Compact VCOs Expand Bandwidth While Cutting Phase Noise
Engineers continuously work to achieve wider tuning ranges at higher frequencies with much lower phase noise and higher stability in voltage-controlled oscillators (VCOs). At the same time, they are pressured to offer such VCOs in miniature ...
Limit Losses In Coaxial Cable Assemblies
Loss is inevitable in coaxial cable assemblies. But with improved materials, refined construction techniques, and high-quality connectors, manufacturers of flexible and semi-rigid cable assemblies are continuing to meet more stringent requirements ...
Integration Paves Way For Compact PA Modules
Power amplifiers (PAs) and power-amplifier modules (PAMs) are being made smaller and with more functionality to meet the requirements of third/ fourth-generation (3G/4G) multiband, multimode phones. Whether based on Wideband Code Division ...
Hybrid Combiners Add Channels With Low PIM
Signal combining in cellular base stations and other systems requires components with high isolation between signal paths, low loss in those paths, and minimal passive intermodulation distortion (PIM) added to the signals. As the number ...
Precision Cables Preserve Microwave Measurement Accuracy
Precision cables are usually the last addition to a microwave test system. Often, they are an afterthought. The wrong cables, however, can add unstable electrical characteristics to the system and unreliable test results. For that reason, it ...
Shrinking Directional Couplers Boost Power And Bandwidth
Directional couplers are often needed to monitor incident or reflected power, sample signals, or inject signals onto transmission lines. These passive components are critical to power-measuring instrumentation and communication systems. By ...
RF Adapters Gain Bandwidth While Lowering Return Loss
From laboratory test setups to the transmitting equipment connected to base-station antennas, coaxial and waveguide adapters have been guiding RF and microwave signals for a long time. These adapters have increased flexibility by ...
Device Advances Lead To Lower LNA Noise Levels
Next-generation communication receivers need to provide improved sensitivity and dynamic range over wide bandwidths. To accomplish this feat, the receivers are counting on low-noise amplifiers (LNAs) to deliver higher gain and linearity over broad ...
VCOs Deliver Expanded Coverage In Smaller Packages
Voltage-controlled oscillators (VCOs) continue to add bandwidth with reduced size. As essential frequency elements in communications synthesizers, the latest generation of VCOs covers ever-wider tuning ranges with lower phase noise and ...
