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May 17, 2012
A coaxial cable that fails the phase-stability test can be deadly to the accuracy of a microwave vector network analyzer (VNA). Many suppliers offer coaxial cables for VNA measurements, promising excellent phase and amplitude stability, but the proof is in the measurements. The latest line of cables characterized by outstanding phase stability is the Phase Critical product line from Times Microwave Systems, which are usable to 30 GHz and also exhibit low insertion loss. To learn more, click here.
Related story:
VNA Eases On-Wafer Measurements To 110 GHz
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May, 17, 2012
Tubes have their places in the audiophile world, although for sheer output power, they can’t stand with transistors at audio frequencies. But at RF/microwave frequencies, in applications such as for satellite communications (satcom) systems, it is another story altogether. Tubes such the traveling-wave tubes (TWTs) used in traveling-wave-tube amplifiers (TWTAs) are unmatched for their clean, linear output power across satcom channel bandwidths. How can this be with all the advances in solid-state devices? Click here to find out more.
Related story:
Amplifiers Gain In Performance
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May 17, 2012
Design software was once a luxury for engineers. But now, software design tools such as electromagnetic (EM) simulators can really speed the design process and provide a good idea of circuit performance before committing to a filter or antenna layout (and the waste of that expensive dielectric material). Of course, with all the software design tools on the market, including EM simulators, how do you know which is the right one for a particular application? Click here to find out.
Related story:
EM Simulators Improve With Age
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May 17, 2012
Antennas come in many shapes and sizes, including in some forms (such as leaky coax for in-building applications) that might not even be considered antennas. They are modeled by means of EM simulation software and tested in anechoic chambers. Keeping up with antenna technologies can be time consuming, but a special “Product Trends” report in the June issue of Microwaves & RF will feature some of the most recent antenna product developments. And for those who simply want to know more about RF/microwave antennas, click here.
Related story:
Antennas Extend Wireless Systems
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May 17, 2012
Medical electronic devices are becoming a growing business for the RF/microwave industry, with a steady increase in the use of wireless technology for medical applications. Since the establishment of different Industrial-Scientific-Medical (ISM) bands by the International Telecommunication Union (ITU), developers of medical electronic products have experimented with ways to eliminate cables and connectors, and wireless solutions are catching on quickly. A special news report in the July issue of Microwaves & RF will probe these market opportunities further. But for those who want more information on medical RF/microwave electronics now, click here.
Related story:
Prevent PCB Problems in ISM-Band Designs
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May 17, 2012
Most engineers faced with generating fast-switching (as in 0.5-ms) microwave test signals through 9 GHz with low phase noise will probably think of a five-figure price tag. But to have such frequency synthesizers available for less than a ride-on mower brings new meaning to the phrase “affordable microwave test equipment.” The reason for the high performance at low cost is due to these test signal sources being designed and manufactured by a newcomer to the industry, Pronghorn Solutions. And although they measure only 7.0 x 2.2 x 5.0 in., these synthesizers provide full-sized performance in terms of spectral purity and provide as much as +10 dBm output power through 6 GHz. To learn more, click here.
Related story:
Synthesizers Shave Size, Not Performance
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May 17, 2012
The April/May issue of Defense Electronics, a special supplement to Microwaves & RF, is now live! To read the supplement in its entirety, click here.
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Medical Design & Manufacturing (MDM) East
21-24, 2012
Pennsylvania Convention Center
Philadelphia, PA
IEEE International Conference on Communications
June 10-15, 2012
Ottawa Convention Center
Ottawa, Ontario, Canada
IMS2012 International Microwave Symposium
June 17-22, 2012
Montreal Convention Center (Palais des Congres)
Montreal, Quebec, Canada
Antenna Parameter Measurement By Near-Field Techniques
Short course by National Institute of Science and Technology (NIST
September 18-20, 2012
NIST Boulder Labs
Boulder, CO
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