Contribs http://mwrf.com/taxonomy/term/6621/more en Data Converters Drive RF Designs http://mwrf.com/contribs/data-converters-drive-rf-designs <div class="field-deck"> The faster operating speeds of high-resolution data converters have made them invaluable components in transmitters and receivers, replacing many RF components in the process. </div> <div class="node-body article-body"><p> Data converters are an &quot;end point&quot; on a system block diagram for many RF/microwave designers&mdash;the points at which analog signals are converted to digital bits and back again. In recent years, those data converters have gotten faster and boast higher resolution, allowing them to take on a greater portion of receiver and transmitter block diagrams.</p></div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/contribs/data-converters-drive-rf-designs" target="_blank">read more</a></p> http://mwrf.com/contribs/data-converters-drive-rf-designs#comments Contribs Fri, 10 Aug 2012 14:31:00 +0000 9381 at http://mwrf.com SS Method Employs Novel Encryption http://mwrf.com/systems/ss-method-employs-novel-encryption <div class="field-byline"> Zhang Zhao-Xia, Tong Hai-Li, Zhang Jian-Zhong, and Xiao Bao-Jin </div> <div class="field-deck"> This spread-spectrum communications approach is based on true random sequence encryption for improved data-transfer efficiency and enhanced security compared to traditional systems. </div> <div class="node-body article-body">This spread-spectrum communications approach is based on true random sequence encryption for improved data-transfer efficiency and enhanced security compared to traditional systems.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/systems/ss-method-employs-novel-encryption" target="_blank">read more</a></p> http://mwrf.com/systems/ss-method-employs-novel-encryption#comments Content Contribs Commercial Defense Systems Wed, 13 Jun 2012 04:00:00 +0000 7776 at http://mwrf.com CRLH-TLs Help Miniaturize PCBs http://mwrf.com/semiconductors/crlh-tls-help-miniaturize-pcbs <div class="field-byline"> Hui-Yong Zeng, Guang-Ming Wang, Ke Lu, Jian-Gang Liang, and Cheng Zhou </div> <div class="field-deck"> These innovative circuit structures can help achieve lower resonant frequencies in microstrip circuits without having to increase the length or size of the circuits, and without having to added lumped circuit elements. </div> <div class="node-body article-body">These innovative circuit structures can help achieve lower resonant frequencies in microstrip circuits without having to increase the length or size of the circuits, and without having to added lumped circuit elements.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/semiconductors/crlh-tls-help-miniaturize-pcbs" target="_blank">read more</a></p> http://mwrf.com/semiconductors/crlh-tls-help-miniaturize-pcbs#comments Content Contribs ANSYS Passive components Semiconductors Wed, 13 Jun 2012 04:00:00 +0000 7809 at http://mwrf.com Novel LNA Cuts Noise, Not Gain http://mwrf.com/contribs/novel-lna-cuts-noise-not-gain <div class="field-byline"> Chunhua Wang and Yuxiang Tu </div> <div class="field-deck"> This two-stage amplifier design employs an LC network to eliminate the customary source-degrading inductor, achieving low noise figure with high gain at 5.8 GHz. </div> <div class="node-body article-body">This two-stage amplifier design employs an LC network to eliminate the customary source-degrading inductor, achieving low noise figure with high gain at 5.8 GHz.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/contribs/novel-lna-cuts-noise-not-gain" target="_blank">read more</a></p> http://mwrf.com/contribs/novel-lna-cuts-noise-not-gain#comments Contribs Active components Wed, 13 Jun 2012 04:00:00 +0000 7815 at http://mwrf.com SIR Cells Support UWB Lowpass Filter http://mwrf.com/passive-components/sir-cells-support-uwb-lowpass-filter <div class="field-deck"> This microstrip lowpass filter uses compact folded resonator cells to achieve an extremely broadband response with sharp rolloff characteristics in a small circuit size. </div> <div class="node-body article-body">This microstrip lowpass filter uses compact folded resonator cells to achieve an extremely broadband response with sharp rolloff characteristics in a small circuit size.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/passive-components/sir-cells-support-uwb-lowpass-filter" target="_blank">read more</a></p> http://mwrf.com/passive-components/sir-cells-support-uwb-lowpass-filter#comments Contribs Passive components Software Wed, 13 Jun 2012 04:00:00 +0000 7847 at http://mwrf.com Optimizing PLL Performance Levels Part 2 http://mwrf.com/active-components/optimizing-pll-performance-levels-part-2 <div class="field-deck"> Designing a PLL synthesizer for modern mobile communications systems involves achieving the proper balance among a number of tradeoffs, including spurious levels and frequency switching speed. </div> <div class="node-body article-body">Designing a PLL synthesizer for modern mobile communications systems involves achieving the proper balance among a number of tradeoffs, including spurious levels and frequency switching speed.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/active-components/optimizing-pll-performance-levels-part-2" target="_blank">read more</a></p> http://mwrf.com/active-components/optimizing-pll-performance-levels-part-2#comments Content Contribs Active components Commercial Defense Thu, 17 May 2012 04:00:00 +0000 7602 at http://mwrf.com Low-Power Mixer Hits High Intercept http://mwrf.com/analog-semiconductors/low-power-mixer-hits-high-intercept <div class="field-deck"> Fabricated with 0.18-m RF CMOS technology, this downconversion mixer uses a current-reuse bleeding technique to achieve high linearity, while consuming only 6 mW from a +1.2-VDC supply. </div> <div class="node-body article-body">Fabricated with 0.18-m RF CMOS technology, this downconversion mixer uses a current-reuse bleeding technique to achieve high linearity, while consuming only 6 mW from a +1.2-VDC supply.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/analog-semiconductors/low-power-mixer-hits-high-intercept" target="_blank">read more</a></p> http://mwrf.com/analog-semiconductors/low-power-mixer-hits-high-intercept#comments Content Contribs Active components Analog semiconductors Commercial Defense Thu, 17 May 2012 04:00:00 +0000 7607 at http://mwrf.com Predict PLL Reference Spurs http://mwrf.com/analog-semiconductors/predict-pll-reference-spurs <div class="field-deck"> Reference spurious signals can plague even the most carefully designed phase lock loops, but this analysis technique shows how to predict and avoid these unwanted spurious products. </div> <div class="node-body article-body">Reference spurious signals can plague even the most carefully designed phase lock loops, but this analysis technique shows how to predict and avoid these unwanted spurious products.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/analog-semiconductors/predict-pll-reference-spurs" target="_blank">read more</a></p> http://mwrf.com/analog-semiconductors/predict-pll-reference-spurs#comments Content Contribs Active components Analog semiconductors Commercial Defense Thu, 17 May 2012 04:00:00 +0000 7613 at http://mwrf.com SIW And CDGS Combine For BPF http://mwrf.com/components/siw-and-cdgs-combine-bpf <div class="field-deck"> By combining lowpass and highpass filters, it is possible to design and fabricate an extremely compact bandpass filter with relative bandwidth that exceeds 78%. </div> <div class="node-body article-body">By combining lowpass and highpass filters, it is possible to design and fabricate an extremely compact bandpass filter with relative bandwidth that exceeds 78%.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/components/siw-and-cdgs-combine-bpf" target="_blank">read more</a></p> http://mwrf.com/components/siw-and-cdgs-combine-bpf#comments Content Contribs Components Thu, 17 May 2012 04:00:00 +0000 7617 at http://mwrf.com Navigating Multilayer Microwave PCB Tradeoffs http://mwrf.com/components/navigating-multilayer-microwave-pcb-tradeoffs <div class="field-deck"> There are numerous ways to assemble multilayer microwave printed circuits, depending on whether cost or performance is important, and when factors such as ease of fabrication and reliability are critical. </div> <div class="node-body article-body">There are numerous ways to assemble multilayer microwave printed circuits, depending on whether cost or performance is important, and when factors such as ease of fabrication and reliability are critical.</div> <div class="og_rss_groups"></div><p><a href="http://mwrf.com/components/navigating-multilayer-microwave-pcb-tradeoffs" target="_blank">read more</a></p> http://mwrf.com/components/navigating-multilayer-microwave-pcb-tradeoffs#comments Content Contribs Materials Commercial Defense Industrial Thu, 17 May 2012 04:00:00 +0000 7619 at http://mwrf.com