. </div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/test-measurement-analyzers/eliminating-tradeoffs-and-limitations-your-pulse-measurement-test-solutio" target="_blank">read more</a></p> http://mwrf.com/test-measurement-analyzers/eliminating-tradeoffs-and-limitations-your-pulse-measurement-test-solutio#comments Test & Measurement - analyzers White Paper Mon, 14 Apr 2014 14:28:00 +0000 24341 at http://mwrf.com Correlate Handheld And Benchtop Measurements (.PDF Download) http://mwrf.com/datasheet/correlate-handheld-and-benchtop-measurements-pdf-download <div class="node-body datasheet-body"><p>In order to maintain the performance of wireless communications systems, technicians and engineers are increasingly being asked to head into the field to make RF/microwave measurements&mdash;often in less-than-hospitable conditions. While the term &ldquo;precise microwave measurements&rdquo; may suggest...</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, 14 Apr 2014 13:49:00 +0000 24331 at http://mwrf.com Correlate Handheld And Benchtop Measurements http://mwrf.com/test-measurement-analyzers/correlate-handheld-and-benchtop-measurements <div class="field-byline"> Tom Hoppin </div> <div class="field-deck"> High-frequency measurements made in the field on portable instruments are now consistent with measurements made on trusted, benchtop laboratory equipment. </div> <div class="node-body article-body">Correlating measurements made with portable instruments in the field and benchtop instruments in the laboratory helps verify the quality of those in-field measurements. </div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/test-measurement-analyzers/correlate-handheld-and-benchtop-measurements" target="_blank">read more</a></p> http://mwrf.com/test-measurement-analyzers/correlate-handheld-and-benchtop-measurements#comments Agilent Technologies Commercial Defense Industrial Test & Measurement - analyzers Mon, 14 Apr 2014 13:44:00 +0000 24301 at http://mwrf.com Differential Drive Optimizes Active Mixers (.PDF Download) http://mwrf.com/datasheet/differential-drive-optimizes-active-mixers-pdf-download <div class="node-body datasheet-body"><p>Broadband active mixers and in-phase/quadrature (I/Q) demodulators are available with excellent performance across more than three octaves. This equips them for receiver designs...</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><br /> &nbsp;</p> </div> <div class="og_rss_groups"></div> Gold Fri, 11 Apr 2014 20:26:00 +0000 24321 at http://mwrf.com Differential Drive Optimizes Active Mixers http://mwrf.com/mixed-signal-semiconductors/differential-drive-optimizes-active-mixers <div class="field-byline"> Qui Luu and Benjamin Sam </div> <div class="field-deck"> Differential drive can be used to optimize the performance of active mixers and in-phase/quadrature (I/Q) demodulators for broadband and reconfigurable radio receivers. </div> <div class="node-body article-body">A broadband balun is a useful component for creating a signal path for an active RF/microwave mixer.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/mixed-signal-semiconductors/differential-drive-optimizes-active-mixers" target="_blank">read more</a></p> http://mwrf.com/mixed-signal-semiconductors/differential-drive-optimizes-active-mixers#comments Analog Devices Commercial Industrial Mixed-signal semiconductors Fri, 11 Apr 2014 20:23:00 +0000 24311 at http://mwrf.com Basics of Investigating Inductor Requirements For Power And RF/Microwaves Designs http://mwrf.com/white-paper/basics-investigating-inductor-requirements-power-and-rfmicrowaves-designs <div class="node-body article-body">Inductors are key circuit elements in many electronic designs, from power and voltage-conversion circuits to higher-frequency RF/microwave circuits. Selecting an inductor that is a good fit for a particular circuit design </div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/white-paper/basics-investigating-inductor-requirements-power-and-rfmicrowaves-designs" target="_blank">read more</a></p> http://mwrf.com/white-paper/basics-investigating-inductor-requirements-power-and-rfmicrowaves-designs#comments White Paper Wed, 09 Apr 2014 15:57:00 +0000 24281 at http://mwrf.com Wireless Technology http://mwrf.com/microwaves-and-rf/2014-04-09 <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> Wed, 09 Apr 2014 04:00:00 +0000 24291 at http://mwrf.com Software-Defined-Radio Market Sees Increased Growth http://mwrf.com/software/software-defined-radio-market-sees-increased-growth <div class="field-byline"> Sarah Mangiola </div> <div class="node-body article-body">Airborne, naval, and land-based software-defined-radios are expected to drive the market between now and 2020, growing at a CAGR of 11.4%. </div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/software/software-defined-radio-market-sees-increased-growth" target="_blank">read more</a></p> http://mwrf.com/software/software-defined-radio-market-sees-increased-growth#comments News Defense Software Fri, 04 Apr 2014 20:01:00 +0000 24261 at http://mwrf.com Wireless-LAN Market Enjoys Growth http://mwrf.com/systems/wireless-lan-market-enjoys-growth <div class="field-byline"> Sarah Mangiola </div> <div class="node-body article-body">According to Dell’Oro Group, the recent increase in the wireless LAN market is due to IEEE 802.11ac unit shipments, which caused the market to grow 9% in the fourth quarter of 2013. </div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/systems/wireless-lan-market-enjoys-growth" target="_blank">read more</a></p> http://mwrf.com/systems/wireless-lan-market-enjoys-growth#comments News Components Systems Fri, 04 Apr 2014 19:12:00 +0000 24251 at http://mwrf.com <p>IEEE 802.11ac devices like smartphone and tablets will continue to grow significantly in 2014.</p> MMIC PIN-Diode Limiters Operate to 20 GHz (.PDF Download) http://mwrf.com/datasheet/mmic-pin-diode-limiters-operate-20-ghz-pdf-download <div class="node-body datasheet-body"><p>To prevent damage to highly sensitive receiver front ends, limiters are used to sink extra RF power away from sensitive circuits. Limiter circuitry performs as a low-loss...<br /> <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> Fri, 04 Apr 2014 15:36:00 +0000 24241 at http://mwrf.com MMIC PIN-Diode Limiters Operate to 20 GHz http://mwrf.com/active-components/mmic-pin-diode-limiters-operate-20-ghz <div class="node-body article-body">PIN-diode limiters are a versatile RF component that can be configured for a wide range of performance specifications. Integrating PIN diodes into a MMIC eliminates the packaging parasitics and enables multiple order limiter structures capable of enhanced power handling.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/active-components/mmic-pin-diode-limiters-operate-20-ghz" target="_blank">read more</a></p> http://mwrf.com/active-components/mmic-pin-diode-limiters-operate-20-ghz#comments Active components Fri, 04 Apr 2014 15:34:00 +0000 23871 at http://mwrf.com Isolators/Circulators Extend to 120 GHz http://mwrf.com/news/isolatorscirculators-extend-120-ghz <div class="node-body article-body"><p>The HMI AND HMC Series broadband ferrite-junction waveguide isolators and circulators are available for frequencies from 18 to 120 GHz. These low-loss components feature 20-dB isolation in standard 2-GHz configurations, with wider bandwidths and higher isolation also available. The isolators are typically used to buffer the outputs of amplifiers and oscillators while the circulators serve as signal duplexers on transceivers with a single antenna. An example of an isolator is Model HMI28, built with WR-28 waveguide.</p></div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/news/isolatorscirculators-extend-120-ghz" target="_blank">read more</a></p> http://mwrf.com/news/isolatorscirculators-extend-120-ghz#comments News Fri, 04 Apr 2014 15:18:00 +0000 24231 at http://mwrf.com Coaxial Switches Trim PIM to 18 GHz http://mwrf.com/news/coaxial-switches-trim-pim-18-ghz <div class="node-body article-body"><p>A line of coaxial switches from Radiall features low levels of passive intermodulation (PIM) for use in different systems and test applications. These switches, which are available with Type-N connectors for use to 12.4 GHz and SMA connectors for use to 18 GHz, can be specified in a variety of configurations, including in single-pole, double-throw (SPDT), double-pole, double-throw (DPDT), single-pole, four-throw (SP4T), and single-pole, six-throw (SP6T) versions. The switches feature long life cycles, with 2 million actuations guaranteed.</p></div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/news/coaxial-switches-trim-pim-18-ghz" target="_blank">read more</a></p> http://mwrf.com/news/coaxial-switches-trim-pim-18-ghz#comments News Fri, 04 Apr 2014 15:16:00 +0000 24221 at http://mwrf.com Amplifier Powers 50 W to 6 GHz http://mwrf.com/news/amplifier-powers-50-w-6-ghz <div class="node-body article-body"><p><img alt="" src="/site-files/mwrf.com/files/uploads/2014/04/comtech.png" style="width: 350px; height: 203px; margin: 5px; float: right;" />Model BME2969-50 is a solid-state, Class AB amplifier based on gallium-nitride (GaN) active-device technology. It delivers 50-W output power from 2 to 6 GHz with 54-dB gain and &plusmn;3-dB gain flatness. Harmonics are held to &ndash;13 dBc. The amplifier runs on bias of 18 to 36 Vdc. It is screened for use to altitudes to 30,000 feet and for shock and vibration per MIL-STD-810F.</p></div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/news/amplifier-powers-50-w-6-ghz" target="_blank">read more</a></p> http://mwrf.com/news/amplifier-powers-50-w-6-ghz#comments News Fri, 04 Apr 2014 15:14:00 +0000 24211 at http://mwrf.com Front-End Module Covers 2.5G, 3G, And 4G http://mwrf.com/news/front-end-module-covers-25g-3g-and-4g <div class="node-body article-body"><p>The Model SKY8021 SkyOne hybrid front-end module (FEM) serves numerous cellular communications bands and operating modes with transmit and receive functions for use in multiband wireless handsets.</p></div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/news/front-end-module-covers-25g-3g-and-4g" target="_blank">read more</a></p> http://mwrf.com/news/front-end-module-covers-25g-3g-and-4g#comments News Fri, 04 Apr 2014 15:11:00 +0000 24201 at http://mwrf.com Diplexer Passes 5.8-GHz Signals http://mwrf.com/news/diplexer-passes-58-ghz-signals <div class="node-body article-body"><p>A high-performance 5.8-GHz diplexer, designed for point-to-point and wireless-radio systems, can be tuned for operation at any point along the popular 5.7-to-5.9-GHz frequency band. For example, a diplexer with channel 1 center frequency of 5,738 MHz and channel 2 center frequency of 5,798 MHz exhibits minimum 1-dB passband of 22.5 MHz with 2 dB or less insertion loss at each center frequency and 2.5 dB or less insertion loss within the channel passbands. The return loss within the passbands is 15 dB or better.</p></div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/news/diplexer-passes-58-ghz-signals" target="_blank">read more</a></p> http://mwrf.com/news/diplexer-passes-58-ghz-signals#comments News Fri, 04 Apr 2014 15:10:00 +0000 24191 at http://mwrf.com Filter Passes E-Band Signals http://mwrf.com/news/filter-passes-e-band-signals <div class="node-body article-body"><p><img alt="" src="/site-files/mwrf.com/files/uploads/2014/04/SPACEK.png" style="width: 350px; height: 263px; margin: 5px; float: right;" />Designed for a rejection band at 68 GHz and below, Model HPF-700 is a waveguide high-pass filter with WR-12 waveguide flanges. It provides 20-dB rejection at 68 GHz and 40 dB or more rejection at 67 GHz and below. The filter will pass all E-band signals down to 71 GHz with typical insertion loss of 1.5 dB and maximum insertion loss of 2.0 dB across E-band frequencies.</p></div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/news/filter-passes-e-band-signals" target="_blank">read more</a></p> http://mwrf.com/news/filter-passes-e-band-signals#comments News Fri, 04 Apr 2014 15:07:00 +0000 24181 at http://mwrf.com Variable Attenuator Pads 2 to 4 GHz http://mwrf.com/news/variable-attenuator-pads-2-4-ghz <div class="node-body article-body"><p><img alt="" src="/site-files/mwrf.com/files/uploads/2014/04/ARRA.png" style="width: 350px; height: 248px; margin: 5px; float: right;" />Model 4804-10AZ is a compact variable attenuator designed for use from 2 to 4 GHz. It features a 10-dB attenuation range with 0.1-dB or better resettability from &ndash;55 to 85&deg;C. The variable attenuator exhibits maximum VSWR of 1.80:1 with 0.5-dB maximum insertion loss. It is housed in an aluminum package with SMA female stainless-steel connectors.</p></div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/news/variable-attenuator-pads-2-4-ghz" target="_blank">read more</a></p> http://mwrf.com/news/variable-attenuator-pads-2-4-ghz#comments News Fri, 04 Apr 2014 15:04:00 +0000 24161 at http://mwrf.com Wireless Power Transfer Resonates to Extend Reach (.PDF Download) http://mwrf.com/datasheet/wireless-power-transfer-resonates-extend-reach-pdf-download <div class="node-body datasheet-body"><p>Ever since Nikola Tesla introduced the prospect of wireless power transfer almost 100 years ago, there has been considerable investment in implementing such systems in the US. Now, it appears that society and market demands...</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><br /> &nbsp;</p> </div> <div class="og_rss_groups"></div> Fri, 04 Apr 2014 15:01:00 +0000 24171 at http://mwrf.com Wireless Power Transfer Resonates to Extend Reach http://mwrf.com/services/wireless-power-transfer-resonates-extend-reach <div class="node-body article-body">From defense, medical, automotive, and commercial applications, long distance and highly efficient wireless power transfer has a lot to offer. Using resonant structures to boost the efficiency and range of wireless power could open the doors for wide industry adoption.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/services/wireless-power-transfer-resonates-extend-reach" target="_blank">read more</a></p> http://mwrf.com/services/wireless-power-transfer-resonates-extend-reach#comments Services Fri, 04 Apr 2014 15:00:00 +0000 23881 at http://mwrf.com Portable Analyzers Measure PIM http://mwrf.com/news/portable-analyzers-measure-pim <div class="node-body article-body"><p>The iHA Series of &ldquo;Companion&rdquo; passive intermodulation (PIM) analyzers are portable, battery-powered test instruments for checking PIM levels. Different models provide different transmit and receive frequencies. Each analyzer is a compact 14 &times; 9 &times; 3.5 in. (350 &times; 230 &times; 90 mm) and weighs 11 lb (5 kg) and runs for about 1 hr on a 25.9-Vdc rechargeable lithium-ion battery. Model iHA-0850B has fixed transmit frequencies of 894 and 870 MHz and a receive frequency of 846 MHz.</p></div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/news/portable-analyzers-measure-pim" target="_blank">read more</a></p> http://mwrf.com/news/portable-analyzers-measure-pim#comments News Fri, 04 Apr 2014 14:43:00 +0000 24151 at http://mwrf.com Power Splitters Minimize PIM http://mwrf.com/news/power-splitters-minimize-pim <div class="node-body article-body"><p><img alt="" src="/site-files/mwrf.com/files/uploads/2014/04/MECA.png" style="width: 350px; height: 324px; margin: 5px; float: right;" />A series of reactive power splitters includes Model LPR3D-1.950WWP for low-passive-intermodulation (PIM) applications from 1,700 to 2,200 MHz. Available in two and three-way versions with <sup>7</sup>/<sub>16</sub> DIN or Type-N connectors at all ports, the splitters cut PIM levels to at least &minus;153 dBc and typically &ndash;160 dBc. They are rated for 120-W power with maximum insertion loss of 0.6 dB and typical insertion loss of 0.5 dB.</p></div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/news/power-splitters-minimize-pim" target="_blank">read more</a></p> http://mwrf.com/news/power-splitters-minimize-pim#comments News Fri, 04 Apr 2014 14:36:00 +0000 24141 at http://mwrf.com MIMO Antenna Covers Four Modern Bands (.PDF Download) http://mwrf.com/datasheet/mimo-antenna-covers-four-modern-bands-pdf-download <div class="node-body datasheet-body"><p>The cost and size of the antenna structures needed to cover all modern telecommunications standards are major considerations for mobile handset manufacturers. Complex antenna arrays that incorporate GPS and multiple-input multiple-output (MIMO) functionality...</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><br /> &nbsp;</p> </div> <div class="og_rss_groups"></div> Gold Fri, 04 Apr 2014 13:50:00 +0000 24131 at http://mwrf.com MIMO Antenna Covers Four Modern Bands http://mwrf.com/passive-components/mimo-antenna-covers-four-modern-bands <div class="node-body article-body">A research team from India proposes a multiple-band MIMO antenna that covers many modern telecommunication bands.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/passive-components/mimo-antenna-covers-four-modern-bands" target="_blank">read more</a></p> http://mwrf.com/passive-components/mimo-antenna-covers-four-modern-bands#comments Passive components Fri, 04 Apr 2014 13:48:00 +0000 23851 at http://mwrf.com 60-GHz IPIC-QVCO Reduces Phase Noise And Error (.PDF Download) http://mwrf.com/datasheet/60-ghz-ipic-qvco-reduces-phase-noise-and-error-pdf-download <div class="node-body datasheet-body"><p>Designing a low-power CMOS phase-locked loop (PLL) operating at 60 GHz for a direct-conversion transceiver is quite tricky. For example, it is difficult to account for low phase noise/phase error...</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><br /> &nbsp;</p> </div> <div class="og_rss_groups"></div> Gold Thu, 03 Apr 2014 20:52:00 +0000 24121 at http://mwrf.com 60-GHz IPIC-QVCO Reduces Phase Noise And Error http://mwrf.com/active-components/60-ghz-ipic-qvco-reduces-phase-noise-and-error <div class="node-body article-body">Researchers from Singapore have designed and tested a 65 nm CMOS quadrature PLL operating at 60 GHz using an IPIC-QVCO typology for reduced phase noise and phase error. </div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/active-components/60-ghz-ipic-qvco-reduces-phase-noise-and-error" target="_blank">read more</a></p> http://mwrf.com/active-components/60-ghz-ipic-qvco-reduces-phase-noise-and-error#comments Active components Thu, 03 Apr 2014 20:50:00 +0000 23841 at http://mwrf.com Metamaterials Enable Magnetic Superlens For WPT (.PDF Download) http://mwrf.com/datasheet/metamaterials-enable-magnetic-superlens-wpt-pdf-download <div class="node-body datasheet-body"><p>As more is invested in techniques for relaying power wirelessly, research into boosting the efficiency of wireless power transfer (WPT) is increasing as well. One area being explored is the use of optical-lens concepts...</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><br /> &nbsp;</p> </div> <div class="og_rss_groups"></div> Gold Thu, 03 Apr 2014 19:11:00 +0000 24111 at http://mwrf.com Metamaterials Enable Magnetic Superlens For WPT http://mwrf.com/passive-components/metamaterials-enable-magnetic-superlens-wpt <div class="node-body article-body">Using the unique capabilities of magnetic metamaterials, a research group from Duke University has developed a range-enhancing superlens. This lens has the capability of improving the range and efficiency of wireless power transfer techniques.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/passive-components/metamaterials-enable-magnetic-superlens-wpt" target="_blank">read more</a></p> http://mwrf.com/passive-components/metamaterials-enable-magnetic-superlens-wpt#comments Passive components Thu, 03 Apr 2014 19:08:00 +0000 23831 at http://mwrf.com