Home

dB or not dB? Everything you ever wanted to know about decibels but were afraid to ask...

True or false: 30 dBm + 30 dBm = 60 dBm? Why does 1% work out to be -40 dB one time but then 0.1 dB or 0.05 dB the next time? These questions sometimes leave even experienced engineers scratching their heads. Decibels are found everywhere, including power levels, voltages, reflection coefficients, noise figures, field strengths and more. What is a decibel and how should we use it in our calculations? This Application Note is intended as a refresher on the subject of decibels.

Posted in: White Papers, White Papers

Read More >>

Antenna Basics

This white paper describes the basic functionality of antennas. Starting with Hertz's Antenna model followed by a short introduction to the fundamentals of wave propagation, the important general characteristics of an antenna and its associated parameters are explained.

Posted in: White Papers, White Papers

Read More >>

How to Select an Analog Signal Generator

Today’s microwave and wireless communications market is expanding at an incredible rate. Along with this growth comes an increasing need for test equipment, such as an analog signal generator, that can help verify the performance of devices and systems.

Posted in: White Papers, White Papers

Read More >>

The Fast Guide to Protecting COTS Electronics with Conformal Coatings: The Basics of Acrylic, Silicone, Urethane and Parylene Conformal Coatings

Commercial off-the-shelf (COTS) electronics are used frequently for military and aerospace applications. They need to provide unquestionable performance, operating without fail under often extreme, severe, and rugged circumstances for extended periods of time. Some COTS applications that demand solutions superior to normal use are:

Posted in: White Papers, White Papers, Coatings & Adhesives

Read More >>

White Light LED Source

Excelitas Technologies Corp. (Waltham, MA) has introduced the X-Cite 120LEDmini – a compact white light LED source for fluorescence imaging applications. Through direct coupling, the X-Cite 120LEDmini provides efficient optical output and exceptional uniformity. The X-Cite 120LEDmini offers broad-spectrum coverage ranging from 370nm to 700nm with high excitation power for popular fluorophores including DAPI, GFP, mCherry, and Cy5. Through USB, TTL or manual control via speedDIAL, a standard component included with the system, the X-Cite 120LEDmini offers convenient control options for any instrument configuration, from basic to fully automated operation. To learn more click here.

Posted in: Products

Read More >>

Self-Supporting Sponge Connectors

Fujipoly’s (Carteret, NJ) Self-Supporting Sponge Connectors are ideal for connecting LCD panels to circuit boards with a very low deflection force. Each connector is made from an economical and highly reliable Zebra® core that is sandwiched between two soft sponge supports. The silicone rubber “supports” create a larger base width and eliminate the need to install a separate holder. The connector is available in a multitude of widths to accommodate LCD’s with a minimum glass lip overhang of 0.060”/1.5 mm. The carbon-based ZEBRA® connectors can be ordered with 140, 240 or 500 conductive layers per inch and provide a current carrying capacity of .050 mA per .040” x .040” pad. To learn more click here.

Posted in: Products

Read More >>

Plastic Diffractive Optical Elements

If diffractive optical elements are used at low and medium laser power, then plastic elements may be sufficient instead of using fused silica elements. Laser Components (Bedford, NH) offers Holo/ORs plastic DOEs in different materials: polycarbonate, PMMA, Zeonex, and Zoner. They are produced in large quantities using an injection molding process. Plastic DOEs are used in particular in systems of mass production. For the most part, customers have optics made that feature their required specifications. Holo/OR offers inexpensive tooling and low production costs. Multi-spot DOEs and homogenizers are currently available as standard elements for the wavelengths 850 nm and 532 nm. To learn more click here.

Posted in: Products

Read More >>